Like operator in for all entries

hi all,
may i know how to apply like for "for all entries"
where the first position is 9.
syntax is incorrect. hope can get help.
thanks
  CONCATENATE itab-xx+0(1) '%' INTO v_kstar.
  SELECT kstar txt20 INTO TABLE it_act
    FROM aaa
    FOR ALL ENTRIES IN itab
    WHERE kstar like v_kstar AND
          spras = sy-langu.

in that case u have to call with in loop itself, may be there is another way also.
  do v_times times
     varying v_name
     from dept-dept01
     next dept-dept02.
    concatenate  p_rprctr '%' v_name into v_dep.
   concatenate '%' v_name into v_dep.
    select single mctxt into v_txt
      from cskt
      where cskt~spras = 'EN'
      and   cskt~kokrs = 'PEPS'
      and   cskt~kostl like v_dep
      and   cskt~datbi eq '99991231'.
    concatenate v_txt '-' v_name into v_txt.
    write: (47)  v_txt centered no-gap ,
          sy-vline no-gap .
    hide v_name.
  clear v_dep.
  enddo.
its not a complete code , just a sample code.
Regards
Prabhu

Similar Messages

  • LIKE in SELECT FOR ALL ENTRIES

    Hello all,
    select * from mara
                into corresponding fields of tabel itab_mara
                for all entries in table itab
                where matnr LIKE itab-matnr.
    for my requirement, I want to use the above statement. because in ITAB, i have MATNR with only 10 digit.
    But the problem is system does not allow this syntax.
    Do you have an idea which will avoid any other SELECT s and get away with it.
    Thanks.

    Hi
    Select Statements    contd…For All Entries
    •     The for all entries creates a where clause, where all the entries in the driver table are combined with OR. If the number of entries in the driver table is larger than rsdb/max_blocking_factor, several similar SQL statements are executed to limit the length of the WHERE clause.
         The plus
    •     Large amount of data
    •     Mixing processing and reading of data
    •     Fast internal reprocessing of data
    •     Fast
         The Minus
    •     Difficult to program/understand
    •     Memory could be critical (use FREE or PACKAGE size)
    Points to be must considered FOR ALL ENTRIES
    •     Check that data is present in the driver table
    •     Sorting the driver table
    •     Removing duplicates from the driver table
    Consider the following piece of extract
    Loop at int_cntry.
           Select single * from zfligh into int_fligh
    where cntry = int_cntry-cntry.
    Append int_fligh.
    Endloop.
    The above mentioned can be more optimized by using the following code.
    Sort int_cntry by cntry.
    Delete adjacent duplicates from int_cntry.
    If NOT int_cntry[] is INITIAL.
                Select * from zfligh appending table int_fligh
                For all entries in int_cntry
                Where cntry = int_cntry-cntry.
    Endif.

  • Select query like For all Entries

    Hi,
    I have a requirement like:
    I need to extract data (BKTXT) from table BKPF based on some criteria, into one internal table and I need to query on REGUP table for the above data, the selection criteria on REGUP as follows:
    BKTXT(Document Header Text with 25 Char) is a combination of DATE and character string.
    Ex: bkpf-bktxt = 20060710-PL02 (YYYYMMDD)
    it is like LAUFD + LAUFI (of table REGUP)
    i.e: LAUFD (REGUP) = 07/10/2006 (MM/DD/YYYY) and LAUFI(REGUP) = PL02
    here I am thinking to use a select query on REGUP using FOR ALL ENTRIES of table i_bkpf..
    How can I change the date format YYYYMMDD to MM/DD/YYYY for my requirement?
    ((    Run-on Date (REGUP-LAUFD) = the first 8 characters in the Document Header Text (BKPF- BKTXT) in MM/DD/YYYY date format (e.g. 07/10/2006)
       Run ID (REGUP-LAUFI) = the 10th character through the 15th character in the Document Header Text (BKPF- BKTXT)

    It is not possible to do in the way you are thinking of doing. "For all entries" requires you to have the itab table field and the database table field to have the same type and length. So something like below <u>will not work</u>.
    TABLES: regup.
    DATA: BEGIN OF itab OCCURS 0,
            text LIKE bkpf-bktxt.
    DATA: END OF itab.
    DATA: BEGIN OF itab_regup OCCURS 0.
            INCLUDE STRUCTURE regup.
    DATA: END OF itab_regup.
    SELECT * INTO TABLE itab_regup
             FROM regup FOR ALL ENTRIES IN itab
            WHERE laufd = itab-text+0(8).
    If you run this code, you will get an error as follows:
    <i>"When using the addition "FOR ALL ENTRIES IN itab", the fields "LAUFD" and "ITAB-TEXT+0(8)" must have the same type and length."</i>

  • Does 'For All Entries in itab' work exactly like 'Join' statement?

    Hi,
    I would like to know that if 'For All Entries in itab' work exactly like 'Join' statement?
    If yes, then when I use 'For All Entries in itab' and a 'Join' statement seperately with the same logical conditions for both, the number of records returned by the two methods are not same. Ideally, they should both return the same number of recs.
    Can somebody help?
    With regards.

    Hi,
    for all entries will not work in the same way unless untill it should satisfy some conditions,
    it has some pre-requisests...
    like in the select clause or in where clause or in both the cluases, there should be entire key..
    then only it will behave like the join statement..
    hope i am clear.
    please revert back if u have any quiries.
    Regards,
    Sunil Kumar Mutyala.

  • For All Entries is NOT better than INNER JOIN in most cases

    I quote from Siegfried Boes' excellent post here: Will writing an inner join be better or creating a view?
    For all the FOR ALL ENTRIES lovers ... there is no proof for these reappearing recommendation.
    There is nearly nobody who receives forum points, who recommends FOR ALL ENTRIES instead of Joins. What is the reason ???
    It is easier to prove the opposite. A Join is a nested loop inside the database, a FOR ALL ENTRIES is partly outside of the database. FOR ALL ENTRIES works in blocks, joins on totals.
    FOR ALL ENTRIES are not recommded on really large tables, because the chances are too high that
    too many records are transferred.
    People prefer FOR ALL ENTRIES, because JOINs are not so easy to understand. Joins can go wrong, but with a bit of understanding they can be fixed.
    Some Joins are slow and can not be fixed, but then the FOR ALL ENTRIES would be extremely slow.
    There are several kinds of views:
    - projection views, i.e. only one table involved just fields reduced
    - join views, several tables, joins conditions stored in dictionary
    - materialized views, here the joined data are actually stored in the database. Storing and synchronisation has to be done manually.
    Only the last one creates real overhead. It should be the exception.
    Join Views and Joins are nearly identical. The view is better for reuse. The join is better in complicated, becuase if the access goes wrong, it can often be fixed by adding a hint. Hints can not be added to views.
    Abraham Bukit  points out:
    If it is cluster table, (you can't use join). If it is buffered table, I would also say avoid join.
    If they all are transaction table which are not buffered and are not cluster tables.  
    He further supports Siegfried's statement that FAE is easier to undestand than INNER JOINs.
    Thomas Zloch says, regarding buffered tables:
    At least think twice, maybe compare runtimes if in doubt. 
    So, unless someone has some EVIDENCE that FOR ALL ENTRIES is better, I don't think we want to see this discussed further.
    Kind regards
    Matt

    To give food for thought here's an example I  gave in a thread:
    If you have a statement like
    SELECT ... FOR ALL ENTRIES IN FAE_itab WHERE f = FAE_itab-f.
    SAP sends it to the database depending how the parameter rsdb/prefer_union_all is set:
    rsdb/prefer_union_all = 0 =>
    SELECT ... WHERE f = FAE_itab[1]-f
              OR    f = FAE_itab[2]-f
              OR    f = FAE_itab[N]-f
    You have some influence  of the generated statement type: Instead of OR'ed fields an IN list can be used
    if you have only a single coulmn N to compare:
    rsdb/prefer_in_itab_opt parameter:
    SELECT ... WHERE f IN (itab[1]-f, itab[2]-f, ..., itab[N]-f)
    rsdb/prefer_union_all = 1 =>
    SELECT ... WHERE f = FAE_itab[1]-f
    UNION ALL SELECT ... WHERE f = FAE_itab[2]-f
    UNION ALL SELECT ... WHERE f = FAE_itab[N]-f
    see: Note 48230 - Parameters for the SELECT ... FOR ALL ENTRIES statement
    As you can see for the 2nd parameter several statements are generated and combined with a UNION ALL,
    the first setting generates statements with OR's (or uses IN  if possible) for the entries in FAE_itab.
    I give you a little example here (my parameters are set in a way that the OR's are translated to IN lists; i traced the execution in ST05)
    Select myid into table t_tabcount from mydbtable
      for all entries in t_table    " 484 entries
        where myid = t_table-myid .
    ST05 trace:
    |Transaction SEU_INT|Work process no 0|Proc.type  DIA|Client  200|User |
    |Duration |Obj. name |Op.    |Recs.|RC    |Statement|
    | 640|mydbtable |PREPARE|   |  0|SELECT WHERE "myid" IN ( :A0 , :A1 , :A2 , :A3 , :A4 ) AND "myid" = :A5|
    | 2|mydbtable |OPEN   |   |  0|SELECT WHERE "myid" IN ( 1 , 2 , 3 , 4 , 5 ) AND "myid" = 72 |
    | 2.536|mydbtable |FETCH  |    0|  1403|   |
    | 3|mydbtable |REOPEN |   |  0|SELECT WHERE "myid" IN ( 6 , 7 , 8 , 9 , 10 ) AND "myid" = 72 |
    | 118|mydbtable |FETCH  |  0|  |
    | 2|mydbtable |REOPEN |  |  0|SELECT WHERE "myid" IN ( 11 , 12 , 13 , 14 , 15 ) AND "myid" = 72     |
    | 3|mydbtable |REOPEN |  |  0|SELECT WHERE "myid" IN ( 475 , 476 , 477 , 478 , 479 ) AND "myid" = 72  |
    | 94|mydbtable |FETCH  | 0| 1403|   |
    | 2|mydbtable |REOPEN |   |  0|SELECT WHERE "myid" IN ( 480 , 481 , 482 , 483 , 484 ) AND "myid" = 72 |
    You see the IN list contained 5 entries each , wich made up about 97 statements for all 484 entries.
    For every statment you have a single fetch operation wich means a separate access to the database.
    If you would replace the FAE with a join you would only have one fetch to the database.
    With the example above we can derive these observations:
    1. From database point of view these settings kill performance when you access a big table and/or have a lot of entries or columns in your FAE_itab. Furthermore, you hide information what data you will access
    at all and thus you block the database from creating a more efficient execution plan because it DOESN'T KNOW wich data you will select in the next step. I.e. it may be more efficient to scan the table in one shot instead of having many index accesses - but the database can make this decision only if it can examine ONE statement that has ALL the information of what data to retrieve.
    2. A second impact is that with every statement execution you trigger the allocation of database resources
    wich will contribute to the overhead described above.
    Said that, FAE  can never be a replacement for joining big tables (think of having a table with thousands of records in a FAE table )
    Edited by: kishan P on Nov 2, 2010 2:16 PM - Format Fixed

  • Select... for all entries in...

    Hi,
    Can anybody help me to sort out this issue. This select should work. I m filling an itab with distinct pernr. in temp it should give <b>all the records for which pernr should not be in itab.</b>
    report ZTEST4.
    data : begin of ITAB occurs 0,
            PERNR like PA0001-PERNR,
            ename like pa0001-ename,
           end of ITAB.
    data : temp like itab occurs 0 with header line.
    clear : ITAB, TEMP.
    refresh : ITAB,TEMP.
    select distinct PERNR into table ITAB from PA0001 where PERNR le 10.
    select PERNR ENAME into table TEMP from PA0001
    for all entries in ITAB where pernr not in itab-pernr.
    sort TEMP by PERNR.
    break-point.

    Hi Sagar,
    If i understand it well, you exclude all PERNR LE 10.
    But first things first.
    You cannot use the FOR ALL ENTRIES in your case (it doesn't allow the operator "NOT IN").
    Your code should be:
    REPORT ztest4.
    TYPES: BEGIN OF ty_itab,
             pernr TYPE persno,
             ename TYPE emnam,
           END OF ty_itab.
    DATA : itab TYPE ty_itab occurs 0,
           wtab TYPE ty_itab.
    CLEAR: itab,
           wtab.
    SELECT pernr ename
         INTO TABLE itab
               FROM pa0001
              WHERE pernr LE 10
           ORDER BY pernr.
    IF sy-subrc EQ 0.
      DELETE ADJACENT DUPLICATES FROM itab COMPARING pernr.
    ENDIF.
    Regards,
    Rob.

  • For All Entries with two tables

    Hi All,
             Can we use FOR ALL ENTRIES with two tables. for example
    SELECT * FROM MKPF INTO TABLE T_MKPF
             WHERE BUDAT IN S_BUDAT.
    SELECT * FROM MARA INTO TABLE T_MARA
             WHERE MTART IN S_MTART AND
                            MAKTL IN S_MAKTL.
    SELECT * FROM MSEG INTO TABLE T_MSEG
           FOR ALL ENTRIES IN  "T_MKPF AND T_MARA"
                  WHERE MBLNR EQ T_MKPF-MBLNR AND
                                 MATNR EQ T_MARA-MATNR.
    can we do it like this or any other way to do this plz tell. I waitting for your responce.
    Thanks
    Jitendra

    Hi,
    u cannot do like this....chek some documentation on it..
    1. duplicate rows are automatically removed
    2. if the itab used in the clause is empty , all the rows in the source table will be selected .
    3. performance degradation when using the clause on big tables.
    Say for example you have the following abap code:
    Select * from mara
    For all entries in itab
    Where matnr = itab-matnr.
    If the actual source of the material list (represented here by itab) is actually another database table, like:
    select matnr from mseg
    into corresponding fields of table itab
    where ….
    Then you could have used one sql statement that joins both tables.
    Select t1.*
    From mara t1, mseg t2
    Where t1.matnr = t2.matnr
    And T2…..
    So what are the drawbacks of using the "for all entires" instead of a join ?
    At run time , in order to fulfill the "for all entries " request, the abap engine will generate several sql statements (for detailed information on this refer to note 48230). Regardless of which method the engine uses (union all, "or" or "in" predicates) If the itab is bigger then a few records, the abap engine will break the itab into parts, and rerun an sql statement several times in a loop. This rerun of the same sql statement , each time with different host values, is a source of resource waste because it may lead to re-reading of data pages.
    returing to the above example , lets say that our itab contains 500 records and that the abap engine will be forced to run the following sql statement 50 times with a list of 10 values each time.
    Select * from mara
    Where matnr in ( ...)
    Db2 will be able to perform this sql statement cheaply all 50 times, using one of sap standard indexes that contain the matnr column. But in actuality, if you consider the wider picture (all 50 executions of the statement), you will see that some of the data pages, especially the root and middle-tire index pages have been re-read each execution.
    Even though db2 has mechanisms like buffer pools and sequential detection to try to minimize the i/o cost of such cases, those mechanisms can only minimize the actual i/o operations , not the cpu cost of re-reading them once they are in memory. Had you coded the join, db2 would have known that you actually need 500 rows from mara, it would have been able to use other access methods, and potentially consume less getpages i/o and cpu.
    In other words , when you use the "for all entries " clause instead of coding a join , you are depriving the database of important information needed to select the best access path for your application. Moreover, you are depriving your DBA of the same vital information. When the DBA monitors & tunes the system, he (or she) is less likely to recognize this kind of resource waste. The DBA will see a simple statement that uses an index , he is less likely to realize that this statement is executed in a loop unnecessarily.
    Beore using the "for all entries" clause and to evaluate the use of database views as a means to:
    a. simplify sql
    b. simplify abap code
    c. get around open sql limitations.
    check the links
    http://www.thespot4sap.com/articles/SAPABAPPerformanceTuning_ForAllEntries.asp
    The specified item was not found.
    Regards,
    Nagaraj

  • Problem with for all entries

    Hi all,
       When i was trying to use for all entries, i am not able to pull records inside my internal table. Though both of the tables have the common key fields between them(and ofcourse have entries in that). Now what i have analyzed was, the first table is having 7 primary keys and the one i am using for 'for all entries' comes 6th. Does this gives any impact in pulling records inside my internal table?.Else please give me a possible solution for this. The alternate statement(a normal select query with * ) that i had used for this reserved my dialog processor for a while. Which resulted in 'time exceeded' short dump.

    Hi,
    The WHERE clause of the SELECT statement has a special variant that allows you to derive conditions from the lines and columns of an internal table:
    SELECT ... FOR ALL ENTRIES IN <itab> WHERE <cond> ...
    <cond> may be formulated as described above. If you specify a field of the internal table <itab> as an operand in a condition, you address all lines of the internal table. The comparison is then performed for each line of the internal table. For each line, the system selects the lines from the database table that satisfy the condition. The result set of the SELECT statement is the union of the individual selections for each line of the internal table. Duplicate lines are automatically eliminated from the result set. If <itab> is empty, the addition FOR ALL ENTRIES is disregarded, and all entries are read.
    The internal table <itab> must have a structured line type, and each field that occurs in the condition <cond> must be compatible with the column of the database with which it is compared. Do not use the operators LIKE, BETWEEN, and IN in comparisons using internal table fields. You may not use the ORDER BY clause in the same SELECT statement.
    You can use the option FOR ALL ENTRIES to replace nested select loops by operations on internal tables. This can significantly improve the performance for large sets of selected data.
    Hope this is useful
    Reema

  • Queries for FOR ALL ENTRIES IN

    1. If I use For all entries in inspite of loop within loop , wil it help in   
        increasing processing time ??
    2. There is one problem in For all entries in , it is not fetching all 
         entries but it left entries having same data so is it like that only
    Please dont pass any link.
    Ankesh.

    Hi,
    SELECT ... FOR ALL ENTRIES IN <itab> WHERE <cond> ..<cond>
    If you specify a field of the internal table <itab>
    as an operand in a condition, you address all lines of the internal table. The comparison is then performed for each line of the internal table. For each line, the system selects the lines from the database table that satisfy the condition. The result set of the SELECT statement is the union of the individual selections for each line of the internal table. Duplicate lines are automatically eliminated from the result set. If <itab> is empty, the addition FOR ALL ENTRIES is disregarded, and all entries are read. The internal table <itab> must have a structured line type, and each field that occurs in the condition <cond> must be compatible with the column of the database with which it is compared. Do not use the operators LIKE, BETWEEN, and IN in comparisons using internal table fields. You may not use the ORDER BY clause in the same SELECT statement. You can use the option FOR ALL ENTRIES to replace nested select loops by operations on
    internal tables. This can significantly improve the performance for large sets of selected data.
    It is also possible to avoid nested SELECT loops by placing the selection from the outer loop in an internal table and then running the inner selection once only using the FOR ALL ENTRIES addition. This technique stems from the time before joins were allowed in the FROM clause. On the other hand, it does prevent redundant data from being transferred from the database.
    Answers for your question is :
    1. If I use For all entries in inspite of loop within loop , wil it help in  increasing processing time ?? : It will Improve your performance.
    2. There is one problem in For all entries in , it is not fetching all entries but it left entries having same data so is it like that only : True it preventsredundant data from being transferred from the database.
    Hope this solves your doubt.
    Plz reward if helpful.
    Thanks,
    Dhanashri.

  • For all entries or join

    Hi,
    please which should be used between for all entries or join????

    All abap programers and most of the dba's that support abap programmers are familiar with the abap clause "for all entries". Most of the web pages I visited recently, discuss 3 major drawbacks of the "for all entries" clause:
    1. duplicate rows are automatically removed
    2. if the itab used in the clause is empty , all the rows in the source table will be selected .
    3. performance degradation when using the clause on big tables.
    In this post I'd like to shed some light on the third issue. Specifically i'll discuss the use of the "for all entries" clause as a means to join tables in the abap code instead of in db2.
    Say for example you have the following abap code:
    Select * from mara
    For all entries in itab
    Where matnr = itab-matnr.
    If the actual source of the material list (represented here by itab) is actually another database table, like:
    select matnr from mseg
    into corresponding fields of table itab
    where �.
    Then you could have used one sql statement that joins both tables.
    Select t1.*
    From mara t1, mseg t2
    Where t1.matnr = t2.matnr
    And T2�..
    So what are the drawbacks of using the "for all entires" instead of a join ?
    At run time , in order to fulfill the "for all entries " request, the abap engine will generate several sql statements (for detailed information on this refer to note 48230). Regardless of which method the engine uses (union all, "or" or "in" predicates) If the itab is bigger then a few records, the abap engine will break the itab into parts, and rerun an sql statement several times in a loop. This rerun of the same sql statement , each time with different host values, is a source of resource waste because it may lead to re-reading of data pages.
    returing to the above example , lets say that our itab contains 500 records and that the abap engine will be forced to run the following sql statement 50 times with a list of 10 values each time.
    Select * from mara
    Where matnr in ( ...)
    Db2 will be able to perform this sql statement cheaply all 50 times, using one of sap standard indexes that contain the matnr column. But in actuality, if you consider the wider picture (all 50 executions of the statement), you will see that some of the data pages, especially the root and middle-tire index pages have been re-read each execution.
    Even though db2 has mechanisms like buffer pools and sequential detection to try to minimize the i/o cost of such cases, those mechanisms can only minimize the actual i/o operations , not the cpu cost of re-reading them once they are in memory. Had you coded the join, db2 would have known that you actually need 500 rows from mara, it would have been able to use other access methods, and potentially consume less getpages i/o and cpu.
    In other words , when you use the "for all entries " clause instead of coding a join , you are depriving the database of important information needed to select the best access path for your application. Moreover, you are depriving your DBA of the same vital information. When the DBA monitors & tunes the system, he (or she) is less likely to recognize this kind of resource waste. The DBA will see a simple statement that uses an index , he is less likely to realize that this statement is executed in a loop unnecessarily.
    In conclusion I suggest to "think twice" before using the "for all entries" clause and to evaluate the use of database views as a means to:
    a. simplify sql
    b. simplify abap code
    c. get around open sql limitations.

  • Hi guru's what is the diff between for all entries & joins

    hi guru's what is the diff between for all entries & joins

    Hi Vasu,
    Joins are used to fetch data fast from Database tables:
    Tables are joined with the proper key fields to fetch the data properly.
    If there are no proper key fields between tables don't use Joins;
    Important thing is that don't USE JOINS FOR CLUSTER tableslike BSEG and KONV.
    Only use for Transparenmt tables.
    You can also use joins for the database VIews to fetch the data.
    JOINS
    ... FROM tabref1 [INNER] JOIN tabref2 ON cond
    Effect
    The data is to be selected from transparent database tables and/or views determined by tabref1 and tabref2. tabref1 and tabref2 each have the same form as in variant 1 or are themselves Join expressions. The keyword INNER does not have to be specified. The database tables or views determined by tabref1 and tabref2 must be recognized by the ABAP Dictionary.
    In a relational data structure, it is quite normal for data that belongs together to be split up across several tables to help the process of standardization (see relational databases). To regroup this information into a database query, you can link tables using the join command. This formulates conditions for the columns in the tables involved. The inner join contains all combinations of lines from the database table determined by tabref1 with lines from the table determined by tabref2, whose values together meet the logical condition (join condition) specified using ON>cond.
    Inner join between table 1 and table 2, where column D in both tables in the join condition is set the same:
    Table 1 Table 2
    A
    B
    C
    D
    D
    E
    F
    G
    H
    a1
    b1
    c1
    1
    1
    e1
    f1
    g1
    h1
    a2
    b2
    c2
    1
    3
    e2
    f2
    g2
    h2
    a3
    b3
    c3
    2
    4
    e3
    f3
    g3
    h3
    a4
    b4
    c4
    3
    |--|||--|
    Inner Join
    A
    B
    C
    D
    D
    E
    F
    G
    H
    a1
    b1
    c1
    1
    1
    e1
    f1
    g1
    h1
    a2
    b2
    c2
    1
    1
    e1
    f1
    g1
    h1
    a4
    b4
    c4
    3
    3
    e2
    f2
    g2
    h2
    |--||||||||--|
    Example
    Output a list of all flights from Frankfurt to New York between September 10th and 20th, 2001 that are not sold out:
    DATA: DATE LIKE SFLIGHT-FLDATE,
    CARRID LIKE SFLIGHT-CARRID,
    CONNID LIKE SFLIGHT-CONNID.
    SELECT FCARRID FCONNID F~FLDATE
    INTO (CARRID, CONNID, DATE)
    FROM SFLIGHT AS F INNER JOIN SPFLI AS P
    ON FCARRID = PCARRID AND
    FCONNID = PCONNID
    WHERE P~CITYFROM = 'FRANKFURT'
    AND P~CITYTO = 'NEW YORK'
    AND F~FLDATE BETWEEN '20010910' AND '20010920'
    AND FSEATSOCC < FSEATSMAX.
    WRITE: / DATE, CARRID, CONNID.
    ENDSELECT.
    If there are columns with the same name in both tables, you must distinguish between them by prefixing the field descriptor with the table name or a table alias.
    Note
    In order to determine the result of a SELECT command where the FROM clause contains a join, the database system first creates a temporary table containing the lines that meet the ON condition. The WHERE condition is then applied to the temporary table. It does not matter in an inner join whether the condition is in the ON or WHEREclause. The following example returns the same solution as the previous one.
    Example
    Output of a list of all flights from Frankfurt to New York between September 10th and 20th, 2001 that are not sold out:
    DATA: DATE LIKE SFLIGHT-FLDATE,
    CARRID LIKE SFLIGHT-CARRID,
    CONNID LIKE SFLIGHT-CONNID.
    SELECT FCARRID FCONNID F~FLDATE
    INTO (CARRID, CONNID, DATE)
    FROM SFLIGHT AS F INNER JOIN SPFLI AS P
    ON FCARRID = PCARRID
    WHERE FCONNID = PCONNID
    AND P~CITYFROM = 'FRANKFURT'
    AND P~CITYTO = 'NEW YORK'
    AND F~FLDATE BETWEEN '20010910' AND '20010920'
    AND FSEATSOCC < FSEATSMAX.
    WRITE: / DATE, CARRID, CONNID.
    ENDSELECT.
    Note
    Since not all of the database systems supported by SAP use the standard syntax for ON conditions, the syntax has been restricted. It only allows those joins that produce the same results on all of the supported database systems:
    Only a table or view may appear to the right of the JOIN operator, not another join expression.
    Only AND is possible in the ON condition as a logical operator.
    Each comparison in the ON condition must contain a field from the right-hand table.
    If an outer join occurs in the FROM clause, all the ON conditions must contain at least one "real" JOIN condition (a condition that contains a field from tabref1 amd a field from tabref2.
    Note
    In some cases, '*' may be specified in the SELECT clause, and an internal table or work area is entered into the INTO clause (instead of a list of fields). If so, the fields are written to the target area from left to right in the order in which the tables appear in the FROM clause, according to the structure of each table work area. There can then be gaps between table work areas if you use an Alignment Request. For this reason, you should define the target work area with reference to the types of the database tables, not simply by counting the total number of fields. For an example, see below:
    Variant 3
    ... FROM tabref1 LEFT [OUTER] JOIN tabref2 ON cond
    Effect
    Selects the data from the transparent database tables and/or views specified in tabref1 and tabref2. tabref1 und tabref2 both have either the same form as in variant 1 or are themselves join expressions. The keyword OUTER can be omitted. The database tables or views specified in tabref1 and tabref2 must be recognized by the ABAP-Dictionary.
    In order to determine the result of a SELECT command where the FROM clause contains a left outer join, the database system creates a temporary table containing the lines that meet the ON condition. The remaining fields from the left-hand table (tabref1) are then added to this table, and their corresponding fields from the right-hand table are filled with ZERO values. The system then applies the WHERE condition to the table.
    Left outer join between table 1 and table 2 where column D in both tables set the join condition:
    Table 1 Table 2
    A
    B
    C
    D
    D
    E
    F
    G
    H
    a1
    b1
    c1
    1
    1
    e1
    f1
    g1
    h1
    a2
    b2
    c2
    1
    3
    e2
    f2
    g2
    h2
    a3
    b3
    c3
    2
    4
    e3
    f3
    g3
    h3
    a4
    b4
    c4
    3
    |--|||--|
    Left Outer Join
    A
    B
    C
    D
    D
    E
    F
    G
    H
    a1
    b1
    c1
    1
    1
    e1
    f1
    g1
    h1
    a2
    b2
    c2
    1
    1
    e1
    f1
    g1
    h1
    a3
    b3
    c3
    2
    NULL
    NULL
    NULL
    NULL
    NULL
    a4
    b4
    c4
    3
    3
    e2
    f2
    g2
    h2
    |--||||||||--|
    Example
    Output a list of all custimers with their bookings for October 15th, 2001:
    DATA: CUSTOMER TYPE SCUSTOM,
    BOOKING TYPE SBOOK.
    SELECT SCUSTOMNAME SCUSTOMPOSTCODE SCUSTOM~CITY
    SBOOKFLDATE SBOOKCARRID SBOOKCONNID SBOOKBOOKID
    INTO (CUSTOMER-NAME, CUSTOMER-POSTCODE, CUSTOMER-CITY,
    BOOKING-FLDATE, BOOKING-CARRID, BOOKING-CONNID,
    BOOKING-BOOKID)
    FROM SCUSTOM LEFT OUTER JOIN SBOOK
    ON SCUSTOMID = SBOOKCUSTOMID AND
    SBOOK~FLDATE = '20011015'
    ORDER BY SCUSTOMNAME SBOOKFLDATE.
    WRITE: / CUSTOMER-NAME, CUSTOMER-POSTCODE, CUSTOMER-CITY,
    BOOKING-FLDATE, BOOKING-CARRID, BOOKING-CONNID,
    BOOKING-BOOKID.
    ENDSELECT.
    If there are columns with the same name in both tables, you must distinguish between them by prefixing the field descriptor with the table name or using an alias.
    Note
    For the resulting set of a SELECT command with a left outer join in the FROM clause, it is generally of crucial importance whether a logical condition is in the ON or WHERE condition. Since not all of the database systems supported by SAP themselves support the standard syntax and semantics of the left outer join, the syntax has been restricted to those cases that return the same solution in all database systems:
    Only a table or view may come after the JOIN operator, not another join statement.
    The only logical operator allowed in the ON condition is AND.
    Each comparison in the ON condition must contain a field from the right-hand table.
    Comparisons in the WHERE condition must not contain a field from the right-hand table.
    The ON condition must contain at least one "real" JOIN condition (a condition in which a field from tabref1 as well as from tabref2 occurs).
    Note
    In some cases, '*' may be specivied as the field list in the SELECT clause, and an internal table or work area is entered in the INTO clause (instead of a list of fields). If so, the fields are written to the target area from left to right in the order in which the tables appear in the llen in der FROM clause, according to the structure of each table work area. There can be gaps between the table work areas if you use an Alignment Request. For this reason, you should define the target work area with reference to the types of the database tables, as in the following example (not simply by counting the total number of fields).
    Example
    Example of a JOIN with more than two tables: Select all flights from Frankfurt to New York between September 10th and 20th, 2001 where there are available places, and display the name of the airline.
    DATA: BEGIN OF WA,
    FLIGHT TYPE SFLIGHT,
    PFLI TYPE SPFLI,
    CARR TYPE SCARR,
    END OF WA.
    SELECT * INTO WA
    FROM ( SFLIGHT AS F INNER JOIN SPFLI AS P
    ON FCARRID = PCARRID AND
    FCONNID = PCONNID )
    INNER JOIN SCARR AS C
    ON FCARRID = CCARRID
    WHERE P~CITYFROM = 'FRANKFURT'
    AND P~CITYTO = 'NEW YORK'
    AND F~FLDATE BETWEEN '20010910' AND '20010920'
    AND FSEATSOCC < FSEATSMAX.
    WRITE: / WA-CARR-CARRNAME, WA-FLIGHT-FLDATE, WA-FLIGHT-CARRID,
    WA-FLIGHT-CONNID.
    ENDSELECT.
    And for all entries,
    this will help u.
    use of FOR ALL ENTRIES:
    1. INNER JOIN
    DBTAB1 <----
    > DBTAB2
    It is used to JOIN two DATABASE tables
    having some COMMON fields.
    2. Whereas
    For All Entries,
    DBTAB1 <----
    > ITAB1
    is not at all related to two DATABASE tables.
    It is related to INTERNAL table.
    3. If we want to fetch data
    from some DBTABLE1
    but we want to fetch
    for only some records
    which are contained in some internal table,
    then we use for alll entries.
    1. simple example of for all entries.
    2. NOTE THAT
    In for all entries,
    it is NOT necessary to use TWO DBTABLES.
    (as against JOIN)
    3. use this program (just copy paste)
    it will fetch data
    from T001
    FOR ONLY TWO COMPANIES (as mentioned in itab)
    4
    REPORT abc.
    DATA : BEGIN OF itab OCCURS 0,
    bukrs LIKE t001-bukrs,
    END OF itab.
    DATA : t001 LIKE TABLE OF t001 WITH HEADER LINE.
    itab-bukrs = '1000'.
    APPEND itab.
    itab-bukrs = '1100'.
    APPEND itab.
    SELECT * FROM t001
    INTO TABLE t001
    FOR ALL ENTRIES IN itab
    WHERE bukrs = itab-bukrs.
    LOOP AT t001.
    WRITE :/ t001-bukrs.
    ENDLOOP.
    cheers,
    Hema.

  • CAN USE SELECT OPTION FIELD IN FOR ALL ENTRIES CONCEPT

    Hi sir/ madam,
    can i write code like this .
    i have data in itab1 .
    select-options : s_matnr like lips-matnr.
    SELECT VBELN VGBEL VGPOS MATNR
        FROM LIPS
        INTO TABLE I_LIPS
        FOR ALL ENTRIES IN ITAB1
        WHERE VBELN = ITAB1-VBELN AND
              MATNR = S_MATNR.
    Thanks & Regards
    Suresh kumar

    Hi Suresh,
    To correct ur code syntactically, repacle the
    =
    operator with
    IN
    . This may be correct but from data consistency point of view this may not be the ideal thing to do.
    You can foolow thw following steps:
    1. Fetch data in ITAB1 using the MATNR in the select-option. I hope you do have
    MATNR in ITAB1.
    2.
    SELECT VBELN VGBEL VGPOS MATNR
    FROM LIPS
    INTO TABLE I_LIPS
    FOR ALL ENTRIES IN ITAB1
    WHERE VBELN = ITAB1-VBELN AND
    MATNR = ITAB1-MATNR.
    This should be correct form data consistency view-point.
    Hope this answers ur query. Please award points if u find the answer helpful.
    Regards,
    Suhas

  • Doubt regarding FOR ALL ENTRIES and INDEXES

    Hi iam Aslam ..
    and i have a  doubt  ..regrding .. .
    1)   what are  the  disadvs of using FOR ALL ENTRIES
    2)  what are the disadvs of using INDEXES
    3)    what is the  disadvs of  using  Binary search ..
    4) . how can u do performance tuning ...if u have    more than one SELECT  statements  between ... Loop and Endloop .......
    please answer to these   questions   or  reply me to [email protected] ..
    thanks  in advance ..
    bye

    HI
    <b>1) what are the disadvs of using FOR ALL ENTRIES</b>
    if there is no data available for you condition mentioned in the where condition then it will retrive all the data from the database table , which we don't want , but we can solve that easily
    Ways of Performance Tuning
    1.     Selection Criteria
    2.     Select Statements
    •     Select Queries
    •     SQL Interface
    •     Aggregate Functions
    •     For all Entries
    Select Over more than one Internal table
    Selection Criteria
    1.     Restrict the data to the selection criteria itself, rather than filtering it out using the ABAP code using CHECK statement. 
    2.     Select with selection list.
    Points # 1/2
    SELECT * FROM SBOOK INTO SBOOK_WA.
      CHECK: SBOOK_WA-CARRID = 'LH' AND
             SBOOK_WA-CONNID = '0400'.
    ENDSELECT.
    The above code can be much more optimized by the code written below which avoids CHECK, selects with selection list
    SELECT  CARRID CONNID FLDATE BOOKID FROM SBOOK INTO TABLE T_SBOOK
      WHERE SBOOK_WA-CARRID = 'LH' AND
                  SBOOK_WA-CONNID = '0400'.
    Select Statements   Select Queries
    1.     Avoid nested selects
    2.     Select all the records in a single shot using into table clause of select statement rather than to use Append statements.
    3.     When a base table has multiple indices, the where clause should be in the order of the index, either a primary or a secondary index.
    4.     For testing existence , use Select.. Up to 1 rows statement instead of a Select-Endselect-loop with an Exit. 
    5.     Use Select Single if all primary key fields are supplied in the Where condition .
    Point # 1
    SELECT * FROM EKKO INTO EKKO_WA.
      SELECT * FROM EKAN INTO EKAN_WA
          WHERE EBELN = EKKO_WA-EBELN.
      ENDSELECT.
    ENDSELECT.
    The above code can be much more optimized by the code written below.
    SELECT PF1 PF2 FF3 FF4 INTO TABLE ITAB
        FROM EKKO AS P INNER JOIN EKAN AS F
          ON PEBELN = FEBELN.
    Note: A simple SELECT loop is a single database access whose result is passed to the ABAP program line by line. Nested SELECT loops mean that the number of accesses in the inner loop is multiplied by the number of accesses in the outer loop. One should therefore use nested SELECT loops  only if the selection in the outer loop contains very few lines or the outer loop is a SELECT SINGLE statement.
    Point # 2
    SELECT * FROM SBOOK INTO SBOOK_WA.
      CHECK: SBOOK_WA-CARRID = 'LH' AND
             SBOOK_WA-CONNID = '0400'.
    ENDSELECT.
    The above code can be much more optimized by the code written below which avoids CHECK, selects with selection list and puts the data in one shot using into table
    SELECT  CARRID CONNID FLDATE BOOKID FROM SBOOK INTO TABLE T_SBOOK
      WHERE SBOOK_WA-CARRID = 'LH' AND
                  SBOOK_WA-CONNID = '0400'.
    Point # 3
    To choose an index, the optimizer checks the field names specified in the where clause and then uses an index that has the same order of the fields . In certain scenarios, it is advisable to check whether a new index can speed up the performance of a program. This will come handy in programs that access data from the finance tables.
    Point # 4
    SELECT * FROM SBOOK INTO SBOOK_WA
      UP TO 1 ROWS
      WHERE CARRID = 'LH'.
    ENDSELECT.
    The above code is more optimized as compared to the code mentioned below for testing existence of a record.
    SELECT * FROM SBOOK INTO SBOOK_WA
        WHERE CARRID = 'LH'.
      EXIT.
    ENDSELECT.
    Point # 5
    If all primary key fields are supplied in the Where condition you can even use Select Single.
    Select Single requires one communication with the database system, whereas Select-Endselect needs two.
    Select Statements           contd..  SQL Interface
    1.     Use column updates instead of single-row updates
    to update your database tables.
    2.     For all frequently used Select statements, try to use an index.
    3.     Using buffered tables improves the performance considerably.
    Point # 1
    SELECT * FROM SFLIGHT INTO SFLIGHT_WA.
      SFLIGHT_WA-SEATSOCC =
        SFLIGHT_WA-SEATSOCC - 1.
      UPDATE SFLIGHT FROM SFLIGHT_WA.
    ENDSELECT.
    The above mentioned code can be more optimized by using the following code
    UPDATE SFLIGHT
           SET SEATSOCC = SEATSOCC - 1.
    Point # 2
    SELECT * FROM SBOOK CLIENT SPECIFIED INTO SBOOK_WA
      WHERE CARRID = 'LH'
        AND CONNID = '0400'.
    ENDSELECT.
    The above mentioned code can be more optimized by using the following code
    SELECT * FROM SBOOK CLIENT SPECIFIED INTO SBOOK_WA
      WHERE MANDT IN ( SELECT MANDT FROM T000 )
        AND CARRID = 'LH'
        AND CONNID = '0400'.
    ENDSELECT.
    Point # 3
    Bypassing the buffer increases the network considerably
    SELECT SINGLE * FROM T100 INTO T100_WA
      BYPASSING BUFFER
      WHERE     SPRSL = 'D'
            AND ARBGB = '00'
            AND MSGNR = '999'.
    The above mentioned code can be more optimized by using the following code
    SELECT SINGLE * FROM T100  INTO T100_WA
      WHERE     SPRSL = 'D'
            AND ARBGB = '00'
            AND MSGNR = '999'.
    Select Statements       contd…           Aggregate Functions
    •     If you want to find the maximum, minimum, sum and average value or the count of a database column, use a select list with aggregate functions instead of computing the aggregates yourself.
    Some of the Aggregate functions allowed in SAP are  MAX, MIN, AVG, SUM, COUNT, COUNT( * )
    Consider the following extract.
                Maxno = 0.
                Select * from zflight where airln = ‘LF’ and cntry = ‘IN’.
                 Check zflight-fligh > maxno.
                 Maxno = zflight-fligh.
                Endselect.
    The  above mentioned code can be much more optimized by using the following code.
    Select max( fligh ) from zflight into maxno where airln = ‘LF’ and cntry = ‘IN’.
    Select Statements    contd…For All Entries
    •     The for all entries creates a where clause, where all the entries in the driver table are combined with OR. If the number of entries in the driver table is larger than rsdb/max_blocking_factor, several similar SQL statements are executed to limit the length of the WHERE clause.
         The plus
    •     Large amount of data
    •     Mixing processing and reading of data
    •     Fast internal reprocessing of data
    •     Fast
         The Minus
    •     Difficult to program/understand
    •     Memory could be critical (use FREE or PACKAGE size)
    Points to be must considered FOR ALL ENTRIES
    •     Check that data is present in the driver table
    •     Sorting the driver table
    •     Removing duplicates from the driver table
    Consider the following piece of extract
    Loop at int_cntry.
           Select single * from zfligh into int_fligh
    where cntry = int_cntry-cntry.
    Append int_fligh.
    Endloop.
    The above mentioned can be more optimized by using the following code.
    Sort int_cntry by cntry.
    Delete adjacent duplicates from int_cntry.
    If NOT int_cntry[] is INITIAL.
                Select * from zfligh appending table int_fligh
                For all entries in int_cntry
                Where cntry = int_cntry-cntry.
    Endif.
    Select Statements    contd…  Select Over more than one Internal table
    1.     Its better to use a views instead of nested Select statements.
    2.     To read data from several logically connected tables use a join instead of nested Select statements. Joins are preferred only if all the primary key are available in WHERE clause for the tables that are joined. If the primary keys are not provided in join the Joining of tables itself takes time.
    3.     Instead of using nested Select loops it is often better to use subqueries.
    Point # 1
    SELECT * FROM DD01L INTO DD01L_WA
      WHERE DOMNAME LIKE 'CHAR%'
            AND AS4LOCAL = 'A'.
      SELECT SINGLE * FROM DD01T INTO DD01T_WA
        WHERE   DOMNAME    = DD01L_WA-DOMNAME
            AND AS4LOCAL   = 'A'
            AND AS4VERS    = DD01L_WA-AS4VERS
            AND DDLANGUAGE = SY-LANGU.
    ENDSELECT.
    The above code can be more optimized by extracting all the data from view DD01V_WA
    SELECT * FROM DD01V INTO  DD01V_WA
      WHERE DOMNAME LIKE 'CHAR%'
            AND DDLANGUAGE = SY-LANGU.
    ENDSELECT
    Point # 2
    SELECT * FROM EKKO INTO EKKO_WA.
      SELECT * FROM EKAN INTO EKAN_WA
          WHERE EBELN = EKKO_WA-EBELN.
      ENDSELECT.
    ENDSELECT.
    The above code can be much more optimized by the code written below.
    SELECT PF1 PF2 FF3 FF4 INTO TABLE ITAB
        FROM EKKO AS P INNER JOIN EKAN AS F
          ON PEBELN = FEBELN.
    Point # 3
    SELECT * FROM SPFLI
      INTO TABLE T_SPFLI
      WHERE CITYFROM = 'FRANKFURT'
        AND CITYTO = 'NEW YORK'.
    SELECT * FROM SFLIGHT AS F
        INTO SFLIGHT_WA
        FOR ALL ENTRIES IN T_SPFLI
        WHERE SEATSOCC < F~SEATSMAX
          AND CARRID = T_SPFLI-CARRID
          AND CONNID = T_SPFLI-CONNID
          AND FLDATE BETWEEN '19990101' AND '19990331'.
    ENDSELECT.
    The above mentioned code can be even more optimized by using subqueries instead of for all entries.
    SELECT * FROM SFLIGHT AS F INTO SFLIGHT_WA
        WHERE SEATSOCC < F~SEATSMAX
          AND EXISTS ( SELECT * FROM SPFLI
                         WHERE CARRID = F~CARRID
                           AND CONNID = F~CONNID
                           AND CITYFROM = 'FRANKFURT'
                           AND CITYTO = 'NEW YORK' )
          AND FLDATE BETWEEN '19990101' AND '19990331'.
    ENDSELECT.
    1.     Table operations should be done using explicit work areas rather than via header lines.
    2.     Always try to use binary search instead of linear search. But don’t forget to sort your internal table before that.
    3.     A dynamic key access is slower than a static one, since the key specification must be evaluated at runtime.
    4.     A binary search using secondary index takes considerably less time.
    5.     LOOP ... WHERE is faster than LOOP/CHECK because LOOP ... WHERE evaluates the specified condition internally.
    6.     Modifying selected components using “ MODIFY itab …TRANSPORTING f1 f2.. “ accelerates the task of updating  a line of an internal table.
    Point # 2
    READ TABLE ITAB INTO WA WITH KEY K = 'X‘ BINARY SEARCH.
    IS MUCH FASTER THAN USING
    READ TABLE ITAB INTO WA WITH KEY K = 'X'.
    If TAB has n entries, linear search runs in O( n ) time, whereas binary search takes only O( log2( n ) ).
    Point # 3
    READ TABLE ITAB INTO WA WITH KEY K = 'X'. IS FASTER THAN USING
    READ TABLE ITAB INTO WA WITH KEY (NAME) = 'X'.
    Point # 5
    LOOP AT ITAB INTO WA WHERE K = 'X'.
    ENDLOOP.
    The above code is much faster than using
    LOOP AT ITAB INTO WA.
      CHECK WA-K = 'X'.
    ENDLOOP.
    Point # 6
    WA-DATE = SY-DATUM.
    MODIFY ITAB FROM WA INDEX 1 TRANSPORTING DATE.
    The above code is more optimized as compared to
    WA-DATE = SY-DATUM.
    MODIFY ITAB FROM WA INDEX 1.
    7.     Accessing the table entries directly in a "LOOP ... ASSIGNING ..." accelerates the task of updating a set of lines of an internal table considerably
    8.    If collect semantics is required, it is always better to use to COLLECT rather than READ BINARY and then ADD.
    9.    "APPEND LINES OF itab1 TO itab2" accelerates the task of appending a table to another table considerably as compared to “ LOOP-APPEND-ENDLOOP.”
    10.   “DELETE ADJACENT DUPLICATES“ accelerates the task of deleting duplicate entries considerably as compared to “ READ-LOOP-DELETE-ENDLOOP”.
    11.   "DELETE itab FROM ... TO ..." accelerates the task of deleting a sequence of lines considerably as compared to “  DO -DELETE-ENDDO”.
    Point # 7
    Modifying selected components only makes the program faster as compared to Modifying all lines completely.
    e.g,
    LOOP AT ITAB ASSIGNING <WA>.
      I = SY-TABIX MOD 2.
      IF I = 0.
        <WA>-FLAG = 'X'.
      ENDIF.
    ENDLOOP.
    The above code works faster as compared to
    LOOP AT ITAB INTO WA.
      I = SY-TABIX MOD 2.
      IF I = 0.
        WA-FLAG = 'X'.
        MODIFY ITAB FROM WA.
      ENDIF.
    ENDLOOP.
    Point # 8
    LOOP AT ITAB1 INTO WA1.
      READ TABLE ITAB2 INTO WA2 WITH KEY K = WA1-K BINARY SEARCH.
      IF SY-SUBRC = 0.
        ADD: WA1-VAL1 TO WA2-VAL1,
             WA1-VAL2 TO WA2-VAL2.
        MODIFY ITAB2 FROM WA2 INDEX SY-TABIX TRANSPORTING VAL1 VAL2.
      ELSE.
        INSERT WA1 INTO ITAB2 INDEX SY-TABIX.
      ENDIF.
    ENDLOOP.
    The above code uses BINARY SEARCH for collect semantics. READ BINARY runs in O( log2(n) ) time. The above piece of code can be more optimized by
    LOOP AT ITAB1 INTO WA.
      COLLECT WA INTO ITAB2.
    ENDLOOP.
    SORT ITAB2 BY K.
    COLLECT, however, uses a hash algorithm and is therefore independent
    of the number of entries (i.e. O(1)) .
    Point # 9
    APPEND LINES OF ITAB1 TO ITAB2.
    This is more optimized as compared to
    LOOP AT ITAB1 INTO WA.
      APPEND WA TO ITAB2.
    ENDLOOP.
    Point # 10
    DELETE ADJACENT DUPLICATES FROM ITAB COMPARING K.
    This is much more optimized as compared to
    READ TABLE ITAB INDEX 1 INTO PREV_LINE.
    LOOP AT ITAB FROM 2 INTO WA.
      IF WA = PREV_LINE.
        DELETE ITAB.
      ELSE.
        PREV_LINE = WA.
      ENDIF.
    ENDLOOP.
    Point # 11
    DELETE ITAB FROM 450 TO 550.
    This is much more optimized as compared to
    DO 101 TIMES.
      DELETE ITAB INDEX 450.
    ENDDO.
    12.   Copying internal tables by using “ITAB2[ ] = ITAB1[ ]” as compared to “LOOP-APPEND-ENDLOOP”.
    13.   Specify the sort key as restrictively as possible to run the program faster.
    Point # 12
    ITAB2[] = ITAB1[].
    This is much more optimized as compared to
    REFRESH ITAB2.
    LOOP AT ITAB1 INTO WA.
      APPEND WA TO ITAB2.
    ENDLOOP.
    Point # 13
    “SORT ITAB BY K.” makes the program runs faster as compared to “SORT ITAB.”
    Internal Tables         contd…
    Hashed and Sorted tables
    1.     For single read access hashed tables are more optimized as compared to sorted tables.
    2.      For partial sequential access sorted tables are more optimized as compared to hashed tables
    Hashed And Sorted Tables
    Point # 1
    Consider the following example where HTAB is a hashed table and STAB is a sorted table
    DO 250 TIMES.
      N = 4 * SY-INDEX.
      READ TABLE HTAB INTO WA WITH TABLE KEY K = N.
      IF SY-SUBRC = 0.
      ENDIF.
    ENDDO.
    This runs faster for single read access as compared to the following same code for sorted table
    DO 250 TIMES.
      N = 4 * SY-INDEX.
      READ TABLE STAB INTO WA WITH TABLE KEY K = N.
      IF SY-SUBRC = 0.
      ENDIF.
    ENDDO.
    Point # 2
    Similarly for Partial Sequential access the STAB runs faster as compared to HTAB
    LOOP AT STAB INTO WA WHERE K = SUBKEY.
    ENDLOOP.
    This runs faster as compared to
    LOOP AT HTAB INTO WA WHERE K = SUBKEY.
    ENDLOOP.

  • Unable to Get the Data Using For All Entries

    Hi everybody, i am using for all entries in a program. but when i am writing a code using for all entries i am getting an error as 
    Where condition does not refers to the FOR ALL ENTRIES tables...
    SELECT KUNNR
           NAME1
           ORT01
           LAND1
       FROM KNA1 INTO TABLE ITAB1 WHERE KUNNR IN S_KUNNR.
    IF NOT ITAB1 IS INITIAL.
    SELECT VBELN
            ERDAT
            KUNNR
       FROM VBAK INTO TABLE ITAB2 FOR ALL ENTRIES IN ITAB1 WHERE KUNNR = IT_KNA1-KUNNR.
    ENDIF.
    can anybody help out in this
    regards
    hyder ali

    The correct one may be like this:
    SELECT KUNNR
    NAME1
    ORT01
    LAND1
    FROM KNA1 INTO TABLE ITAB1 WHERE KUNNR IN S_KUNNR.
    IF NOT ITAB1 IS INITIAL.
    SELECT VBELN
    ERDAT
    KUNNR
    FROM VBAK INTO TABLE ITAB2 FOR ALL ENTRIES IN ITAB1 WHERE KUNNR = ITAB1-KUNNR. "modified here
    ENDIF.
    Edited by: XuJian84 on Mar 9, 2010 4:25 AM

  • What is the usage of for all entries ?

    What is the Usage of read table  after using for all entries ?
    In the following example what exactly it is doing ?
      Usage of 'for all entries' in Select Statement
    FORM data_retrieval.
      DATA: ld_color(1) TYPE c.
      DATA: BEGIN OF T_VBAP OCCURS 0,
            VBELN  LIKE VBAP-VBELN,
            MATNR  LIKE VBAP-MATNR,
            POSNR  LIKE VBAP-POSNR,
            END OF T_VBAP.
      DATA: BEGIN OF T_VBFA OCCURS 0,
            VBELV  LIKE VBFA-VBELV,
            VBELN  LIKE VBFA-VBELN,
            VBTYP_N  LIKE VBFA-VBTYP_N,
            END OF T_VBFA.
      DATA: BEGIN OF T_VBAK OCCURS 0,
            VBELN  LIKE VBAK-VBELN,
            IHREZ  LIKE VBAK-IHREZ,
            END OF T_VBAK.
      DATA: BEGIN OF T_KNA1 OCCURS 0,
            KUNNR  LIKE KNA1-KUNNR,
            NAME1  LIKE KNA1-NAME1,
            END OF T_KNA1.
       DATA: BEGIN OF T_MAKT OCCURS 0,
            MATNR  LIKE MAKT-MATNR,
            MAKTX  LIKE MAKT-MAKTX,
            END OF T_MAKT.
      SELECT likpvbeln likplifex likpbldat likpwadat likpwadat_ist likpkodat likp~lfart
             likpkunnr likpvstel lipsposnv lipslfimg lipsvrkme lipslgmng lips~meins
             lipswerks lipslgort lipscharg lipsvbelv lipsposnr lipsmatnr
             lipsvbeln LIPSVGBEL LIPSVGPOS vbupkosta vbupwbsta vbupposnr vbup~vbeln
              VBAKIHREZ VBAKVBELN VBAP~VBELN
         INTO CORRESPONDING FIELDS OF TABLE  it_itab
        FROM ( likp
               INNER JOIN lips
               ON  lipsvbeln = likpvbeln
               INNER JOIN vbup
               ON  vbupposnr = lipsposnr
               and VBUPVBELN = LIPSVBELN )
              left outer join VBAK
              on  VBAKVBELN = LIPSVGBEL
              inner join VBAP
              on  VBAPVBELN = VBAKVBELN )
             WHERE likp~vbeln IN so_vbeln
               AND likp~lifex IN so_lifex
               AND likp~lfart IN so_lfart
               AND likp~kunnr IN so_kunnr
               AND likp~vstel IN so_vstel
               AND likp~bldat IN so_bldat
               AND likp~wadat_ist IN so_wadat
               AND vbup~kosta IN so_kosta
               AND vbup~wbsta IN so_wbsta
               AND LIPS~LFIMG NE 0.
      SELECT VBELN IHREZ INTO TABLE T_VBAK
      FROM VBAK
      FOR ALL ENTRIES IN  IT_ITAB
      WHERE VBELN = IT_ITAB-VGBEL.
    APPEND T_VBAK.
    ENDSELECT.
      SELECT VBELN MATNR POSNR INTO TABLE T_VBAP
      FROM VBAP
      FOR ALL ENTRIES IN  IT_ITAB
      WHERE VBELN = IT_ITAB-VGBEL AND
            MATNR = IT_ITAB-MATNR AND
            POSNR = IT_ITAB-VGPOS.
    APPEND T_VBAP.
    ENDSELECT.
      SELECT VBELV VBELN VBTYP_N INTO TABLE T_VBFA
      FROM VBFA
      FOR ALL ENTRIES IN  IT_ITAB
      WHERE VBELV = IT_ITAB-VBELN AND
            VBTYP_N = 'M' .
      SELECT KUNNR NAME1 INTO TABLE T_KNA1
      FROM KNA1
      FOR ALL ENTRIES IN IT_ITAB
      WHERE KUNNR = IT_ITAB-KUNNR.
    APPEND T_KNA1.
    ENDSELECT.
      SELECT MATNR MAKTX INTO TABLE T_MAKT
      FROM MAKT
      FOR ALL ENTRIES IN IT_ITAB
      WHERE MATNR = IT_ITAB-MATNR.
    APPEND T_MAKT.
    ENDSELECT.
    *Populate field with color attributes
      LOOP AT it_itab INTO wa_ITAB.
    Populate color variable with colour properties
    Char 1 = C (This is a color property)
    Char 2 = 3 (Color codes: 1 - 7)
    Char 3 = Intensified on/off ( 1 or 0 )
    Char 4 = Inverse display on/off ( 1 or 0 )
    i.e. wa_ekko-line_color = 'C410'
        REFRESH color.
        colourize 'VBELN' 0. " .
        WA_ITAB-farbe = color[].
        ld_color = ld_color + 1.
    Only 7 colours so need to reset color value
        IF ld_color = 3. "8
          ld_color = 1.
        ENDIF.
        CONCATENATE 'C' ld_color '10' INTO wa_ITAB-line_color.
        WA_ITAB-NAME1 = ''.
        WA_ITAB-MAKTX = ''.
        WA_ITAB-IHREZ = ''.
        WA_ITAB-VBELV = ''.
        READ TABLE T_KNA1 WITH KEY KUNNR = WA_ITAB-KUNNR.
        IF SY-SUBRC = 0.
           WA_ITAB-NAME1 = T_KNA1-NAME1.
        ENDIF.
        READ TABLE T_MAKT WITH KEY MATNR = WA_ITAB-MATNR.
        IF SY-SUBRC = 0.
        WA_ITAB-MAKTX = T_MAKT-MAKTX.
        ENDIF.
        READ TABLE T_VBAK WITH KEY VBELN = WA_ITAB-VGBEL.
        IF SY-SUBRC = 0.
        WA_ITAB-IHREZ = T_VBAK-IHREZ.
        ENDIF.
        READ TABLE T_VBFA WITH KEY VBELV = WA_ITAB-VBELN.
        IF SY-SUBRC = 0.
        WA_ITAB-VBELVA = T_VBFA-VBELN.
        ENDIF.
       READ TABLE T_VBAP WITH KEY VBELN = WA_ITAB-VGBEL
                                  POSNR = WA_ITAB-VGPOS
                                  MATNR = WA_ITAB-MATNR.
       IF SY-SUBRC = 0.
       WA_ITAB-IHREZ = T_VBAK-IHREZ.
       ENDIF.
    wa_ekko-line_color = 'C410'.
        MODIFY it_itab FROM wa_itab.
      ENDLOOP.
    ENDFORM. " data_retrieval

    hi Jyotirmoy,
    The explanation below can give u an idea of wat is going in ur code..
    Use of FOR ALL Entries
    Outer join can be created using this addition to the where clause in a select statement. It speeds up the performance tremendously, but the cons of using this variation are listed below
    Duplicates are automatically removed from the resulting data set. Hence care should be taken that the unique key of the detail line items should be given in the select statement.
    If the table on which the For All Entries IN clause is based is empty, all rows are selected into the destination table. Hence it is advisable to check before-hand that the first table is not empty.
    If the table on which the For All Entries IN clause is based is very large, the performance will go down instead of improving. Hence attempt should be made to keep the table size to a moderate level.
    Not Recommended
                Loop at int_cntry.
                 Select single * from zfligh into int_fligh
                 where cntry = int_cntry-cntry.
                 Append int_fligh.
                Endloop.
    Recommended
                Select * from zfligh appending table int_fligh
                For all entries in int_cntry
                Where cntry = int_cntry-cntry.
    Thankyou,
    Regards.

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