Maximun number of selections for rscrm_bapi

Hi all,
I'm using to exctract a query in CSV format rscrm_bapi transaction.
The query contains a customer exit variable to populate a list of customers reading from a DSO.
Everything works well if the number customers is low, but when I load in DSO about 15000 records, rscrm_bapi transaction dumps wiyh error SAPSQL_ARRAY_INSERT_DUPREC exception CX_SY_OPEN_SQL_DB.
Anyone knows how to bypass this limitation or what is the maximum numers of selections I can enter?
The strange stuff is that same query works very well if used in analyzer or web.
Thanks a lot

Hi,
Check note 196113 it contains the solution to your problem.
Most of the time this issue is due to a mismatch between the last assigned log number in table BALHDR and the one in the number range object
Santosh

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Determine number of selected channels for traditional DAQ

The blocks of "DAQmx Task" and "traditional DAQ Channel" look quite similar (see attachments). The DAQmx block ist an individual selection of channels and I am able to determine the number of selected channels.
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Message Edited by pgraebel on 07-21-2009 11:31 AM
Solved!
Go to Solution.
Attachments:
DAQ.png ‏2 KB
DAQ_frontpanel.png ‏5 KB

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============
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=============
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refer below screen shot:
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Need a single point of view on date selections for Delta and Full load IP's

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Hi
Persistent through module RSSM_SHIP_PSEUDO_DVERSION_WRI
Primary table RSLDPIOSH
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RSLDPIOT InfoPackage Text Description
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http://help.sap.com/saphelp_nw70/helpdata/en/2e/20d704d45be7458582cdfcc5487090/frameset.htm
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Maximum number of selections in an info package

Hi friends,
i want to load an ODS with data from MSEG. Due to the great number of records I've to select by
0ATERIAL. Selection criteria are provided by a routine I'll write for this selection, reading a different
ODS. Estimated number of records for selection is about 80,000.
My question:
Is there any restriction regarding the number of selection criteria of an Infoobject in info packages?
Will a selection work with 80,000 criteria?
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Joe

Hello,
If I understood correctly...you will compare the values from a DSO and then pass these values in the infopackage selections..
but how are you planning to do it...will it be interval or single value??
Also I think you can assign only one value or range in the infopackage at a time for selection through routine...
More the number of selections more the number of AND in the where clause.
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Select for all entries

Hi,
      I am new in abap reports. Now i want to know why we should use select for all entries in query. We can do retrieve directly by accessing the table in database dictionary.
      Experts please give me the reasons I want to know the concepts behind it.It will be better if you kindly explain this with help of code.
     With regards,
       Abir.

HI
GOOD
SELECT
Basic form
SELECT result [target] FROM source [where] [GROUP BY fields] [ORDER BY order].
Effect
Retrieves an extract and/or a set of data from a database table or view (see Relational database ). SELECT belongs to the OPEN SQL command set.
Each SELECT command consists of a series of clauses specifying different tasks:
The SELECT result clause specifies
whether the result of the selection is a table or a single record,
which columns the result is meant to have and
whether the result is allowed to include identical lines.
The INTO target clause specifies the target area into which the selected data is to be read. If the target area is an internal table, the INTO clause specifies
whether the selected data is to overwrite the contents of the internal table or
whether the selected data is to be appended to the contents and
whether the selected data is to be placed in the internal table all at once or in several packets.
The INTO clause can also follow the FROM clause.
You can omit the INTO clause. The system then makes the data available in the table work area (see TABLES ) dbtab . If the SELECT clause includes a "*", the command is processed like the identical SELECT * INTO dbtab FROM dbtab statement. If the SELECT clause contains a list a1 ... an , the command is executed like SELECT a1 ... an INTO CORRESPONDING FIELDS OF dbtab FROM dbtab .
If the result of the selection is meant to be a table, the data is usually (for further information, see INTO -Klausel ) read line by line within a processing loop introduced by SELECT and concluded by ENDSELECT . For each line read, the processing passes through the loop once. If the result of the selection is meant to be a single record, the closing ENDSELECT is omitted.
The FROM source clause the source (database table or view ) from which the data is to be selected. It also determines
the type of client handling,
the behavior for buffered tables and
the maximum number of lines to be read.
The WHERE where clause specifies the conditions which the result of the selection must satisfy. It thus determines the lines of the result table. Normally - i.e. unless a client field is specified in the WHERE clause - only data of the current client is selected. If you want to select across other clients, the FROM clause must include the addition ... CLIENT SPECIFIED .
The GROUP-BY fields clause combines groups of lines together into single lines. A group is a set of lines which contain the same value for every database field in the GROUP BY clause.
The ORDER-BY order clause stipulates how the lines of the result table are to be ordered.
Each time the SELECT statement is executed, the system field SY-DBCNT contains the number of lines read so far. After ENDSELECT , SY-DBCNT contains the total number of lines read.
The return code value is set as follows:
SY-SUBRC = 0 At least one line was read.
SY_SUBRC = 4 No lines were read.
SY-SUBRC = 8 The search key was not fully qualified.
(nur bei SELECT SINGLE ). The returned single record is any line of the solution set.
Example
Output the passenger list for the Lufthansa flight 0400 on 28.02.1995:
TABLES SBOOK.
SELECT * FROM SBOOK
WHERE
    CARRID   = 'LH '      AND
    CONNID   = '0400'     AND
    FLDATE   = '19950228'
ORDER BY PRIMARY KEY.
WRITE: / SBOOK-BOOKID, SBOOK-CUSTOMID,   SBOOK-CUSTTYPE,
           SBOOK-SMOKER, SBOOK-LUGGWEIGHT, SBOOK-WUNIT,
           SBOOK-INVOICE.
ENDSELECT.
Note
Performance
In client/server environments, storing database tables in local buffers (see SAP buffering ) can save considerable amounts of time because the time required to make an access via the network is much more than that needed to access a locally buffered table.
Notes
A SELECT command on a table for which SAP buffering is defined in the ABAP/4 Dictionary is normally satisfied from the SAP buffer by bypassing the database. This does not apply with
- SELECT SINGLE FOR UPDATE
- SELECT DISTINCT in the SELECT clause ,
- BYPASSING BUFFER in the FROM clause ,
- ORDER BY f1 ... fn in the ORDER-BY clause ,
- aggregate functions in the SELECT clause ,
- when using IS [NOT] NULL WHERE condition ,
or if the generic key part is not qualified in the WHERE-Bedingung for a generically buffered table.
Authorization checks are not supported by the SELECT statement, so you must program these yourself.
In dialog systems, the database system locking mechanism cannot always guarantee to synchronize the simultaneous access of several users to the same dataset. In many cases, it is therefore advisable to use the SAP locking mechanism .
Changes to data in a database are only finalized after a database commit (see LUW ). Prior to this, any database update can be reversed by a database rollback (see Programming transactions ). At the lowest isolation level (see the section on the "uncommitted read" under Locking mechanism ), this can result in the dataset selected by the SELECT command not really being written to the database. While a program is selecting data, a second program can add, change or delete lines at the same time. Then, the changes made by the second program are reversed by rolling back the database system. The selection of the first program thus reflects only a very temporary state of the database. If such "phantom data" is not acceptable for a program, you must either use the SAP locking mechanism or at least set the isolation level of the database system to "committed read" (see Locking mechanism ).
In a SELECT-ENDSELECT loop, the CONTINUE statement terminates the current loop pass prematurely and starts the next.
If one of the statements in a SELECT ... ENDSELECT loop results in a database commit, the cursor belonging to the SELECT ... ENDSELECT loop is lost and the processing terminates with a runtime error. Since each screen change automatically generates a database commit, statements such as CALL SCREEN , CALL DIALOG , CALL TRANSACTION or MESSAGE are not allowed within a SELECT ... ENDSELECT loop.
Related OPEN CURSOR , FETCH und CLOSE CURSOR
GO THROUGH THIS LINK
http://www.geocities.com/SiliconValley/Campus/6345/select.htm
THANKS
MRUTYUN

How does the CBO calculate the selectivity for range predicates on ROWID ?

Hi all,
I'm wondering how the CBO estimate the selectivity for range predicates based on ROWID columns.
For example, for the following query the CBO estimates there's going to be 35004 rows returned instead of 7:
SQL> SELECT count(*)
FROM intsfi i
WHERE
ROWID>='AAADxyAAWAAHDLIAAB' AND ROWID<='AAADxyAAWAAHDLIAAH'; 2    3    4
COUNT(*)
         7
Elapsed: 00:00:02.31
SQL> select * from table(dbms_xplan.display_cursor(null,null,'iostats last'));
PLAN_TABLE_OUTPUT
SQL_ID aqbdu2p2t6w0z, child number 1
SELECT count(*)   FROM intsfi i WHERE ROWID>='AAADxyAAWAAHDLIAAB' AND
ROWID<='AAADxyAAWAAHDLIAAH'
Plan hash value: 1610739540
| Id | Operation             | Name    | Starts | E-Rows | A-Rows |   A-Time   | Buffers |
|   0 | SELECT STATEMENT      |         |      1 |        |      1 |00:00:02.31 |   68351 |
|   1 | SORT AGGREGATE       |         |      1 |      1 |      1 |00:00:02.31 |   68351 |
|* 2 |   INDEX FAST FULL SCAN| INTSFI2 |      1 | 35004 |      7 |00:00:02.31 |   68351 |
Predicate Information (identified by operation id):
   2 - filter((ROWID>='AAADxyAAWAAHDLIAAB' AND ROWID<='AAADxyAAWAAHDLIAAH'))According to Jonathan Lewis' book, for a normal column the selectivity would have been:
(value_column1-value_column2)/(high_value-low_value)+1/num_distinct+1/num_distinct
But here with the ROWID column, how does the CBO make its computation ?
SINGLE TABLE ACCESS PATH
Single Table Cardinality Estimation for INTSFI[I]
Table: INTSFI Alias: I
    Card: Original: 14001681.000000 Rounded: 35004 Computed: 35004.20 Non Adjusted: 35004.20

Hi Jonathan,
Some Clarifications
=============
DELETE /*+ ROWID(I) */ FROM INTSFI I WHERE
(I.DAVAL<=TO_DATE('12032008','DDMMYYYY') AND (EXISTS(SELECT 1 FROM
INTSFI S WHERE S.COINT=I.COINT AND S.NUCPT=I.NUCPT AND S.CTSIT=I.CTSIT
AND NVL(S.RGCID,-1)=NVL(I.RGCID,-1) AND S.CODEV=I.CODEV AND
S.COMAR=I.COMAR AND S.DAVAL>I.DAVAL) AND I.COMAR IN (SELECT P.COMAR
FROM PURMAR P WHERE P.NUPUR=1))) AND ROWID>='AAADxyAAWAAHDLIAAB' AND
ROWID<='AAADxyAAWAAHDLIAAH'
Plan hash value: 1677274993
| Id | Operation                      | Name    | Starts | E-Rows | A-Rows |   A-Time   | Buffers | OMem | 1Mem | Used-Mem |
|   0 | DELETE STATEMENT               |         |      1 |        |      0 |00:00:05.94 |   53247 |    |          |          |
|   1 | DELETE                        | INTSFI |      1 |        |      0 |00:00:05.94 |   53247 |    |          |          |
|* 2 |   HASH JOIN SEMI               |         |      1 |   9226 |      7 |00:00:05.94 |   53180 |   783K|   783K| 471K (0)|
|   3 |    NESTED LOOPS                |         |      1 |   9226 |      7 |00:00:00.01 |      10 |    |          |          |
|* 4 |     TABLE ACCESS BY ROWID RANGE| INTSFI |      1 |   9226 |      7 |00:00:00.01 |       6 |    |          |          |
|* 5 |     INDEX UNIQUE SCAN          | PURMAR1 |      7 |      1 |      7 |00:00:00.01 |       4 |    |          |          |
|   6 |    INDEX FAST FULL SCAN        | INTSFI1 |      1 |     14M|   7543K|00:00:01.73 |   53170 |    |          |          |
Predicate Information (identified by operation id):
   2 - access("S"."COINT"="I"."COINT" AND "S"."NUCPT"="I"."NUCPT" AND "S"."CTSIT"="I"."CTSIT" AND
              NVL("S"."RGCID",(-1))=NVL("I"."RGCID",(-1)) AND "S"."CODEV"="I"."CODEV" AND "S"."COMAR"="I"."COMAR")
       filter("S"."DAVAL">"I"."DAVAL")
   4 - access(ROWID>='AAADxyAAWAAHDLIAAB' AND ROWID<='AAADxyAAWAAHDLIAAH')
       filter("I"."DAVAL"<=TO_DATE(' 2008-03-12 00:00:00', 'syyyy-mm-dd hh24:mi:ss'))
   5 - access("P"."NUPUR"=1 AND "I"."COMAR"="P"."COMAR")
When I force the NESTED LOOP SEMI JOIN the query runs faster:
DELETE /*+ ROWID(I) */ FROM INTSFI I WHERE
(I.DAVAL<=TO_DATE('12032008','DDMMYYYY') AND (EXISTS(SELECT /*+ NL_SJ
*/ 1 FROM INTSFI S WHERE S.COINT=I.COINT AND S.NUCPT=I.NUCPT AND
S.CTSIT=I.CTSIT AND NVL(S.RGCID,-1)=NVL(I.RGCID,-1) AND S.CODEV=I.CODEV
AND S.COMAR=I.COMAR AND S.DAVAL>I.DAVAL) AND I.COMAR IN (SELECT P.COMAR
FROM PURMAR P WHERE P.NUPUR=1))) AND ROWID>='AAADxyAAWAAHDLIAAB' AND
ROWID<='AAADxyAAWAAHDLIAAH'
Plan hash value: 2031485112
| Id | Operation                      | Name    | Starts | E-Rows | A-Rows |   A-Time   | Buffers |
|   0 | DELETE STATEMENT               |         |      1 |        |      0 |00:00:00.01 |      94 |
|   1 | DELETE                        | INTSFI |      1 |        |      0 |00:00:00.01 |      94 |
|   2 |   NESTED LOOPS SEMI            |         |      1 |   9226 |      7 |00:00:00.01 |      27 |
|   3 |    NESTED LOOPS                |         |      1 |   9226 |      7 |00:00:00.01 |       9 |
|* 4 |     TABLE ACCESS BY ROWID RANGE| INTSFI |      1 |   9226 |      7 |00:00:00.01 |       5 |
|* 5 |     INDEX UNIQUE SCAN          | PURMAR1 |      7 |      1 |      7 |00:00:00.01 |       4 |
|* 6 |    INDEX RANGE SCAN            | INTSFI1 |      7 |     14M|      7 |00:00:00.01 |      18 |
Predicate Information (identified by operation id):
   4 - access(ROWID>='AAADxyAAWAAHDLIAAB' AND ROWID<='AAADxyAAWAAHDLIAAH')
       filter("I"."DAVAL"<=TO_DATE(' 2008-03-12 00:00:00', 'syyyy-mm-dd hh24:mi:ss'))
   5 - access("P"."NUPUR"=1 AND "I"."COMAR"="P"."COMAR")
   6 - access("S"."COINT"="I"."COINT" AND "S"."NUCPT"="I"."NUCPT" AND
              "S"."CTSIT"="I"."CTSIT" AND "S"."CODEV"="I"."CODEV" AND "S"."COMAR"="I"."COMAR" AND
              "S"."DAVAL">"I"."DAVAL")
       filter(NVL("S"."RGCID",(-1))=NVL("I"."RGCID",(-1)))the above post is from Ahmed AANGOUR
Case 1 - . If you check Plan hash value: 16772749938
=====
TABLE ACCESS BY ROWID RANGE| INTSFI For every row access from INTSFI - it fetches a record from INDEX UNIQUE SCAN | PURMAR1
If we check A-rows = 9226
9226 * 7 = 64582 request across the table - perhaps with hint of rowid it fetches exact rows from PURMAR1
in this case i think going for hash join with ordered hints (jonathan as you suggest go for leading hint's instead of ordered) - from INTSFI - PURMAR1 - instead of going for IN clause would get the rows that satifies the ("P"."NUPUR"=1 AND "I"."COMAR"="P"."COMAR")
|* 2 |   HASH JOIN SEMI               |         |      1 |   9226 |      7 |00:00:05.94 |   53180 |   783K|   783K| 471K (0)|
|   3 |    NESTED LOOPS                |         |      1 |   9226 |      7 |00:00:00.01 |      10 |    |          |          |
|* 4 |     TABLE ACCESS BY ROWID RANGE| INTSFI |      1 |   9226 |      7 |00:00:00.01 |       6 |    |          |          |
|* 5 |     INDEX UNIQUE SCAN          | PURMAR1 |      7 |      1 |      7 |00:00:00.01 |       4 |    |          |          |My understanding with above plan would change to
HASH JOIN
TABLE ACCESS BY ROWID RANGE| INTSFI
INDEX UNIQUE SCAN | PURMAR1
HASH JOIN
INDEX FAST FULL SCAN | INTSFI1
Which migt be feasible.
2 .
DELETE /*+ ROWID(I) */ FROM INTSFI I WHERE
(I.DAVAL<=TO_DATE('12032008','DDMMYYYY') AND (EXISTS(SELECT /*+ NL_SJ
*/ 1 FROM INTSFI S WHERE S.COINT=I.COINT AND S.NUCPT=I.NUCPT AND
S.CTSIT=I.CTSIT AND NVL(S.RGCID,-1)=NVL(I.RGCID,-1) AND S.CODEV=I.CODEV
AND S.COMAR=I.COMAR AND S.DAVAL>I.DAVAL) AND I.COMAR IN (SELECT P.COMAR
FROM PURMAR P WHERE P.NUPUR=1))) AND ROWID>='AAADxyAAWAAHDLIAAB' AND
ROWID<='AAADxyAAWAAHDLIAAH'Ahmed AANGOUR, modified the query by /*+ NL_SJ */ hint, Instead of that in to remove the most of the rows as we join the tables using subquery, I still doubt it
to go push_predicate hints - still doubt it.
Jonathan your comments are most valuable in the above two cases..
Looking forward to calrify my understanding with concepts of indexes for above test cases
- Pavan Kumar N

Deadlock detected during SELECT FOR UPDATE - an application error?

I have a general question about how Oracle prevents deadlocks from affecting
applications: do I need to build support into the application for handling
deadlocks when they occur in this particular scenario, or should Oracle handle
this for me? I'd like to know whether this is "normal" behavior for an Oracle
application, or if there is an underlying problem. Consider the following situation:
Two sessions issue individual SELECT FOR UPDATE queries. Each query locates
records in the table using a different index. These indexes point to rows in a
different order from each other, meaning that a deadlock will occur if the two
statement execute simultaneously.
For illustrative purposes, consider these rows in a hypothetical table.
ALPHABET
alpha
bravo
charlie
delta
echo
foxtrot
golf
hotel
Index A results in traversing the table in ascending alphabetical order; index
B, descending. If two SELECT FOR UPDATE statements concurrently execute on this
table--one with an ascending order execution path and one in descending order--
the two processes will deadlock at the point where they meet. If Session A
locks alpha, bravo, charlie, and delta, while Session B locks hotel, golf,
foxtrot, and echo, then neither process can proceed. A needs to lock echo, and
B needs to lock delta, but one cannot continue until the other releases its
locks.
This execution path can be encouraged using hints. Executing queries similar to these on larger tables will generate the "collision" as described above.
-- Session A
select /*+ index_asc (customer) */
from customer
where gender = 'M'
for update;
-- Session B
select /*+ index_desc (customer) */
from customer
where gender = 'M'
for update;
Oracle will recognize that both sessions are in a stand-off, and it will roll
back the work performed by one of the two sessions to break the deadlock.
My question pivots on whether or not, in this situation, the deadlock gets
reported back to the application executing the queries as an ORA-00060. If
these are the ONLY queries executed during these sessions, I would think that
Oracle would rollback the locking performed in one of the SELECT FOR UPDATE
statements. If I understand correctly,
(1) Oracle silently rolls back and replays work performed by UPDATE statements
when a deadlock situation occurs within the scope of the update statement,
and
(2) A SELECT FOR UPDATE statement causes Oracle, at the point in time the cursor
is opened, to lock all rows matching the WHERE clause.
If this is the case, then should I expect Oracle to produce an ORA-00060
deadlock detection error for two SELECT FOR UPDATE statements?
I would think that, for deadlock situations completely within Oracle's control,
this should be perceived to the application invoking the SELECT FOR UPDATE
statements as regular blocking. Since the query execution plans are the sole
reason for this deadlock situation, I think that Oracle would handle the
situation gracefully (like it does for UPDATE, as referenced in (1)).
Notice, from the trace file below, that the waits appear to be from row locking,
and not from an artificial deadlock (e.g. ITL contention).
Oracle8i Enterprise Edition Release 8.1.7.4.0 - 64bit Production
With the Partitioning option
DEADLOCK DETECTED
Current SQL statement for this session:
SELECT XXX FROM YYY WHERE ZZZ LIKE 'AAA%' FOR UPDATE
----- PL/SQL Call Stack -----
object line object
handle number name
58a1f8f18 4 anonymous block
58a1f8f18 11 anonymous block
The following deadlock is not an ORACLE error. It is a
deadlock due to user error in the design of an application
or from issuing incorrect ad-hoc SQL. The following
information may aid in determining the deadlock:
Deadlock graph:
---------Blocker(s)-------- ---------Waiter(s)---------
Resource Name process session holds waits process session holds waits
TX-002f004b-000412cf 37 26 X 26 44 X
TX-002e0044-000638b7 26 44 X 37 26 X
session 26: DID 0001-0025-00000002 session 44: DID 0001-001A-00000002
session 44: DID 0001-001A-00000002 session 26: DID 0001-0025-00000002
Rows waited on:
Session 44: obj - rowid = 0000CE31 - AAANCFAApAAAAGBAAX
Session 26: obj - rowid = 0000CE33 - AAANCHAArAAAAOmAAM
Thanks for your insight,
- Curtis
(1) "Oracle will silently roll back your update and restart it"
http://tkyte.blogspot.com/2005/08/something-different-part-i-of-iii.html
(2) "All rows are locked when you open the cursor, not as they are fetched."
http://download-east.oracle.com/docs/cd/A87860_01/doc/appdev.817/a77069/05_ora.htm#2170
Message was edited by:
Curtis Light

Thanks for your response. In my example, I used the indexes to force a pair of query execution plans to "collide" somewhere in the table in question by having one query traverse the table via index in an ascending order, and another in descending. This is an artificial scenario for reproducible illustrative purposes, but similar collisions could legitimately occur in real world scenarios (e.g. a full table scan and an index range scan with lookup by ROWID).
So, with that said, I think it would be unreasonable for Oracle to report the collision as a ORA-00060 every time it occurs because:
(1) The UPDATE statement handles this situation automatically, and
(2) An ORA-00060 results in a 100+KB trace file being written out, only rational for truly erroneous situations.
I agree that, when the application misbehaves and locks rows out of order in separate SQL statements, then Oracle should raise an ORA-00060, as the deadlock is outside of its control. But in this case, the problem occurs with just two individual SQL statements, each within its own transaction.

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