Creating Transparent Table by code in Memory

Hi,
Iu2019m trying to create a transparent table by code using ABAP and store the table in the memory.
I want to be able to create a physical data dictionary table, just like using se11 (Database table -> Transp. Table), but I want to create it in the memory during runtime without actually creating the table in the system. Iu2019m not interested in using an internal table.
I want to simulate the existence of an transparent table in the system by creating it dynamically on runtime and have it available in the memory so that I can use it as any other table that is created using se11. Iu2019m aware of the FMs DD_CREATE_TABLE and DDIF_TABL_PUT, but these FMs actually create the table in the system, Iu2019m not interested in creating the table permanently.
Thanks & Regards,
Behzad

Hi,
I donu2019t want to be rude, but please, if you are unlettered and canu2019t understand why someone asks for something that you believe is unnecessary because you have never thought about it, just donu2019t answer the question.
Why Iu2019m asking this question is of course NOT because I donu2019t know what an internal table is or how to use it, but because Iu2019m trying to achieve a specific scenario that is not possible with internal tables.
What Iu2019m trying to accomplish is to build an structure in runtime that can be used with the SQL JOIN-statement without the need of creating the transparent table in the system permanently. Joining tables with SQL-query is not possible using internal tables, but if one could create an transparent table in memory on runtime that contains values from an internal table then this temporary transparent table could be used in the SQL-query scenario. This way different types of optimization could be performed on runtime.
So now, if someone can answer my question, without any ridicules and ignorant answer I would be really thankful.
Thanks in advance,
Behzad

Similar Messages

Procedure for creating transparent table, data element and domain

Hi,
Can anybody let me know the procedure for creating transparent table, data element and domain.
Thanks,
Mahathi

Hi
Database table and its components
A database table is the central data structure of the ABAP/4 data dictionary.
The structure of the objects of application development are mapped in tables on the underlying relational database.
The attributes of these objects correspond to fields of the table.
A table consists of columns (fields) and rows (entries). It has a name and different attributes, such as delivery class and maintenance authorization.
A field has a unique name and attributes; for example it can be a key field.
A table has one or more key fields, called the primary key.
The values of these key fields uniquely identify a table entry.
You must specify a reference table for fields containing a currency (data type CURR) or quantity (data type QUAN). It must contain a field (reference field) with the format for currency keys (data type CUKY) or the format for units (data type UNIT). The field is only assigned to the reference field at program runtime.
The basic objects for defining data in the ABAP Dictionary are tables, data elements and domains. The domain is used for the technical definition of a table field (for example field type and length) and the data element is used for the semantic definition (for example short description).
A domain describes the value range of a field. It is defined by its data type and length. The value range can be limited by specifying fixed values.
A data element describes the meaning of a domain in a certain business context. It contains primarily the field help (F1 documentation) and the field labels in the screen.
A field is not an independent object. It is table-dependent and can only be maintained within a table.
You can enter the data type and number of places directly for a field. No data element is required in this case. Instead the data type and number of places is defined by specifying a direct type.
The data type attributes of a data element can also be defined by specifying a built-in type, where the data type and number of places is entered directly.
<b>Two Level Domain Example</b>
A domain defines a field technically and therefore it may
be used at different business levels.
A data element describes the meaning of a domain in a certain business context.
A domain, however, is used for the technical definition of a table field (for example field type and length).
Therefore, although a take-off airport (data element S_FROMAIRP) would have a different business meaning from an airport where a plane lands (data element S_TOAIRP), they could still have the same domain(here S_AIRPID) because technically we could assign the same number of characters whether the airport is a take-off or a landing airport.
<b>Definitions of Table in Database</b>
In SAP R/3 tables are defined as
A) Transparent tables: All of the fields of a dictionary table correspond to a field in the real database table.
B) Pooled tables: Different tables which are not linked to each other with a common key are combined into a TABLE POOL. Several logical tables thus exist as a single real database table.
C) Cluster tables: Several tables linked by a common key may sometimes be combined by the data dictionary and made to exist on the database schema as a single table.
SAP is evolving R/3 tables in transparent tables.
<b>Elaboration on each of the definitions</b>
A transparent table is automatically created on the database when it is activated in the ABAP Dictionary. At this time the database-independent description of the table in the ABAP Dictionary is translated into the language of the database system used.
The database table has the same name as the table in the ABAP Dictionary. The fields also have the same name in both the database and the ABAP Dictionary. The data types in the ABAP Dictionary are converted to the corresponding data types of the database system.
The order of the fields in the ABAP Dictionary can differ from the order of the fields on the database. This permits you to insert new fields without having to convert the table. When a new field is added, the adjustment is made by changing the database catalog (ALTER TABLE). The new field is added to the database table, whatever the position of the new field in the ABAP Dictionary.
Tables can also reside on the database as Pooled tables or cluster tables
Pooled Tables: Different tables which are not linked to each other with a common key can be combined into a Table Pool. The tables contained within this pool are called Pooled Tables. A table pool is stored in the database a simple table. The table's data sets contain, in separate fields, the actual key for the data set to be stored, the name of the pooled table and the contents of the data set to be stored.
Using this schema, several logical tables are combined into a single real database table. Although the data structure of each set is lost during the write to the table pool, it is restored during the read by the ABAP/4 Data Dictionary. The ABAP/4 Data Dictionary utilizes its meta-data to accomplish this.
Since information must be prepared (defined) within the ABAP/4 Data Dictionary when it is read or written to (or accessed), this process itself defines these as not transparent tables
Cluster Tables: Occasionally, several tables may be linked by a common key. The ABAP/4 Data Dictionary can also combine these tables into a single table. Each data set of the real table within the database contains a key and in a single data field, several data sets of the subsequent table for this key.
As mentioned above, these table types require special data handling, therefore they are not transparent tables.
<b>Technical Settings in Dictionary</b>
The data class logically defines the physical area of the database (for ORACLE the table space) in which your table should be created. If you choose the data class correctly, the table will automatically be created in the appropriate area on the database when it is activated in the ABAP Dictionary.
The most important data classes are master data, transaction data, organizational data and system data.
Master data is data that is rarely modified. An example of master data is the data of an address file, for example the name, address and telephone number.
Transaction data is data that is frequently modified. An example is the material stock of a warehouse, which can change after each purchase order.
Organizational data is data that is defined during customizing when the system is installed and that is rarely modified thereafter. The country keys are an example.
System data is data that the R/3 System itself needs. The program sources are an example.
Further data classes, called customer data classes (USER, USER1), are provided for customers. These should be used for customer developments. Special storage areas must be allocated in the database.
The size category describes the expected storage requirements for the table on the database.
An initial extent is reserved when a table is created on the database. The size of the initial extent is identical for all size categories. If the table needs more space for data at a later time, extents are added. These additional extents have a fixed size that is determined by the size category specified in the ABAP Dictionary.
You can choose a size category from 0 to 4. A fixed extent size, which depends on the database system used, is assigned to each category.
Correctly assigning a size category therefore ensures that you do not create a large number of small extents. It also prevents storage space from being wasted when creating extents that are too large.
Modifications to the entries of a table can be recorded and stored using logging.
To activate logging, the corresponding field must be selected in the technical settings. Logging, however, only will take place if the R/3 System was started with a profile containing parameter 'rec/client'. Only selecting the flag in the ABAP Dictionary is not sufficient to trigger logging.
Parameter 'rec/client' can have the following settings:
rec/client = ALL All clients should be logged.
rec/client = 000[...] Only the specified clients should be logged.
rec/client = OFF Logging is not enabled on this system.
The data modifications are logged independently of the update. The logs can be displayed with the Transaction Table History (SCU3).
Logging creates a 'bottleneck' in the system:
Additional write access for each modification to tables being logged.
This can result in lock situations although the users are accessing different application tables!
<b>Create transparent table</b>
Go to transaction SE11. Enter name of table you want to create (beginning with Y or Z) and click on create pushbutton
Enter the delivery class and the table maintenance criteria
The delivery class controls the transport of table data when installing or upgrading, in a client copy and when transporting between customer systems .
The display/maintenance indicator specifies whether it is possible to display/maintain a table/view using the maintenance tools Data Browser (transaction SE16) and table view maintenance (transactions SM30 and SM31).
Enter the name of the table field and the data element. The
System automatically populates the technical details for
existing data elements.
So far as possible it is advisable to use existing data elements which befit the business requirements.
However, we may create data elements if need be. The same is shown in the next slide.
To create a data element simply double click on it.
Alternately create a data element by simply choosing the
data type radio button on SE11 initial screen.
<b>Create data element</b>
The system prompts you to create a new data element.
Choose the Yes pushbutton.
Under the data type tab enter the domain name which
determines the technical characteristics of the field.
Further characteristics tab: Allows you to specify a search help assigned to the data element.
It also allows you to specify a parameter id which helps you populate a field from SAP memory.
Field label: Can be assigned as prefixed text to a screen field referring to the ABAP Dictionary. The text is displayed on the screen in the logon language of the user (if the text was translated into this language).
<b>Create domain</b>
If the domain does not exist in the data dictionary the
system prompts you to create one.
Give the technical characteristics under the definition
tab. Value range allows you value restriction at domain
level.
Value range tab:
As explained in the section Consistency through input checks one can restrict the possible values for a field at domain level itself by either entering fixed values or by specifying a value table under the tab Value range.
<b>Currency/Quantity fields in a table</b>
A currency or a quantity field must be assigned a reference field from a reference table containing applicable qty unit or currency unit.
Field of the reference table, containing the applicable quantity unit or currency
A field containing currency amounts (data type CURR) must be assigned a reference field including the currency key (data type CUKY).
A field containing quantity specifications (data type QUAN) must be assigned a reference field including the associated quantity unit (data type UNIT).
<b>Create transparent table continue</b>
Maintain the technical settings of the table by clicking on the tab

Error in creating the table by code

Hi All,
When i creating the table by a code then i get the error code,
Plz Help...
Regards
Vikas

Hi Vikas,
When u create a table so after creating the table you have to remove the both object,table object and field object.
I think it ll helpful for you.
Regards
Yogesh

How to create a transparent table(z table) dynamically

Hi,
Can anyone explain me how to create a transparent table(z table) dynamically in the program.
Any function module or suggestions welcome.

Hi Mithun
             we will not create transparent table in the program . you could do it by using native SQL in the ABAP Program . the sample is show in below .
This is a sample that show how to connect to Database directly and can use the native SQL to select , create or delete table.
PARAMETERS dbs TYPE dbcon-con_name default 'SDB'.
DATA carrid_wa TYPE scarr-carrid.
DATA lv_int TYPE i.
*Types
data: begin of ty_equi,
equipment(25) type c,
SERIALENERGY(25) type c,
end of ty_equi.
*Internal Tables
data it_equi like table of ty_equi.
data wa_equi like line of it_equi.
DATA dbtype TYPE dbcon_dbms.
SELECT SINGLE dbms
       FROM dbcon
       INTO dbtype
       WHERE con_name = dbs.
IF dbtype = 'ORA'.
TRY.
      EXEC SQL.
        CONNECT TO :dbs
      ENDEXEC.
      IF sy-subrc <> 0.
        RAISE EXCEPTION TYPE cx_sy_native_sql_error.
      ENDIF.
      EXEC SQL.
        OPEN dbcur FOR
          SELECT
                 EQUIPMENT,
                 SERIALENERGY
                 FROM emd.meter
      ENDEXEC.
      DO.
        EXEC SQL.
          FETCH NEXT dbcur INTO :wa_EQUI
        ENDEXEC.
        IF sy-subrc <> 0.
          EXIT.
        ELSE.
          WRITE: /
          wa_equi-equipment,
          wa_equi-SERIALENERGY.
        ENDIF.
      ENDDO.
      EXEC SQL.
        CLOSE dbcur
      ENDEXEC.
      EXEC SQL.
        DISCONNECT :dbs
      ENDEXEC.
    CATCH cx_sy_native_sql_error.
      MESSAGE `Error in Native SQL.` TYPE 'I'.
ENDTRY.
ENDIF.
Regards
Wiboon

Differrence between table & transparent table

Hi there ,
                  What is the differrence between table & transparent table.....?
Thanks & Regrads
Kaushik

hi,
transparent table one of type of table
In Abap dictionaty we can create
Transparent Tables
Pooled and Clustered Tables
These type of tables.
The difference between pooled and clustered tables is
Cluster tables and Pooled tables have many to one relationship with the underlying database.
A table pool corresponds to a table in the database in which all records from the pooled tables assigned to it are stored.
Several logical data records from different cluster tables can be stored together in one physical record in a table cluster.
     A pooled table cannot have the name having more than 10 characters.
     All the key fields of the pooled table must be of character data type.
     In pooled tables, the maximum length of the key field/data fields should not exceed the length of varkey/vardata of the pool respectively.
     In cluster table the records having the same key are stored in a single key in the cluster.
     If there is an overflow of the data records a continuation record is created with the same table key.
structer - transparent table
structer - transparent table
http://help.sap.com/saphelp_nw04/helpdata/en/cf/21f0d1446011d189700000e8322d00/frameset.htm
HOW 2 COMBINE TRANSPARENT AND CLUSTER TABLE WITHOUT USING FOR ALL ENTRIES?
regards,
pavan

How can I modify data from a Transparent Table without ABAP code.

Hi,All
How can I modify data from a Transparent Table (like TCURR), and important thing is I want do all that with no ABAP code here. It is like that we always do that in a Oracle database use TOAD or PLSQL third party tools, with no script code here.
I had fond that there is a way can do that:
1, type 'se11',and Display Database table 'TCURR', click Contents, then click Execute to display all data
2, type '/h' and let debugging on
3, select one of this data then click 'Display',enter in debugging system.
4, then make a breakpoint in the code. But... display a dialog let I type a 'ABAP Cmnds', I want to know what can be type in for that?
and, My system is ECC6.
thank you all
Edited by: xuehui li on Aug 20, 2008 6:30 PM

Hello,
Your approach (with Vijay's suggestion) MAY work. However, depending on how tight security is at the company that you are working at you may or may not be able to acutaly change the value of the SHOW field to EDIT. This will be especially true if you are working in a Production environment. Vijay's other comment is true as well. This is not a recommended approach to change data (especially data with a financial impact like TCURR) in a production environment. The auditors will not be impressed.
Explore the option of a maintenace view or look at tcode TBDM to upload a file which includes daily rates from providers like Reuters or try tcode s_bce_68000174 which is a maintenance view on TCURR.
Regards
Greg Kern

How to create a table in the file using java code.?

HI,
I should export the data from the view objects to a word document. I have done that but I should
display the data in the form of a table.
Kindly come up with the necessary information on how to create a table in the file using java.
Thanks,
Phani

Hi, Thank you for responding to my query.
The below are the details of my code.
DCBindingContainer dcBindings =
(DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry();
DCIteratorBinding StudentDetailsContent =
(DCIteratorBinding)dcBindings.get("StudentView1Iterator");
OutputStreamWriter w = new OutputStreamWriter(outputStream, "UTF-8");
Row currentRow =
StudentDetailsContent.getRowSetIterator().first();
Object a[]= currentRow.getAttributeValues();
int i;
for(i=0 ;i<=a.length;i++){
w.write(a.toString());
w.write(" ");
w.flush();
I am usning this coding to achieve the task of exporting data to file.
I need to display this information in the table that is where I need help from you people.
Thanks,

How to create ForeignKey reference to code-first identity tables.

Hi,
I'm developing a web application using MVC 5, EntityFramework 6 with a Code-First approach.
I have successfully created my tables dbo.AspNetRoles, dbo.AspNetUsers... etc, also I have created some custom tables for example a table that must have a relationship between the menus presented and the role of the authenticated user. What I want to add
to my model is a property like this:
[ForeignKey]public virtual AspNetRoles Roles { get; set; }
But of course I have not an AspNetRoles class, because the framework auto generates the tables only in the SQL database, so my question is, I have to manually create this classes? How can I link them to the database tables, I think the issue may be deeper.
If I can't do this maybe I should go back to SQL manual queries.
Thanks!

Hello Morral,
>> What I want to add to my model is a property like this:
If you have a separate model to store your own business model, what you have written should be almost ok, however, please take care the [ForeignKey] attribute is usually used to markup a property as an integer property to specify it as a foreign key:
public virtual int RoleID { get; set; } [ForeignKey("RoleID")]
public virtual AspNetRoles Roles { get; set; }
Or it would generated a combinatorial name.
>> But of course I have not an AspNetRoles class, because the framework auto generates the tables only in the SQL database, so my question is, I have to manually create this classes?
From your description, the AspNetRoles class seems to be a system class which is not exposed to user. If so, these classes already exists, you do not need to create them again.
I notice that you are working with the MVC project, you could also ask this issue to the MVC forum:
http://forums.asp.net/1146.aspx
There are MVC experts will help you.
Regards.
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
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HERE to participate the survey.

Can anyone explain me how to create a transparent table(z table) dynamicall

Can anyone explain me how to create a transparent table(z table) dynamically in the program.

Hi,
Look at the below link
http://www.sap-img.com/ab030.htm
Regards
Sudheer

Creating BO universe on Transparent tables

Hi,
Can we create a BO universe on Transparent tables in the BW system?
Kindly respond if you hvae any inputs

Hi,
Assuming your are using BOE XI 3.1, Integration Kit for SAP, and WebIntelligence
Then, NO, that MDX BAPI driver is for consumption of BEx Queries only.
Regards,
H
p.s. however, you might have more luck using Crystal Reports "SAP Table, ABAP function, and InfoSet" driver - although that is intended for ERP access (R/3 // ECC)

How to create advance table region with columns by code

hello friends
i need to create advance table region and columns dynamically ... for that i want to know any code snippet do you have
please share with me that would be really great help

Hi ,
It is not possible through code but
1.) U can create a new custom OAAdvanced table under a custom region using JDeveloper.
2.) Create stack layout bean using personalization on the page ,and in extend property of StackLayoutBean mention the complete path of above custom region .
Thank
Pratap

TRANSPARENT TABLE REQUIRED for the field level no T CODE : MB56

hi
i m trying 2 get the transparent table name and field name for LEVEL NO field which is present in tcode MB56 (30F VERSION). I am getting the details in technical info 1. structure is AM07M & field name is CUSTFE. can any guide how 2 get transparent table for the level no field.
but as of release 4.7 the field name is EXPANSION LEVEL(TCODE MB56 ).
here also i m not getting the transparent table corresponding to EXPANSION LEVEL field.
it would be great help if i can get assistance in this issue.
regards

unanswered

In creating 133 tables at a time ,SAP BO takes 1:45 Hours

Dear,
         All,
                In creating 133 tables at a time ,SAP BO takes 1:45 Hours.
                It becomes a big problem for us .Please give suggestion for creating   all tables in less time.
<b>SAPBO partner member</b>

Hi Vivek,
I don't know how you will be able to make it faster. The only way you can do that is to make sure your memory management is done properly. Make sure you release all objects before using it again so that your memory is always optimal.
I suggest you post a snippet of your code so we can see where you can improve.
How many fields are there in each of these tables on average?
Adele
PS: 133 tables are a lot of tables! If you work it out it's about 48 seconds per table which is not really slow, depending on the number of fields you have in there...

How to create hashed table in runtime

hi experts
how to create hashed table in runtime, please give me the coading style.
please help me.
regards
subhasis

Hi,
Have alook at the code, and pls reward points.
Use Hashed Tables to Improve Performance :
report zuseofhashedtables.
Program: ZUseOfHashedTables                                        **
Author: XXXXXXXXXXXXXXXXXX                                 **
Versions: 4.6b - 4.6c                                              **
Notes:                                                             **
    this program shows how we can use hashed tables to improve     **
    the responce time.                                             **
    It shows,                                                      **
       1. how to declare hashed tables                             **
       2. a cache-like technique to improve access to master data **
       3. how to collect data using hashed tables                  **
       4. how to avoid deletions of unwanted data                  **
Results: the test we run read about 31000 rows from mkpf, 150000   **
         rows from mseg, 500 rows from makt and 400 from lfa1.     **
         it filled ht_lst with 24500 rows and displayed them in    **
         alv grid format.                                          **
         It needed about 65 seconds to perform this task (with     **
         all the db buffers empty)                                 **
         The same program with standard tables needed 140 seconds **
         to run with the same recordset and with buffers filled in **
Objetive: show a list that consists of all the material movements **
         '101' - '901' for a certain range of dates in mkpf-budat. **
the columns to be displayed are:                                   **
         mkpf-budat,                                               **
         mkpf-mblnr,                                               **
         mseg-lifnr,                                               **
         lfa1-name1,                                               **
         mkpf-xblnr,                                               **
         mseg-zeile                                                **
         mseg-charg,                                               **
         mseg-matnr,                                               **
         makt-maktx,                                               **
         mseg-erfmg,                                               **
         mseg-erfme.                                               **
or show a sumary list by matnr - menge                             **
You'll have to create a pf-status called vista -                   **
See form set_pf_status for details                                 **
tables used -
tables: mkpf,
        mseg,
        lfa1,
        makt.
global hashed tables used
data: begin of wa_mkpf, "header
      mblnr like mkpf-mblnr,
      mjahr like mkpf-mjahr,
      budat like mkpf-budat,
      xblnr like mkpf-xblnr,
      end of wa_mkpf.
data: ht_mkpf like hashed table of wa_mkpf
      with unique key mblnr mjahr
      with header line.
data: begin of wa_mseg, " line items
      mblnr like mseg-mblnr,
      mjahr like mseg-mjahr,
      zeile like mseg-zeile,
      bwart like mseg-bwart,
      charg like mseg-charg,
      matnr like mseg-matnr,
      lifnr like mseg-lifnr,
      erfmg like mseg-erfmg,
      erfme like mseg-erfme,
      end of wa_mseg.
data ht_mseg like hashed table of wa_mseg
      with unique key mblnr mjahr zeile
      with header line.
cache structure for lfa1 records
data: begin of wa_lfa1,
      lifnr like lfa1-lifnr,
      name1 like lfa1-name1,
      end of wa_lfa1.
data ht_lfa1 like hashed table of wa_lfa1
      with unique key lifnr
      with header line.
cache structure for material related data
data: begin of wa_material,
      matnr like makt-matnr,
      maktx like makt-maktx,
      end of wa_material.
data: ht_material like hashed table of wa_material
        with unique key matnr
        with header line.
result table
data: begin of wa_lst, "
      budat like mkpf-budat,
      mblnr like mseg-mblnr,
      lifnr like mseg-lifnr,
      name1 like lfa1-name1,
      xblnr like mkpf-xblnr,
      zeile like mseg-zeile,
      charg like mseg-charg,
      matnr like mseg-matnr,
      maktx like makt-maktx,
      erfmg like mseg-erfmg,
      erfme like mseg-erfme,
      mjahr like mseg-mjahr,
      end of wa_lst.
data: ht_lst like hashed table of wa_lst
        with unique key mblnr mjahr zeile
        with header line.
data: begin of wa_lst1, " sumary by material
      matnr like mseg-matnr,
      maktx like makt-maktx,
      erfmg like mseg-erfmg,
      erfme like mseg-erfme,
      end of wa_lst1.
data: ht_lst1 like hashed table of wa_lst1
        with unique key matnr
        with header line.
structures for alv grid display.
itabs
type-pools: slis.
data: it_lst            like standard table of wa_lst with header line,
      it_fieldcat_lst   type slis_t_fieldcat_alv with header line,
      it_sort_lst       type slis_t_sortinfo_alv,
      it_lst1           like standard table of wa_lst1 with header line,
      it_fieldcat_lst1 type slis_t_fieldcat_alv with header line,
      it_sort_lst1      type slis_t_sortinfo_alv.
structures
data: wa_sort         type slis_sortinfo_alv,
      ls_layout       type slis_layout_alv.
global varialbes
data: g_lines type i.
data: g_repid like sy-repid,
      ok_code       like sy-ucomm.
selection-screen
"text: Dates:
select-options: so_budat for mkpf-budat default sy-datum.
"text: Material numbers.
select-options: so_matnr for mseg-matnr.
selection-screen uline.
selection-screen skip 1.
"Text: show summary by material.
parameters: gp_bymat as checkbox default ''.
start-of-selection.
perform get_data.
perform show_data.
end-of-selection.
      FORM get_data                                                 *
form get_data.
        select mblnr mjahr budat xblnr
            into table ht_mkpf
           from mkpf
          where budat in so_budat. " make use of std index.
have we retrieved data from mkpf?
describe table ht_mkpf lines g_lines.
if g_lines > 0.
if true then retrieve all related records from mseg.
Doing this way we make sure that the access is by primary key
of mseg.
The reason is that is faster to filter them in memory
than to allow the db server to do it.
    select mblnr mjahr zeile bwart charg
             matnr lifnr erfmg erfme
      into table ht_mseg
      from mseg
        for all entries in ht_mkpf
     where mblnr = ht_mkpf-mblnr
       and mjahr = ht_mkpf-mjahr.
endif.
fill t_lst or t_lst1 according to user's choice.
if gp_bymat = ' '.
    perform fill_ht_lst.
else.
    perform fill_ht_lst1.
endif.
endform.
form fill_ht_lst.
refresh ht_lst.
Example: how to discard unwanted data in an efficient way.
loop at ht_mseg.
filter unwanted data
    check ht_mseg-bwart = '101' or ht_mseg-bwart = '901'.
    check ht_mseg-matnr in so_matnr.
read header line.
    read table ht_mkpf with table key mblnr = ht_mseg-mblnr
    mjahr = ht_mseg-mjahr.
    clear ht_lst.
* note : this may be faster if you specify field by field.
    move-corresponding ht_mkpf to ht_lst.
    move-corresponding ht_mseg to ht_lst.
    perform read_lfa1 using ht_mseg-lifnr changing ht_lst-name1.
    perform read_material using ht_mseg-matnr changing ht_lst-maktx.
    insert table ht_lst.
endloop.
endform.
form fill_ht_lst1.
refresh ht_lst1.
Example: how to discard unwanted data in an efficient way.
         hot to simulate a collect in a faster way
loop at ht_mseg.
filter unwanted data
    check ht_mseg-bwart = '101' or ht_mseg-bwart = '901'.
    check ht_mseg-matnr in so_matnr.
* note : this may be faster if you specify field by field.
    read table ht_lst1 with table key matnr = ht_mseg-matnr
    transporting erfmg.
    if sy-subrc <> 0. " if matnr doesn't exist in sumary table
    " insert a new record
      ht_lst1-matnr = ht_mseg-matnr.
      perform read_material using ht_mseg-matnr changing ht_lst1-maktx.
      ht_lst1-erfmg = ht_mseg-erfmg.
      ht_lst1-erfme = ht_mseg-erfme.
      insert table ht_lst1.
    else." a record was found.
    " collect erfmg. To do so, fill in the unique key and add
    " the numeric fields.
      ht_lst1-matnr = ht_mseg-matnr.
      add ht_mseg-erfmg to ht_lst1-erfmg.
      modify table ht_lst1 transporting erfmg.
    endif.
endloop.
endform.
implementation of cache for lfa1.
form read_lfa1 using p_lifnr changing p_name1.
        read table ht_lfa1 with table key lifnr = p_lifnr
        transporting name1.
if sy-subrc <> 0.
    clear ht_lfa1.
    ht_lfa1-lifnr = p_lifnr.
    select single name1
       into ht_lfa1-name1
      from lfa1
    where lifnr = p_lifnr.
    if sy-subrc <> 0. ht_lfa1-name1 = 'n/a in lfa1'. endif.
    insert table ht_lfa1.
endif.
p_name1 = ht_lfa1-name1.
endform.
implementation of cache for material data
form read_material using p_matnr changing p_maktx.
read table ht_material with table key matnr = p_matnr
transporting maktx.
if sy-subrc <> 0.
    ht_material-matnr = p_matnr.
    select single maktx into ht_material-maktx
      from makt
     where spras = sy-langu
       and matnr = p_matnr.
    if sy-subrc <> 0. ht_material-maktx = 'n/a in makt'. endif.
    insert table ht_material.
endif.
p_maktx = ht_material-maktx.
endform.
form show_data.
if gp_bymat = ' '.
    perform show_ht_lst.
else.
    perform show_ht_lst1.
endif.
endform.
form show_ht_lst.
"needed because the FM can't use a hashed table.
it_lst[] = ht_lst[].
perform fill_layout using 'full display'
                       changing ls_layout.
perform fill_columns_lst.
perform sort_lst.
g_repid = sy-repid.
call function 'REUSE_ALV_GRID_DISPLAY'
       exporting
            i_callback_program       = g_repid
            i_callback_pf_status_set = 'SET_PF_STATUS'
            is_layout                = ls_layout
            it_fieldcat              = it_fieldcat_lst[]
           it_sort                  = it_sort_lst
       tables
            t_outtab                 = it_lst
       exceptions
            program_error            = 1
            others                   = 2.
endform.
form show_ht_lst1.
"needed because the FM can't use a hashed table.
it_lst1[] = ht_lst1[].
perform fill_layout using 'Sumary by matnr'
                       changing ls_layout.
perform fill_columns_lst1.
perform sort_lst.
g_repid = sy-repid.
call function 'REUSE_ALV_GRID_DISPLAY'
       exporting
            i_callback_program       = g_repid
            i_callback_pf_status_set = 'SET_PF_STATUS'
            is_layout                = ls_layout
            it_fieldcat              = it_fieldcat_lst1[]
           it_sort                  = it_sort_lst
       tables
            t_outtab                 = it_lst1
       exceptions
            program_error            = 1
            others                   = 2.
endform.
form fill_layout using p_window_titlebar
               changing cs_layo type slis_layout_alv.
clear cs_layo.
cs_layo-window_titlebar        = p_window_titlebar.
cs_layo-edit                   = 'X'.
cs_layo-edit_mode              = space.
endform.                    " armar_layout_stock
form set_pf_status using rt_extab type slis_t_extab.
create a new status
and then select extras -> adjust template -> listviewer
set pf-status 'VISTA'.
endform.        "set_pf_status
define add_lst.
clear it_fieldcat_lst.
it_fieldcat_lst-fieldname     = &1.
it_fieldcat_lst-outputlen     = &2.
it_fieldcat_lst-ddictxt       = 'L'.
it_fieldcat_lst-seltext_l       = &1.
it_fieldcat_lst-seltext_m       = &1.
it_fieldcat_lst-seltext_m       = &1.
if &1 = 'MATNR'.
    it_fieldcat_lst-emphasize = 'C111'.
endif.
append it_fieldcat_lst.
end-of-definition.
define add_lst1.
clear it_fieldcat_lst.
it_fieldcat_lst1-fieldname     = &1.
it_fieldcat_lst1-outputlen     = &2.
it_fieldcat_lst1-ddictxt       = 'L'.
it_fieldcat_lst1-seltext_l       = &1.
it_fieldcat_lst1-seltext_m       = &1.
it_fieldcat_lst1-seltext_m       = &1.
append it_fieldcat_lst1.
end-of-definition.
form fill_columns_lst.
set columns for output.
refresh it_fieldcat_lst.
add_lst 'BUDAT' 10.
add_lst   'MBLNR' 10.
add_lst 'LIFNR' 10.
add_lst 'NAME1' 35.
add_lst 'XBLNR' 15.
add_lst    'ZEILE' 5.
add_lst    'CHARG' 10.
add_lst   'MATNR' 18.
add_lst   'MAKTX' 30.
add_lst   'ERFMG' 17.
add_lst   'ERFME' 5.
add_lst   'MJAHR' 4.
endform.
form fill_columns_lst1.
set columns for output.
refresh it_fieldcat_lst1.
add_lst1 'MATNR' 18.
add_lst1 'MAKTX' 30.
add_lst1 'ERFMG' 17.
add_lst1 'ERFME' 5..
endform.
Regards,
Ameet

Field-symbol definition for a variable representing transparent tables

Hi Gurus
I'm trying to create a very simple report to display table descriptions and their DB number of records:
Ex:
MARA 50000
MARD 123000
I can't compile this piece of code:
field-symbols: <table>.
assign (DD02T-TABNAME) to <table>.
    clear n.
    *SELECT COUNT( * )*
       INTO n
       FROM <table>.
The problem here is that <table> is not defined in the ABAP dictionary as a a table , projection view or databse view.
1. Is there a way of defining <table> with a field-symbol data statement to make it work?
2. Alternatively, how can you produce a list of all table DB entry counts for a dynamic list of transparent tables?
Thanks
Nuno

With the code you have field symbol will "point" to a table contained in DD02T-TABNAME , not its name.
What you need is to get the table name , not table itself
field-symbols: <table_name>.
assign DD02T-TABNAME to <table>. "get table name, not its content
clear n.
SELECT COUNT( * )
INTO n
FROM (<table>).
or simply without field symbol
SELECT COUNT( * )
INTO n
FROM (DD02T-TABNAME).
Regards
Marcin

Creating Transparent Table by code in Memory

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