ABAP Select data from SAP table CSTOCKQV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CSTOCKQV table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to CSTOCKQV. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the CSTOCKQV table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_CSTOCKQV TYPE STANDARD TABLE OF CSTOCKQV,
      WA_CSTOCKQV TYPE CSTOCKQV,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <CSTOCKQV> TYPE CSTOCKQV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CSTOCKQV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CSTOCKQV
  INTO TABLE IT_CSTOCKQV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSTOCKQV
*  INTO TABLE @DATA(IT_CSTOCKQV2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_CSTOCKQV INDEX 1 INTO DATA(WA_CSTOCKQV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CSTOCKQV ASSIGNING <CSTOCKQV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSTOCKQV>-MANDT = 1.
<CSTOCKQV>-MATERIAL = 1.
<CSTOCKQV>-PLANT = 1.
<CSTOCKQV>-MRPAREA = 1.
<CSTOCKQV>-MRPTYPE = 1.

ENDLOOP.

LOOP AT IT_CSTOCKQV INTO WA_CSTOCKQV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSTOCKQV-MRPPROCEDURE, sy-vline,
  WA_CSTOCKQV-MRPAVAILABLESTOCKQTY, sy-vline,
  WA_CSTOCKQV-MATERIALSAFETYSTOCKQTY, sy-vline,
  WA_CSTOCKQV-UNRESTRICTEDSTKINSTKUNIT, sy-vline,
  WA_CSTOCKQV-QUALITYINSPECTIONSTOCKQUANTITY, sy-vline,
  WA_CSTOCKQV-RETURNSBLOCKEDSTOCKQUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSTOCKQV you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_CSTOCKQV TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_CSTOCKQV INTO WA_CSTOCKQV.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CSTOCKQV-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSTOCKQV-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CSTOCKQV-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSTOCKQV-BASEUNIT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CSTOCKQV_STR, 
MANDT TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
MRPAREA TYPE STRING,
MRPTYPE TYPE STRING,
MRPPROCEDURE TYPE STRING,
MRPAVAILABLESTOCKQTY TYPE STRING,
MATERIALSAFETYSTOCKQTY TYPE STRING,
UNRESTRICTEDSTKINSTKUNIT TYPE STRING,
QUALITYINSPECTIONSTOCKQUANTITY TYPE STRING,
RETURNSBLOCKEDSTOCKQUANTITY TYPE STRING,
SCHEDULEDQUANTITY TYPE STRING,
PURCHASEORDERQTY TYPE STRING,
REQUIREMENTQUANTITYINBASEUNIT TYPE STRING,
TRANSFERSTOCKPLANTQUANTITY TYPE STRING,
TRANSFERSTOCKSTORAGELOCQTY TYPE STRING,
GOODSRECEIPTBLOCKEDSTOCKQTY TYPE STRING,
PURORDSCHEDULEDDUEQUANTITY TYPE STRING,
CONFIRMEDQUANTITYINBASEUNIT TYPE STRING,
STOCKINTRANSITQUANTITY TYPE STRING,
BLOCKEDSTOCKQUANTITY TYPE STRING,
RESTRICTEDSTOCKQUANTITY TYPE STRING,
CSGNMTUNRSTRCDUSESTKINBASEUOM TYPE STRING,
CONSIGNMENTSTKQTYINQLTYINSP TYPE STRING,
CONSIGNMENTBLKDSTKQTYINBASEUOM TYPE STRING,
CONSIGNMENTRESTRICTEDUSESTKQTY TYPE STRING,
UNRSTRCDUSESTKATSUPLRINBASEUOM TYPE STRING,
STKINQLTYINSPATSUPLRINBASEUOM TYPE STRING,
STKINTRANSFQTYFORSUBCONTRG TYPE STRING,
VLTDGDSRCPTBLKDSTKQTYINORDUNIT TYPE STRING,
MATLWRHSSTKQTYINMATLBASEUNIT TYPE STRING,
BASEUNIT TYPE STRING,
INSPSETPISEXISTSFORMATLPLNT TYPE STRING,
BLKDSTKISAVAILFORPLNG TYPE STRING,
STKINTRANSFISAVAILFORPLNG TYPE STRING,
RSTRCDUSESTKISRESPECTED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSTOCKQV_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_CSTOCKQV_STR-MANDT sy-vline 
WA_CSTOCKQV_STR-MATERIAL sy-vline 
WA_CSTOCKQV_STR-PLANT sy-vline 
WA_CSTOCKQV_STR-MRPAREA sy-vline 
WA_CSTOCKQV_STR-MRPTYPE sy-vline 
WA_CSTOCKQV_STR-MRPPROCEDURE sy-vline 
WA_CSTOCKQV_STR-MRPAVAILABLESTOCKQTY sy-vline 
WA_CSTOCKQV_STR-MATERIALSAFETYSTOCKQTY sy-vline 
WA_CSTOCKQV_STR-UNRESTRICTEDSTKINSTKUNIT sy-vline 
WA_CSTOCKQV_STR-QUALITYINSPECTIONSTOCKQUANTITY sy-vline 
WA_CSTOCKQV_STR-RETURNSBLOCKEDSTOCKQUANTITY sy-vline 
WA_CSTOCKQV_STR-SCHEDULEDQUANTITY sy-vline 
WA_CSTOCKQV_STR-PURCHASEORDERQTY sy-vline 
WA_CSTOCKQV_STR-REQUIREMENTQUANTITYINBASEUNIT sy-vline 
WA_CSTOCKQV_STR-TRANSFERSTOCKPLANTQUANTITY sy-vline 
WA_CSTOCKQV_STR-TRANSFERSTOCKSTORAGELOCQTY sy-vline 
WA_CSTOCKQV_STR-GOODSRECEIPTBLOCKEDSTOCKQTY sy-vline 
WA_CSTOCKQV_STR-PURORDSCHEDULEDDUEQUANTITY sy-vline 
WA_CSTOCKQV_STR-CONFIRMEDQUANTITYINBASEUNIT sy-vline 
WA_CSTOCKQV_STR-STOCKINTRANSITQUANTITY sy-vline 
WA_CSTOCKQV_STR-BLOCKEDSTOCKQUANTITY sy-vline 
WA_CSTOCKQV_STR-RESTRICTEDSTOCKQUANTITY sy-vline 
WA_CSTOCKQV_STR-CSGNMTUNRSTRCDUSESTKINBASEUOM sy-vline 
WA_CSTOCKQV_STR-CONSIGNMENTSTKQTYINQLTYINSP sy-vline 
WA_CSTOCKQV_STR-CONSIGNMENTBLKDSTKQTYINBASEUOM sy-vline 
WA_CSTOCKQV_STR-CONSIGNMENTRESTRICTEDUSESTKQTY sy-vline 
WA_CSTOCKQV_STR-UNRSTRCDUSESTKATSUPLRINBASEUOM sy-vline 
WA_CSTOCKQV_STR-STKINQLTYINSPATSUPLRINBASEUOM sy-vline 
WA_CSTOCKQV_STR-STKINTRANSFQTYFORSUBCONTRG sy-vline 
WA_CSTOCKQV_STR-VLTDGDSRCPTBLKDSTKQTYINORDUNIT sy-vline 
WA_CSTOCKQV_STR-MATLWRHSSTKQTYINMATLBASEUNIT sy-vline 
WA_CSTOCKQV_STR-BASEUNIT sy-vline 
WA_CSTOCKQV_STR-INSPSETPISEXISTSFORMATLPLNT sy-vline 
WA_CSTOCKQV_STR-BLKDSTKISAVAILFORPLNG sy-vline 
WA_CSTOCKQV_STR-STKINTRANSFISAVAILFORPLNG sy-vline 
WA_CSTOCKQV_STR-RSTRCDUSESTKISRESPECTED sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.