ABAP Select data from SAP table BAPICATS3 into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BAPICATS3 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 BAPICATS3. 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 BAPICATS3 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_BAPICATS3 TYPE STANDARD TABLE OF BAPICATS3,
      WA_BAPICATS3 TYPE BAPICATS3,
      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: <BAPICATS3> TYPE BAPICATS3.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BAPICATS3.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BAPICATS3
  INTO TABLE IT_BAPICATS3.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPICATS3
*  INTO TABLE @DATA(IT_BAPICATS32).
*--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_BAPICATS3 INDEX 1 INTO DATA(WA_BAPICATS32).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BAPICATS3 ASSIGNING <BAPICATS3>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPICATS3>-COUNTER = 1.
<BAPICATS3>-WORKDATE = 1.
<BAPICATS3>-EMPLOYEENUMBER = 1.
<BAPICATS3>-SEND_CCTR = 1.
<BAPICATS3>-SENBUSPROC = 1.

ENDLOOP.

LOOP AT IT_BAPICATS3 INTO WA_BAPICATS3.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPICATS3-ACTTYPE, sy-vline,
  WA_BAPICATS3-PO_NUMBER, sy-vline,
  WA_BAPICATS3-PO_ITEM, sy-vline,
  WA_BAPICATS3-SERVICE, sy-vline,
  WA_BAPICATS3-REC_CCTR, sy-vline,
  WA_BAPICATS3-REC_ORDER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPICATS3 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_BAPICATS3 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_BAPICATS3 INTO WA_BAPICATS3.


*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 ALPHA, internal->external for field SEND_CCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-SEND_CCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-SEND_CCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SENBUSPROC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-SENBUSPROC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-SENBUSPROC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PO_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-PO_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-PO_NUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SERVICE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-SERVICE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-SERVICE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REC_CCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-REC_CCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-REC_CCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REC_ORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-REC_ORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-REC_ORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NETWORK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-NETWORK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-NETWORK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field ACTIVITY
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-ACTIVITY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-ACTIVITY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field SUB_ACTIVITY
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-SUB_ACTIVITY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-SUB_ACTIVITY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field WBS_ELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-WBS_ELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-WBS_ELEMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECSALEORD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-RECSALEORD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-RECSALEORD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECBUSPROC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-RECBUSPROC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-RECBUSPROC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EXTSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-EXTSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-EXTSYSTEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EXTSYSTEM_OLD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-EXTSYSTEM_OLD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-EXTSYSTEM_OLD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNITQ
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-UNITQ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-UNITQ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-GRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEND_GRANT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPICATS3-SEND_GRANT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPICATS3-SEND_GRANT.
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_BAPICATS3_STR, 
COUNTER TYPE STRING,
WORKDATE TYPE STRING,
EMPLOYEENUMBER TYPE STRING,
SEND_CCTR TYPE STRING,
SENBUSPROC TYPE STRING,
ACTTYPE TYPE STRING,
PO_NUMBER TYPE STRING,
PO_ITEM TYPE STRING,
SERVICE TYPE STRING,
REC_CCTR TYPE STRING,
REC_ORDER TYPE STRING,
NETWORK TYPE STRING,
ACTIVITY TYPE STRING,
SUB_ACTIVITY TYPE STRING,
CAPA_CATEGORY TYPE STRING,
SPLIT TYPE STRING,
WORK_CNTR TYPE STRING,
WBS_ELEMENT TYPE STRING,
RECSALEORD TYPE STRING,
RECITEM TYPE STRING,
RECCOSTOBJ TYPE STRING,
RECBUSPROC TYPE STRING,
ABS_ATT_TYPE TYPE STRING,
WAGETYPE TYPE STRING,
TRIPNO TYPE STRING,
OT_COMP_TYPE TYPE STRING,
WORKTAXAREA TYPE STRING,
VALUATION_BASIS TYPE STRING,
CURRENCY TYPE STRING,
CURRENCY_ISO TYPE STRING,
EXTRA_PAY_INDIC TYPE STRING,
PAYSCALEGROUP TYPE STRING,
PAYSCALELEVEL TYPE STRING,
BONUSTYPE TYPE STRING,
BONUSVALUE TYPE STRING,
POSITION TYPE STRING,
CO_AREA TYPE STRING,
TRANS_CURR TYPE STRING,
TRANS_CURR_ISO TYPE STRING,
PRICE TYPE STRING,
PLANT TYPE STRING,
CALC_MOTIVE TYPE STRING,
CATSHOURS TYPE STRING,
UNIT TYPE STRING,
ISOCODE_UNIT TYPE STRING,
STARTTIME TYPE STRING,
ENDTIME TYPE STRING,
PREVIOUS_DAY TYPE STRING,
ALL_DAY_FLAG TYPE STRING,
REM_WORK TYPE STRING,
FCST_FIN_DATE TYPE STRING,
FIN_CONF TYPE STRING,
SHORTTEXT TYPE STRING,
PART_CONF TYPE STRING,
EXTSYSTEM TYPE STRING,
EXTAPPLICATION TYPE STRING,
EXTDOCUMENTNO TYPE STRING,
EXTSYSTEM_OLD TYPE STRING,
EXTAPPLICATION_OLD TYPE STRING,
EXTDOCUMENTNO_OLD TYPE STRING,
STATKEYFIG TYPE STRING,
QUANTITY TYPE STRING,
UNITQ TYPE STRING,
ISO_UNITQ TYPE STRING,
AMOUNT TYPE STRING,
LONGTEXT TYPE STRING,
FUND TYPE STRING,
FUNC_AREA TYPE STRING,
GRANT_NBR TYPE STRING,
SEND_FUND TYPE STRING,
SEND_FUNCTION TYPE STRING,
SEND_GRANT TYPE STRING,
CPR_GUID TYPE STRING,
CPR_EXTID TYPE STRING,
CPR_OBJGUID TYPE STRING,
CPR_OBJGEXTID TYPE STRING,
CPR_OBJTYPE TYPE STRING,
FUND_LONG TYPE STRING,
SEND_FUND_LONG TYPE STRING,
BUDGET_PERIOD TYPE STRING,
SEND_BUDGET_PERIOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPICATS3_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_BAPICATS3_STR-COUNTER sy-vline 
WA_BAPICATS3_STR-WORKDATE sy-vline 
WA_BAPICATS3_STR-EMPLOYEENUMBER sy-vline 
WA_BAPICATS3_STR-SEND_CCTR sy-vline 
WA_BAPICATS3_STR-SENBUSPROC sy-vline 
WA_BAPICATS3_STR-ACTTYPE sy-vline 
WA_BAPICATS3_STR-PO_NUMBER sy-vline 
WA_BAPICATS3_STR-PO_ITEM sy-vline 
WA_BAPICATS3_STR-SERVICE sy-vline 
WA_BAPICATS3_STR-REC_CCTR sy-vline 
WA_BAPICATS3_STR-REC_ORDER sy-vline 
WA_BAPICATS3_STR-NETWORK sy-vline 
WA_BAPICATS3_STR-ACTIVITY sy-vline 
WA_BAPICATS3_STR-SUB_ACTIVITY sy-vline 
WA_BAPICATS3_STR-CAPA_CATEGORY sy-vline 
WA_BAPICATS3_STR-SPLIT sy-vline 
WA_BAPICATS3_STR-WORK_CNTR sy-vline 
WA_BAPICATS3_STR-WBS_ELEMENT sy-vline 
WA_BAPICATS3_STR-RECSALEORD sy-vline 
WA_BAPICATS3_STR-RECITEM sy-vline 
WA_BAPICATS3_STR-RECCOSTOBJ sy-vline 
WA_BAPICATS3_STR-RECBUSPROC sy-vline 
WA_BAPICATS3_STR-ABS_ATT_TYPE sy-vline 
WA_BAPICATS3_STR-WAGETYPE sy-vline 
WA_BAPICATS3_STR-TRIPNO sy-vline 
WA_BAPICATS3_STR-OT_COMP_TYPE sy-vline 
WA_BAPICATS3_STR-WORKTAXAREA sy-vline 
WA_BAPICATS3_STR-VALUATION_BASIS sy-vline 
WA_BAPICATS3_STR-CURRENCY sy-vline 
WA_BAPICATS3_STR-CURRENCY_ISO sy-vline 
WA_BAPICATS3_STR-EXTRA_PAY_INDIC sy-vline 
WA_BAPICATS3_STR-PAYSCALEGROUP sy-vline 
WA_BAPICATS3_STR-PAYSCALELEVEL sy-vline 
WA_BAPICATS3_STR-BONUSTYPE sy-vline 
WA_BAPICATS3_STR-BONUSVALUE sy-vline 
WA_BAPICATS3_STR-POSITION sy-vline 
WA_BAPICATS3_STR-CO_AREA sy-vline 
WA_BAPICATS3_STR-TRANS_CURR sy-vline 
WA_BAPICATS3_STR-TRANS_CURR_ISO sy-vline 
WA_BAPICATS3_STR-PRICE sy-vline 
WA_BAPICATS3_STR-PLANT sy-vline 
WA_BAPICATS3_STR-CALC_MOTIVE sy-vline 
WA_BAPICATS3_STR-CATSHOURS sy-vline 
WA_BAPICATS3_STR-UNIT sy-vline 
WA_BAPICATS3_STR-ISOCODE_UNIT sy-vline 
WA_BAPICATS3_STR-STARTTIME sy-vline 
WA_BAPICATS3_STR-ENDTIME sy-vline 
WA_BAPICATS3_STR-PREVIOUS_DAY sy-vline 
WA_BAPICATS3_STR-ALL_DAY_FLAG sy-vline 
WA_BAPICATS3_STR-REM_WORK sy-vline 
WA_BAPICATS3_STR-FCST_FIN_DATE sy-vline 
WA_BAPICATS3_STR-FIN_CONF sy-vline 
WA_BAPICATS3_STR-SHORTTEXT sy-vline 
WA_BAPICATS3_STR-PART_CONF sy-vline 
WA_BAPICATS3_STR-EXTSYSTEM sy-vline 
WA_BAPICATS3_STR-EXTAPPLICATION sy-vline 
WA_BAPICATS3_STR-EXTDOCUMENTNO sy-vline 
WA_BAPICATS3_STR-EXTSYSTEM_OLD sy-vline 
WA_BAPICATS3_STR-EXTAPPLICATION_OLD sy-vline 
WA_BAPICATS3_STR-EXTDOCUMENTNO_OLD sy-vline 
WA_BAPICATS3_STR-STATKEYFIG sy-vline 
WA_BAPICATS3_STR-QUANTITY sy-vline 
WA_BAPICATS3_STR-UNITQ sy-vline 
WA_BAPICATS3_STR-ISO_UNITQ sy-vline 
WA_BAPICATS3_STR-AMOUNT sy-vline 
WA_BAPICATS3_STR-LONGTEXT sy-vline 
WA_BAPICATS3_STR-FUND sy-vline 
WA_BAPICATS3_STR-FUNC_AREA sy-vline 
WA_BAPICATS3_STR-GRANT_NBR sy-vline 
WA_BAPICATS3_STR-SEND_FUND sy-vline 
WA_BAPICATS3_STR-SEND_FUNCTION sy-vline 
WA_BAPICATS3_STR-SEND_GRANT sy-vline 
WA_BAPICATS3_STR-CPR_GUID sy-vline 
WA_BAPICATS3_STR-CPR_EXTID sy-vline 
WA_BAPICATS3_STR-CPR_OBJGUID sy-vline 
WA_BAPICATS3_STR-CPR_OBJGEXTID sy-vline 
WA_BAPICATS3_STR-CPR_OBJTYPE sy-vline 
WA_BAPICATS3_STR-FUND_LONG sy-vline 
WA_BAPICATS3_STR-SEND_FUND_LONG sy-vline 
WA_BAPICATS3_STR-BUDGET_PERIOD sy-vline 
WA_BAPICATS3_STR-SEND_BUDGET_PERIOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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