ABAP Select data from SAP table ISPCACST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ISPCACST 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 ISPCACST. 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 ISPCACST 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_ISPCACST TYPE STANDARD TABLE OF ISPCACST,
      WA_ISPCACST TYPE ISPCACST,
      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: <ISPCACST> TYPE ISPCACST.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISPCACST
*  INTO TABLE @DATA(IT_ISPCACST2).
*--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_ISPCACST INDEX 1 INTO DATA(WA_ISPCACST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISPCACST>-FISCVAR = 1.
<ISPCACST>-FISCPER = 1.
<ISPCACST>-CHARTACCTS = 1.
<ISPCACST>-KOKRS = 1.
<ISPCACST>-RPRCTR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISPCACST-SPRCTR, sy-vline,
  WA_ISPCACST-EPRCTR, sy-vline,
  WA_ISPCACST-RACCT, sy-vline,
  WA_ISPCACST-RBUKRS, sy-vline,
  WA_ISPCACST-SBUKRS, sy-vline,
  WA_ISPCACST-RFAREA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISPCACST 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_ISPCACST 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_ISPCACST INTO WA_ISPCACST.


*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 PERI7, internal->external for field FISCPER
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_ISPCACST-FISCPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISPCACST-FISCPER.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit SCOPE, internal->external for field RSCOPE
CALL FUNCTION 'CONVERSION_EXIT_SCOPE_OUTPUT'
  EXPORTING
    input =                      WA_ISPCACST-RSCOPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISPCACST-RSCOPE.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AC172, internal->external for field BALANCE
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_ISPCACST-BALANCE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISPCACST-BALANCE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field DEBIT
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_ISPCACST-DEBIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISPCACST-DEBIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field CREDIT
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_ISPCACST-CREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISPCACST-CREDIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field TURNOVER
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_ISPCACST-TURNOVER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISPCACST-TURNOVER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field QUANUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ISPCACST-QUANUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISPCACST-QUANUNIT.
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_ISPCACST_STR, 
FISCVAR TYPE STRING,
FISCPER TYPE STRING,
CHARTACCTS TYPE STRING,
KOKRS TYPE STRING,
RPRCTR TYPE STRING,
SPRCTR TYPE STRING,
EPRCTR TYPE STRING,
RACCT TYPE STRING,
RBUKRS TYPE STRING,
SBUKRS TYPE STRING,
RFAREA TYPE STRING,
SFAREA TYPE STRING,
RHOART TYPE STRING,
SHOART TYPE STRING,
RASSC TYPE STRING,
AFABE TYPE STRING,
VERSA TYPE STRING,
WERKS TYPE STRING,
REP_MATNR TYPE STRING,
RSCOPE TYPE STRING,
RMVCT TYPE STRING,
VALUETYPE TYPE STRING,
VALUTYP TYPE STRING,
RVERS TYPE STRING,
BALANCE TYPE STRING,
DEBIT TYPE STRING,
CREDIT TYPE STRING,
TURNOVER TYPE STRING,
CURTYPE TYPE STRING,
CURRUNIT TYPE STRING,
QUANTITY TYPE STRING,
QUANUNIT TYPE STRING,
UPMOD TYPE STRING,
RTCUR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISPCACST_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_ISPCACST_STR-FISCVAR sy-vline 
WA_ISPCACST_STR-FISCPER sy-vline 
WA_ISPCACST_STR-CHARTACCTS sy-vline 
WA_ISPCACST_STR-KOKRS sy-vline 
WA_ISPCACST_STR-RPRCTR sy-vline 
WA_ISPCACST_STR-SPRCTR sy-vline 
WA_ISPCACST_STR-EPRCTR sy-vline 
WA_ISPCACST_STR-RACCT sy-vline 
WA_ISPCACST_STR-RBUKRS sy-vline 
WA_ISPCACST_STR-SBUKRS sy-vline 
WA_ISPCACST_STR-RFAREA sy-vline 
WA_ISPCACST_STR-SFAREA sy-vline 
WA_ISPCACST_STR-RHOART sy-vline 
WA_ISPCACST_STR-SHOART sy-vline 
WA_ISPCACST_STR-RASSC sy-vline 
WA_ISPCACST_STR-AFABE sy-vline 
WA_ISPCACST_STR-VERSA sy-vline 
WA_ISPCACST_STR-WERKS sy-vline 
WA_ISPCACST_STR-REP_MATNR sy-vline 
WA_ISPCACST_STR-RSCOPE sy-vline 
WA_ISPCACST_STR-RMVCT sy-vline 
WA_ISPCACST_STR-VALUETYPE sy-vline 
WA_ISPCACST_STR-VALUTYP sy-vline 
WA_ISPCACST_STR-RVERS sy-vline 
WA_ISPCACST_STR-BALANCE sy-vline 
WA_ISPCACST_STR-DEBIT sy-vline 
WA_ISPCACST_STR-CREDIT sy-vline 
WA_ISPCACST_STR-TURNOVER sy-vline 
WA_ISPCACST_STR-CURTYPE sy-vline 
WA_ISPCACST_STR-CURRUNIT sy-vline 
WA_ISPCACST_STR-QUANTITY sy-vline 
WA_ISPCACST_STR-QUANUNIT sy-vline 
WA_ISPCACST_STR-UPMOD sy-vline 
WA_ISPCACST_STR-RTCUR sy-vline      INTO ld_text SEPARATED BY SPACE.

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