ABAP Select data from SAP table PCASRELGMDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCASRELGMDATA
*  INTO TABLE @DATA(IT_PCASRELGMDATA2).
*--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_PCASRELGMDATA INDEX 1 INTO DATA(WA_PCASRELGMDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCASRELGMDATA>-MANDT = 1.
<PCASRELGMDATA>-PRICINGKEY = 1.
<PCASRELGMDATA>-VERSION = 1.
<PCASRELGMDATA>-PRICINGDOCUMENTITEM = 1.
<PCASRELGMDATA>-CONDITIONTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCASRELGMDATA-SUBCONDITIONTYPE, sy-vline,
  WA_PCASRELGMDATA-VERSSTOCKRECORDUUID, sy-vline,
  WA_PCASRELGMDATA-SOURCEDOCUMENT, sy-vline,
  WA_PCASRELGMDATA-SOURCEDOCUMENTIN10CHARACTERS, sy-vline,
  WA_PCASRELGMDATA-SOURCEDOCUMENTITEM, sy-vline,
  WA_PCASRELGMDATA-SOURCEDOCUMENTYEAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCASRELGMDATA 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_PCASRELGMDATA 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_PCASRELGMDATA INTO WA_PCASRELGMDATA.


*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 SOURCEDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCASRELGMDATA-SOURCEDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCASRELGMDATA-SOURCEDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SOURCEDOCUMENTIN10CHARACTERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCASRELGMDATA-SOURCEDOCUMENTIN10CHARACTERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCASRELGMDATA-SOURCEDOCUMENTIN10CHARACTERS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field SOURCEDOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PCASRELGMDATA-SOURCEDOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCASRELGMDATA-SOURCEDOCUMENTYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DELIVERYDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCASRELGMDATA-DELIVERYDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCASRELGMDATA-DELIVERYDOCUMENT.
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_PCASRELGMDATA_STR, 
MANDT TYPE STRING,
PRICINGKEY TYPE STRING,
VERSION TYPE STRING,
PRICINGDOCUMENTITEM TYPE STRING,
CONDITIONTYPE TYPE STRING,
SUBCONDITIONTYPE TYPE STRING,
VERSSTOCKRECORDUUID TYPE STRING,
SOURCEDOCUMENT TYPE STRING,
SOURCEDOCUMENTIN10CHARACTERS TYPE STRING,
SOURCEDOCUMENTITEM TYPE STRING,
SOURCEDOCUMENTYEAR TYPE STRING,
GOODSMOVEMENTTYPE TYPE STRING,
SCENARIOISNONCASRELEVANT TYPE STRING,
DELIVERYDOCUMENT TYPE STRING,
DELIVERYDOCUMENTITEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCASRELGMDATA_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_PCASRELGMDATA_STR-MANDT sy-vline 
WA_PCASRELGMDATA_STR-PRICINGKEY sy-vline 
WA_PCASRELGMDATA_STR-VERSION sy-vline 
WA_PCASRELGMDATA_STR-PRICINGDOCUMENTITEM sy-vline 
WA_PCASRELGMDATA_STR-CONDITIONTYPE sy-vline 
WA_PCASRELGMDATA_STR-SUBCONDITIONTYPE sy-vline 
WA_PCASRELGMDATA_STR-VERSSTOCKRECORDUUID sy-vline 
WA_PCASRELGMDATA_STR-SOURCEDOCUMENT sy-vline 
WA_PCASRELGMDATA_STR-SOURCEDOCUMENTIN10CHARACTERS sy-vline 
WA_PCASRELGMDATA_STR-SOURCEDOCUMENTITEM sy-vline 
WA_PCASRELGMDATA_STR-SOURCEDOCUMENTYEAR sy-vline 
WA_PCASRELGMDATA_STR-GOODSMOVEMENTTYPE sy-vline 
WA_PCASRELGMDATA_STR-SCENARIOISNONCASRELEVANT sy-vline 
WA_PCASRELGMDATA_STR-DELIVERYDOCUMENT sy-vline 
WA_PCASRELGMDATA_STR-DELIVERYDOCUMENTITEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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