ABAP Select data from SAP table GLE_ADB_CGRVAR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GLE_ADB_CGRVAR
*  INTO TABLE @DATA(IT_GLE_ADB_CGRVAR2).
*--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_GLE_ADB_CGRVAR INDEX 1 INTO DATA(WA_GLE_ADB_CGRVAR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GLE_ADB_CGRVAR>-MANDT = 1.
<GLE_ADB_CGRVAR>-GVAR = 1.
<GLE_ADB_CGRVAR>-DIMEN = 1.
<GLE_ADB_CGRVAR>-CGROUP = 1.
<GLE_ADB_CGRVAR>-AVERS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GLE_ADB_CGRVAR-ITCLG, sy-vline,
  WA_GLE_ADB_CGRVAR-MVERS, sy-vline,
  WA_GLE_ADB_CGRVAR-QVERS, sy-vline,
  WA_GLE_ADB_CGRVAR-YVERS, sy-vline,
  WA_GLE_ADB_CGRVAR-TOLR, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_GLE_ADB_CGRVAR 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_GLE_ADB_CGRVAR 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_GLE_ADB_CGRVAR INTO WA_GLE_ADB_CGRVAR.


*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 AFIMC, internal->external for field CGROUP
CALL FUNCTION 'CONVERSION_EXIT_AFIMC_OUTPUT'
  EXPORTING
    input =                      WA_GLE_ADB_CGRVAR-CGROUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_ADB_CGRVAR-CGROUP.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field YVERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GLE_ADB_CGRVAR-YVERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLE_ADB_CGRVAR-YVERS.
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_GLE_ADB_CGRVAR_STR, 
MANDT TYPE STRING,
GVAR TYPE STRING,
DIMEN TYPE STRING,
CGROUP TYPE STRING,
AVERS TYPE STRING,
ITCLG TYPE STRING,
MVERS TYPE STRING,
QVERS TYPE STRING,
YVERS TYPE STRING,
TOLR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GLE_ADB_CGRVAR_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_GLE_ADB_CGRVAR_STR-MANDT sy-vline 
WA_GLE_ADB_CGRVAR_STR-GVAR sy-vline 
WA_GLE_ADB_CGRVAR_STR-DIMEN sy-vline 
WA_GLE_ADB_CGRVAR_STR-CGROUP sy-vline 
WA_GLE_ADB_CGRVAR_STR-AVERS sy-vline 
WA_GLE_ADB_CGRVAR_STR-ITCLG sy-vline 
WA_GLE_ADB_CGRVAR_STR-MVERS sy-vline 
WA_GLE_ADB_CGRVAR_STR-QVERS sy-vline 
WA_GLE_ADB_CGRVAR_STR-YVERS sy-vline 
WA_GLE_ADB_CGRVAR_STR-TOLR sy-vline      INTO ld_text SEPARATED BY SPACE.

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