ABAP Select data from SAP table GLACCOUNT_CAREA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GLACCOUNT_CAREA
*  INTO TABLE @DATA(IT_GLACCOUNT_CAREA2).
*--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_GLACCOUNT_CAREA INDEX 1 INTO DATA(WA_GLACCOUNT_CAREA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GLACCOUNT_CAREA>-KEYY = 1.
<GLACCOUNT_CAREA>-KOKRS = 1.
<GLACCOUNT_CAREA>-SAKNR = 1.
<GLACCOUNT_CAREA>-DATA = 1.
<GLACCOUNT_CAREA>-KATYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GLACCOUNT_CAREA-MGEFL, sy-vline,
  WA_GLACCOUNT_CAREA-MSEHI, sy-vline,
  WA_GLACCOUNT_CAREA-INFO, sy-vline,
  WA_GLACCOUNT_CAREA-ERSDA, sy-vline,
  WA_GLACCOUNT_CAREA-USNAM, sy-vline,
  WA_GLACCOUNT_CAREA-FROMTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GLACCOUNT_CAREA 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_GLACCOUNT_CAREA 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_GLACCOUNT_CAREA INTO WA_GLACCOUNT_CAREA.


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

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

*Conversion exit CUNIT, internal->external for field MSEHI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_GLACCOUNT_CAREA-MSEHI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLACCOUNT_CAREA-MSEHI.
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_GLACCOUNT_CAREA_STR, 
KEYY TYPE STRING,
KOKRS TYPE STRING,
SAKNR TYPE STRING,
DATA TYPE STRING,
KATYP TYPE STRING,
MGEFL TYPE STRING,
MSEHI TYPE STRING,
INFO TYPE STRING,
ERSDA TYPE STRING,
USNAM TYPE STRING,
FROMTO TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
ACTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GLACCOUNT_CAREA_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_GLACCOUNT_CAREA_STR-KEYY sy-vline 
WA_GLACCOUNT_CAREA_STR-KOKRS sy-vline 
WA_GLACCOUNT_CAREA_STR-SAKNR sy-vline 
WA_GLACCOUNT_CAREA_STR-DATA sy-vline 
WA_GLACCOUNT_CAREA_STR-KATYP sy-vline 
WA_GLACCOUNT_CAREA_STR-MGEFL sy-vline 
WA_GLACCOUNT_CAREA_STR-MSEHI sy-vline 
WA_GLACCOUNT_CAREA_STR-INFO sy-vline 
WA_GLACCOUNT_CAREA_STR-ERSDA sy-vline 
WA_GLACCOUNT_CAREA_STR-USNAM sy-vline 
WA_GLACCOUNT_CAREA_STR-FROMTO sy-vline 
WA_GLACCOUNT_CAREA_STR-DATAB sy-vline 
WA_GLACCOUNT_CAREA_STR-DATBI sy-vline 
WA_GLACCOUNT_CAREA_STR-ACTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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