ABAP Select data from SAP table GLACCOUNT_SCREEN_CCODE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GLACCOUNT_SCREEN_CCODE 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_SCREEN_CCODE. 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_SCREEN_CCODE 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_SCREEN_CCODE TYPE STANDARD TABLE OF GLACCOUNT_SCREEN_CCODE,
      WA_GLACCOUNT_SCREEN_CCODE TYPE GLACCOUNT_SCREEN_CCODE,
      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_SCREEN_CCODE> TYPE GLACCOUNT_SCREEN_CCODE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GLACCOUNT_SCREEN_CCODE
*  INTO TABLE @DATA(IT_GLACCOUNT_SCREEN_CCODE2).
*--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_SCREEN_CCODE INDEX 1 INTO DATA(WA_GLACCOUNT_SCREEN_CCODE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GLACCOUNT_SCREEN_CCODE>-SAKNR = 1.
<GLACCOUNT_SCREEN_CCODE>-BUKRS = 1.
<GLACCOUNT_SCREEN_CCODE>-KTOPL = 1.
<GLACCOUNT_SCREEN_CCODE>-KTOPL_ALTKT = 1.
<GLACCOUNT_SCREEN_CCODE>-LAND1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GLACCOUNT_SCREEN_CCODE-FIKRS, sy-vline,
  WA_GLACCOUNT_SCREEN_CCODE-FSTVA, sy-vline,
  WA_GLACCOUNT_SCREEN_CCODE-WAERS, sy-vline,
  WA_GLACCOUNT_SCREEN_CCODE-XSALH, sy-vline,
  WA_GLACCOUNT_SCREEN_CCODE-KDFSL, sy-vline,
  WA_GLACCOUNT_SCREEN_CCODE-BEWGP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GLACCOUNT_SCREEN_CCODE 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_SCREEN_CCODE 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_SCREEN_CCODE INTO WA_GLACCOUNT_SCREEN_CCODE.


*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_SCREEN_CCODE-SAKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLACCOUNT_SCREEN_CCODE-SAKNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_GLACCOUNT_SCREEN_CCODE-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLACCOUNT_SCREEN_CCODE-FIPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GLACCOUNT_SCREEN_CCODE-RECID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLACCOUNT_SCREEN_CCODE-RECID.
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_SCREEN_CCODE_STR, 
SAKNR TYPE STRING,
BUKRS TYPE STRING,
KTOPL TYPE STRING,
KTOPL_ALTKT TYPE STRING,
LAND1 TYPE STRING,
FIKRS TYPE STRING,
FSTVA TYPE STRING,
WAERS TYPE STRING,
XSALH TYPE STRING,
KDFSL TYPE STRING,
BEWGP TYPE STRING,
MWSKZ TYPE STRING,
XMWNO TYPE STRING,
MITKZ TYPE STRING,
ALTKT TYPE STRING,
WMETH TYPE STRING,
INFKY TYPE STRING,
TOGRU TYPE STRING,
XOPVW TYPE STRING,
XKRES TYPE STRING,
ZUAWA TYPE STRING,
BEGRU TYPE STRING,
BUSAB TYPE STRING,
FSTAG TYPE STRING,
XINTB TYPE STRING,
XNKON TYPE STRING,
XMITK TYPE STRING,
FDLEV TYPE STRING,
XGKON TYPE STRING,
FIPOS TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
VZSKZ TYPE STRING,
ZINDT TYPE STRING,
ZINRT TYPE STRING,
DATLZ TYPE STRING,
RECID TYPE STRING,
XSPEB TYPE STRING,
XLOEB TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
KOKRS TYPE STRING,
XLGCLR TYPE STRING,
X_UJ_CLR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GLACCOUNT_SCREEN_CCODE_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_SCREEN_CCODE_STR-SAKNR sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-BUKRS sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-KTOPL sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-KTOPL_ALTKT sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-LAND1 sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-FIKRS sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-FSTVA sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-WAERS sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-XSALH sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-KDFSL sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-BEWGP sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-MWSKZ sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-XMWNO sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-MITKZ sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-ALTKT sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-WMETH sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-INFKY sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-TOGRU sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-XOPVW sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-XKRES sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-ZUAWA sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-BEGRU sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-BUSAB sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-FSTAG sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-XINTB sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-XNKON sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-XMITK sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-FDLEV sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-XGKON sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-FIPOS sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-HBKID sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-HKTID sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-VZSKZ sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-ZINDT sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-ZINRT sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-DATLZ sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-RECID sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-XSPEB sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-XLOEB sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-ERDAT sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-ERNAM sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-KOKRS sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-XLGCLR sy-vline 
WA_GLACCOUNT_SCREEN_CCODE_STR-X_UJ_CLR sy-vline      INTO ld_text SEPARATED BY SPACE.

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