ABAP Select data from SAP table GLT0S into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GLT0S 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 GLT0S. 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 GLT0S 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_GLT0S TYPE STANDARD TABLE OF GLT0S,
      WA_GLT0S TYPE GLT0S,
      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: <GLT0S> TYPE GLT0S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_GLT0S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM GLT0S
  INTO TABLE IT_GLT0S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GLT0S
*  INTO TABLE @DATA(IT_GLT0S2).
*--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_GLT0S INDEX 1 INTO DATA(WA_GLT0S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_GLT0S ASSIGNING <GLT0S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GLT0S>-ID = 1.
<GLT0S>-VERSN = 1.
<GLT0S>-ERGSL = 1.
<GLT0S>-CURTP = 1.
<GLT0S>-WAERS = 1.

ENDLOOP.

LOOP AT IT_GLT0S INTO WA_GLT0S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GLT0S-KTOPL, sy-vline,
  WA_GLT0S-SAK_PLUMI, sy-vline,
  WA_GLT0S-SAKFB_LONG, sy-vline,
  WA_GLT0S-KKTPL, sy-vline,
  WA_GLT0S-BILKT, sy-vline,
  WA_GLT0S-KTOP2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GLT0S 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_GLT0S 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_GLT0S INTO WA_GLT0S.


*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 RRSAK, internal->external for field SAK_PLUMI
CALL FUNCTION 'CONVERSION_EXIT_RRSAK_OUTPUT'
  EXPORTING
    input =                      WA_GLT0S-SAK_PLUMI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLT0S-SAK_PLUMI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit RRSAK, internal->external for field SAKFB_LONG
CALL FUNCTION 'CONVERSION_EXIT_RRSAK_OUTPUT'
  EXPORTING
    input =                      WA_GLT0S-SAKFB_LONG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLT0S-SAKFB_LONG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BILKT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GLT0S-BILKT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLT0S-BILKT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ALTKT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GLT0S-ALTKT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLT0S-ALTKT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GLT0S-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLT0S-RLDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RVERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GLT0S-RVERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLT0S-RVERS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field RYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_GLT0S-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLT0S-RYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RACCT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GLT0S-RACCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLT0S-RACCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field PERIO
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_GLT0S-PERIO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLT0S-PERIO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field WERTB
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_GLT0S-WERTB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLT0S-WERTB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field WERTE
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_GLT0S-WERTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLT0S-WERTE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field UMSAV
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_GLT0S-UMSAV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLT0S-UMSAV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field UMSOL
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_GLT0S-UMSOL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLT0S-UMSOL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field UMHAB
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_GLT0S-UMHAB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLT0S-UMHAB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field UMPER
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_GLT0S-UMPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLT0S-UMPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field KUMSL
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_GLT0S-KUMSL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GLT0S-KUMSL.
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_GLT0S_STR, 
ID TYPE STRING,
VERSN TYPE STRING,
ERGSL TYPE STRING,
CURTP TYPE STRING,
WAERS TYPE STRING,
KTOPL TYPE STRING,
SAK_PLUMI TYPE STRING,
SAKFB_LONG TYPE STRING,
KKTPL TYPE STRING,
BILKT TYPE STRING,
KTOP2 TYPE STRING,
ALTKT TYPE STRING,
RKTPL TYPE STRING,
ADB_PFROM TYPE STRING,
ADB_PTO TYPE STRING,
RLDNR TYPE STRING,
RRCTY TYPE STRING,
RVERS TYPE STRING,
BUKRS TYPE STRING,
RYEAR TYPE STRING,
RACCT TYPE STRING,
RBUSA TYPE STRING,
RTCUR TYPE STRING,
DRCRK TYPE STRING,
POPER TYPE STRING,
MAXPER TYPE STRING,
PERIO TYPE STRING,
WERTB TYPE STRING,
WERTE TYPE STRING,
UMSAV TYPE STRING,
UMSOL TYPE STRING,
UMHAB TYPE STRING,
UMPER TYPE STRING,
KUMSL TYPE STRING,
MENGP TYPE STRING,
MENGK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GLT0S_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_GLT0S_STR-ID sy-vline 
WA_GLT0S_STR-VERSN sy-vline 
WA_GLT0S_STR-ERGSL sy-vline 
WA_GLT0S_STR-CURTP sy-vline 
WA_GLT0S_STR-WAERS sy-vline 
WA_GLT0S_STR-KTOPL sy-vline 
WA_GLT0S_STR-SAK_PLUMI sy-vline 
WA_GLT0S_STR-SAKFB_LONG sy-vline 
WA_GLT0S_STR-KKTPL sy-vline 
WA_GLT0S_STR-BILKT sy-vline 
WA_GLT0S_STR-KTOP2 sy-vline 
WA_GLT0S_STR-ALTKT sy-vline 
WA_GLT0S_STR-RKTPL sy-vline 
WA_GLT0S_STR-ADB_PFROM sy-vline 
WA_GLT0S_STR-ADB_PTO sy-vline 
WA_GLT0S_STR-RLDNR sy-vline 
WA_GLT0S_STR-RRCTY sy-vline 
WA_GLT0S_STR-RVERS sy-vline 
WA_GLT0S_STR-BUKRS sy-vline 
WA_GLT0S_STR-RYEAR sy-vline 
WA_GLT0S_STR-RACCT sy-vline 
WA_GLT0S_STR-RBUSA sy-vline 
WA_GLT0S_STR-RTCUR sy-vline 
WA_GLT0S_STR-DRCRK sy-vline 
WA_GLT0S_STR-POPER sy-vline 
WA_GLT0S_STR-MAXPER sy-vline 
WA_GLT0S_STR-PERIO sy-vline 
WA_GLT0S_STR-WERTB sy-vline 
WA_GLT0S_STR-WERTE sy-vline 
WA_GLT0S_STR-UMSAV sy-vline 
WA_GLT0S_STR-UMSOL sy-vline 
WA_GLT0S_STR-UMHAB sy-vline 
WA_GLT0S_STR-UMPER sy-vline 
WA_GLT0S_STR-KUMSL sy-vline 
WA_GLT0S_STR-MENGP sy-vline 
WA_GLT0S_STR-MENGK sy-vline      INTO ld_text SEPARATED BY SPACE.

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