ABAP Select data from SAP table GMBDGT_S_LINES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GMBDGT_S_LINES
*  INTO TABLE @DATA(IT_GMBDGT_S_LINES2).
*--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_GMBDGT_S_LINES INDEX 1 INTO DATA(WA_GMBDGT_S_LINES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GMBDGT_S_LINES>-BUKRS = 1.
<GMBDGT_S_LINES>-BDGT_VERSION = 1.
<GMBDGT_S_LINES>-ENTRY_DATE = 1.
<GMBDGT_S_LINES>-ENTRY_TIME = 1.
<GMBDGT_S_LINES>-ENTRY_USER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GMBDGT_S_LINES-APPROVAL_DATE, sy-vline,
  WA_GMBDGT_S_LINES-APPROVAL_TIME, sy-vline,
  WA_GMBDGT_S_LINES-DOC_DATE, sy-vline,
  WA_GMBDGT_S_LINES-POSTING_DATE, sy-vline,
  WA_GMBDGT_S_LINES-WAERS, sy-vline,
  WA_GMBDGT_S_LINES-BDGT_VLDTY_NBR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GMBDGT_S_LINES 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_GMBDGT_S_LINES 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_GMBDGT_S_LINES INTO WA_GMBDGT_S_LINES.


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

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

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

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

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

*Conversion exit GJAHR, internal->external for field GRANTEE_FY
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_GMBDGT_S_LINES-GRANTEE_FY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMBDGT_S_LINES-GRANTEE_FY.
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_GMBDGT_S_LINES_STR, 
BUKRS TYPE STRING,
BDGT_VERSION TYPE STRING,
ENTRY_DATE TYPE STRING,
ENTRY_TIME TYPE STRING,
ENTRY_USER TYPE STRING,
APPROVAL_DATE TYPE STRING,
APPROVAL_TIME TYPE STRING,
DOC_DATE TYPE STRING,
POSTING_DATE TYPE STRING,
WAERS TYPE STRING,
BDGT_VLDTY_NBR TYPE STRING,
GRANT_NBR TYPE STRING,
SPONSORED_PROG TYPE STRING,
SPONSORED_CLASS TYPE STRING,
FUND TYPE STRING,
AMOUNT TYPE STRING,
TEXT TYPE STRING,
REFDOCNR TYPE STRING,
REFDOCLN TYPE STRING,
PROCESS TYPE STRING,
LOGSYS TYPE STRING,
VALUETYPE TYPE STRING,
LINE TYPE STRING,
RYEAR TYPE STRING,
RPMAX TYPE STRING,
OFFSET TYPE STRING,
BDGT_STATE TYPE STRING,
LOCAL_AMOUNT TYPE STRING,
GRANTEE_FY TYPE STRING,
AWORG TYPE STRING,
AWTYP TYPE STRING,
FLG_UNDO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GMBDGT_S_LINES_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_GMBDGT_S_LINES_STR-BUKRS sy-vline 
WA_GMBDGT_S_LINES_STR-BDGT_VERSION sy-vline 
WA_GMBDGT_S_LINES_STR-ENTRY_DATE sy-vline 
WA_GMBDGT_S_LINES_STR-ENTRY_TIME sy-vline 
WA_GMBDGT_S_LINES_STR-ENTRY_USER sy-vline 
WA_GMBDGT_S_LINES_STR-APPROVAL_DATE sy-vline 
WA_GMBDGT_S_LINES_STR-APPROVAL_TIME sy-vline 
WA_GMBDGT_S_LINES_STR-DOC_DATE sy-vline 
WA_GMBDGT_S_LINES_STR-POSTING_DATE sy-vline 
WA_GMBDGT_S_LINES_STR-WAERS sy-vline 
WA_GMBDGT_S_LINES_STR-BDGT_VLDTY_NBR sy-vline 
WA_GMBDGT_S_LINES_STR-GRANT_NBR sy-vline 
WA_GMBDGT_S_LINES_STR-SPONSORED_PROG sy-vline 
WA_GMBDGT_S_LINES_STR-SPONSORED_CLASS sy-vline 
WA_GMBDGT_S_LINES_STR-FUND sy-vline 
WA_GMBDGT_S_LINES_STR-AMOUNT sy-vline 
WA_GMBDGT_S_LINES_STR-TEXT sy-vline 
WA_GMBDGT_S_LINES_STR-REFDOCNR sy-vline 
WA_GMBDGT_S_LINES_STR-REFDOCLN sy-vline 
WA_GMBDGT_S_LINES_STR-PROCESS sy-vline 
WA_GMBDGT_S_LINES_STR-LOGSYS sy-vline 
WA_GMBDGT_S_LINES_STR-VALUETYPE sy-vline 
WA_GMBDGT_S_LINES_STR-LINE sy-vline 
WA_GMBDGT_S_LINES_STR-RYEAR sy-vline 
WA_GMBDGT_S_LINES_STR-RPMAX sy-vline 
WA_GMBDGT_S_LINES_STR-OFFSET sy-vline 
WA_GMBDGT_S_LINES_STR-BDGT_STATE sy-vline 
WA_GMBDGT_S_LINES_STR-LOCAL_AMOUNT sy-vline 
WA_GMBDGT_S_LINES_STR-GRANTEE_FY sy-vline 
WA_GMBDGT_S_LINES_STR-AWORG sy-vline 
WA_GMBDGT_S_LINES_STR-AWTYP sy-vline 
WA_GMBDGT_S_LINES_STR-FLG_UNDO sy-vline      INTO ld_text SEPARATED BY SPACE.

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