ABAP Select data from SAP table GMHBDGTLINE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GMHBDGTLINE
*  INTO TABLE @DATA(IT_GMHBDGTLINE2).
*--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_GMHBDGTLINE INDEX 1 INTO DATA(WA_GMHBDGTLINE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GMHBDGTLINE>-CLIENT = 1.
<GMHBDGTLINE>-OWNER_USER = 1.
<GMHBDGTLINE>-BDGT_DOC_NBR = 1.
<GMHBDGTLINE>-LINE = 1.
<GMHBDGTLINE>-GRANT_NBR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GMHBDGTLINE-BDGT_VLDTY_NBR, sy-vline,
  WA_GMHBDGTLINE-SPONSORED_PROG, sy-vline,
  WA_GMHBDGTLINE-SPONSORED_CLASS, sy-vline,
  WA_GMHBDGTLINE-FIN_OBJECT_TYPE, sy-vline,
  WA_GMHBDGTLINE-FINANCING_OBJECT, sy-vline,
  WA_GMHBDGTLINE-FUND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GMHBDGTLINE 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_GMHBDGTLINE 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_GMHBDGTLINE INTO WA_GMHBDGTLINE.


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

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_GMHBDGTLINE-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMHBDGTLINE-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_OF_MEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_GMHBDGTLINE-UNIT_OF_MEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMHBDGTLINE-UNIT_OF_MEASURE.
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_GMHBDGTLINE_STR, 
CLIENT TYPE STRING,
OWNER_USER TYPE STRING,
BDGT_DOC_NBR TYPE STRING,
LINE TYPE STRING,
GRANT_NBR TYPE STRING,
BDGT_VLDTY_NBR TYPE STRING,
SPONSORED_PROG TYPE STRING,
SPONSORED_CLASS TYPE STRING,
FIN_OBJECT_TYPE TYPE STRING,
FINANCING_OBJECT TYPE STRING,
FUND TYPE STRING,
AMOUNT TYPE STRING,
PERC_IDC TYPE STRING,
AMOUNT_IDC TYPE STRING,
TOTAL_AWARD TYPE STRING,
PERC_CSH TYPE STRING,
AMOUNT_CSH TYPE STRING,
TOTAL_AMOUNT TYPE STRING,
TEXT TYPE STRING,
PROCESS TYPE STRING,
VALUETYPE TYPE STRING,
POSTING_DATE TYPE STRING,
GRANTEE_FY TYPE STRING,
CLASS_TYPE TYPE STRING,
SIGN TYPE STRING,
PARTNER_LINE TYPE STRING,
MATERIAL TYPE STRING,
UNIT_OF_MEASURE TYPE STRING,
QUANTITY TYPE STRING,
PRICE_PER_UNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GMHBDGTLINE_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_GMHBDGTLINE_STR-CLIENT sy-vline 
WA_GMHBDGTLINE_STR-OWNER_USER sy-vline 
WA_GMHBDGTLINE_STR-BDGT_DOC_NBR sy-vline 
WA_GMHBDGTLINE_STR-LINE sy-vline 
WA_GMHBDGTLINE_STR-GRANT_NBR sy-vline 
WA_GMHBDGTLINE_STR-BDGT_VLDTY_NBR sy-vline 
WA_GMHBDGTLINE_STR-SPONSORED_PROG sy-vline 
WA_GMHBDGTLINE_STR-SPONSORED_CLASS sy-vline 
WA_GMHBDGTLINE_STR-FIN_OBJECT_TYPE sy-vline 
WA_GMHBDGTLINE_STR-FINANCING_OBJECT sy-vline 
WA_GMHBDGTLINE_STR-FUND sy-vline 
WA_GMHBDGTLINE_STR-AMOUNT sy-vline 
WA_GMHBDGTLINE_STR-PERC_IDC sy-vline 
WA_GMHBDGTLINE_STR-AMOUNT_IDC sy-vline 
WA_GMHBDGTLINE_STR-TOTAL_AWARD sy-vline 
WA_GMHBDGTLINE_STR-PERC_CSH sy-vline 
WA_GMHBDGTLINE_STR-AMOUNT_CSH sy-vline 
WA_GMHBDGTLINE_STR-TOTAL_AMOUNT sy-vline 
WA_GMHBDGTLINE_STR-TEXT sy-vline 
WA_GMHBDGTLINE_STR-PROCESS sy-vline 
WA_GMHBDGTLINE_STR-VALUETYPE sy-vline 
WA_GMHBDGTLINE_STR-POSTING_DATE sy-vline 
WA_GMHBDGTLINE_STR-GRANTEE_FY sy-vline 
WA_GMHBDGTLINE_STR-CLASS_TYPE sy-vline 
WA_GMHBDGTLINE_STR-SIGN sy-vline 
WA_GMHBDGTLINE_STR-PARTNER_LINE sy-vline 
WA_GMHBDGTLINE_STR-MATERIAL sy-vline 
WA_GMHBDGTLINE_STR-UNIT_OF_MEASURE sy-vline 
WA_GMHBDGTLINE_STR-QUANTITY sy-vline 
WA_GMHBDGTLINE_STR-PRICE_PER_UNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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