ABAP Select data from SAP table /GBT/S_BAT_HDR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /GBT/S_BAT_HDR 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 /GBT/S_BAT_HDR. 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 /GBT/S_BAT_HDR 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_/GBT/S_BAT_HDR TYPE STANDARD TABLE OF /GBT/S_BAT_HDR,
      WA_/GBT/S_BAT_HDR TYPE /GBT/S_BAT_HDR,
      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: </GBT/S_BAT_HDR> TYPE /GBT/S_BAT_HDR.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /GBT/S_BAT_HDR
  INTO TABLE IT_/GBT/S_BAT_HDR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /GBT/S_BAT_HDR
*  INTO TABLE @DATA(IT_/GBT/S_BAT_HDR2).
*--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_/GBT/S_BAT_HDR INDEX 1 INTO DATA(WA_/GBT/S_BAT_HDR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/GBT/S_BAT_HDR ASSIGNING </GBT/S_BAT_HDR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</GBT/S_BAT_HDR>-MATNR = 1.
</GBT/S_BAT_HDR>-BATNR = 1.
</GBT/S_BAT_HDR>-PLANT = 1.
</GBT/S_BAT_HDR>-LOGSYS = 1.
</GBT/S_BAT_HDR>-OBJ_GUID = 1.

ENDLOOP.

LOOP AT IT_/GBT/S_BAT_HDR INTO WA_/GBT/S_BAT_HDR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/GBT/S_BAT_HDR-INSERTED_AT, sy-vline,
  WA_/GBT/S_BAT_HDR-MODIFIED_AT, sy-vline,
  WA_/GBT/S_BAT_HDR-RESTRICT_STATUS, sy-vline,
  WA_/GBT/S_BAT_HDR-RESTR_STATUS_AT, sy-vline,
  WA_/GBT/S_BAT_HDR-AVAILABLE_DATE, sy-vline,
  WA_/GBT/S_BAT_HDR-EXPIRY_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/GBT/S_BAT_HDR 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_/GBT/S_BAT_HDR 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_/GBT/S_BAT_HDR INTO WA_/GBT/S_BAT_HDR.


*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 GBTM1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_GBTM1_OUTPUT'
  EXPORTING
    input =                      WA_/GBT/S_BAT_HDR-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/GBT/S_BAT_HDR-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/GBT/S_BAT_HDR-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/GBT/S_BAT_HDR-LOGSYS.
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_/GBT/S_BAT_HDR_STR, 
MATNR TYPE STRING,
BATNR TYPE STRING,
PLANT TYPE STRING,
LOGSYS TYPE STRING,
OBJ_GUID TYPE STRING,
INSERTED_AT TYPE STRING,
MODIFIED_AT TYPE STRING,
RESTRICT_STATUS TYPE STRING,
RESTR_STATUS_AT TYPE STRING,
AVAILABLE_DATE TYPE STRING,
EXPIRY_DATE TYPE STRING,
LASTGR_DATE TYPE STRING,
COUNTRY_ORIG TYPE STRING,
REGION_ORIG TYPE STRING,
NEXTINSPEC_DATE TYPE STRING,
PROD_DATE TYPE STRING,
VAL_TYPE TYPE STRING,
DEL_FLAG TYPE STRING,
HAS_VEN_BATNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/GBT/S_BAT_HDR_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_/GBT/S_BAT_HDR_STR-MATNR sy-vline 
WA_/GBT/S_BAT_HDR_STR-BATNR sy-vline 
WA_/GBT/S_BAT_HDR_STR-PLANT sy-vline 
WA_/GBT/S_BAT_HDR_STR-LOGSYS sy-vline 
WA_/GBT/S_BAT_HDR_STR-OBJ_GUID sy-vline 
WA_/GBT/S_BAT_HDR_STR-INSERTED_AT sy-vline 
WA_/GBT/S_BAT_HDR_STR-MODIFIED_AT sy-vline 
WA_/GBT/S_BAT_HDR_STR-RESTRICT_STATUS sy-vline 
WA_/GBT/S_BAT_HDR_STR-RESTR_STATUS_AT sy-vline 
WA_/GBT/S_BAT_HDR_STR-AVAILABLE_DATE sy-vline 
WA_/GBT/S_BAT_HDR_STR-EXPIRY_DATE sy-vline 
WA_/GBT/S_BAT_HDR_STR-LASTGR_DATE sy-vline 
WA_/GBT/S_BAT_HDR_STR-COUNTRY_ORIG sy-vline 
WA_/GBT/S_BAT_HDR_STR-REGION_ORIG sy-vline 
WA_/GBT/S_BAT_HDR_STR-NEXTINSPEC_DATE sy-vline 
WA_/GBT/S_BAT_HDR_STR-PROD_DATE sy-vline 
WA_/GBT/S_BAT_HDR_STR-VAL_TYPE sy-vline 
WA_/GBT/S_BAT_HDR_STR-DEL_FLAG sy-vline 
WA_/GBT/S_BAT_HDR_STR-HAS_VEN_BATNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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