ABAP Select data from SAP table DB2_VIEW_GBP_DET into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DB2_VIEW_GBP_DET 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 DB2_VIEW_GBP_DET. 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 DB2_VIEW_GBP_DET 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_DB2_VIEW_GBP_DET TYPE STANDARD TABLE OF DB2_VIEW_GBP_DET,
      WA_DB2_VIEW_GBP_DET TYPE DB2_VIEW_GBP_DET,
      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: <DB2_VIEW_GBP_DET> TYPE DB2_VIEW_GBP_DET.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DB2_VIEW_GBP_DET.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DB2_VIEW_GBP_DET
  INTO TABLE IT_DB2_VIEW_GBP_DET.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DB2_VIEW_GBP_DET
*  INTO TABLE @DATA(IT_DB2_VIEW_GBP_DET2).
*--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_DB2_VIEW_GBP_DET INDEX 1 INTO DATA(WA_DB2_VIEW_GBP_DET2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DB2_VIEW_GBP_DET ASSIGNING <DB2_VIEW_GBP_DET>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DB2_VIEW_GBP_DET>-QBGL = 1.
<DB2_VIEW_GBP_DET>-QBGLGN = 1.
<DB2_VIEW_GBP_DET>-QBGLXD = 1.
<DB2_VIEW_GBP_DET>-QBGLXR = 1.
<DB2_VIEW_GBP_DET>-QBGLMD = 1.

ENDLOOP.

LOOP AT IT_DB2_VIEW_GBP_DET INTO WA_DB2_VIEW_GBP_DET.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DB2_VIEW_GBP_DET-QBGLMR, sy-vline,
  WA_DB2_VIEW_GBP_DET-QBGLSW, sy-vline,
  WA_DB2_VIEW_GBP_DET-QBGLWC, sy-vline,
  WA_DB2_VIEW_GBP_DET-QBGLCT, sy-vline,
  WA_DB2_VIEW_GBP_DET-QBGLGT, sy-vline,
  WA_DB2_VIEW_GBP_DET-QBGLEX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DB2_VIEW_GBP_DET 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_DB2_VIEW_GBP_DET 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_DB2_VIEW_GBP_DET INTO WA_DB2_VIEW_GBP_DET.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_DB2_VIEW_GBP_DET_STR, 
QBGL TYPE STRING,
QBGLGN TYPE STRING,
QBGLXD TYPE STRING,
QBGLXR TYPE STRING,
QBGLMD TYPE STRING,
QBGLMR TYPE STRING,
QBGLSW TYPE STRING,
QBGLWC TYPE STRING,
QBGLCT TYPE STRING,
QBGLGT TYPE STRING,
QBGLEX TYPE STRING,
QBGLAW TYPE STRING,
QBGLAC TYPE STRING,
QBGLRC TYPE STRING,
QBGLWF TYPE STRING,
QBGLOS TYPE STRING,
QBGLCK TYPE STRING,
QBGLUN TYPE STRING,
QBGLCC TYPE STRING,
QBGLCS TYPE STRING,
QBGLDN TYPE STRING,
QBGLRD TYPE STRING,
QBGLRG TYPE STRING,
QBGLDG TYPE STRING,
QBGLAX TYPE STRING,
QBGLAY TYPE STRING,
QBGL2F TYPE STRING,
QBGL2D TYPE STRING,
QBGL2R TYPE STRING,
QBGL2N TYPE STRING,
QBGLHS TYPE STRING,
QBGL2H TYPE STRING,
QBGLP1 TYPE STRING,
QBGLP2 TYPE STRING,
QBGLP3 TYPE STRING,
QBGLU1 TYPE STRING,
QBGLS1 TYPE STRING,
QBGLS2 TYPE STRING,
QBGLS3 TYPE STRING,
QBGLN1 TYPE STRING,
QBGLN2 TYPE STRING,
QBGLN3 TYPE STRING,
QBGLWA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DB2_VIEW_GBP_DET_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_DB2_VIEW_GBP_DET_STR-QBGL sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLGN sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLXD sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLXR sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLMD sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLMR sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLSW sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLWC sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLCT sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLGT sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLEX sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLAW sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLAC sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLRC sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLWF sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLOS sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLCK sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLUN sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLCC sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLCS sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLDN sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLRD sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLRG sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLDG sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLAX sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLAY sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGL2F sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGL2D sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGL2R sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGL2N sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLHS sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGL2H sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLP1 sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLP2 sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLP3 sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLU1 sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLS1 sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLS2 sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLS3 sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLN1 sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLN2 sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLN3 sy-vline 
WA_DB2_VIEW_GBP_DET_STR-QBGLWA sy-vline      INTO ld_text SEPARATED BY SPACE.

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