ABAP Select data from SAP table GB911I into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GB911I 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 GB911I. 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 GB911I 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_GB911I TYPE STANDARD TABLE OF GB911I,
      WA_GB911I TYPE GB911I,
      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: <GB911I> TYPE GB911I.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_GB911I.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM GB911I
  INTO TABLE IT_GB911I.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GB911I
*  INTO TABLE @DATA(IT_GB911I2).
*--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_GB911I INDEX 1 INTO DATA(WA_GB911I2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_GB911I ASSIGNING <GB911I>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GB911I>-OLDSEQNR = 1.
<GB911I>-VALSEQNR = 1.
<GB911I>-CONDEXP = 1.
<GB911I>-MSGTXT = 1.
<GB911I>-CHECKEXP = 1.

ENDLOOP.

LOOP AT IT_GB911I INTO WA_GB911I.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GB911I-VALMSG, sy-vline,
  WA_GB911I-VALSEVERE, sy-vline,
  WA_GB911I-DCONDMLIN, sy-vline,
  WA_GB911I-DCHCKMLIN, sy-vline,
  WA_GB911I-VALSPTEXT, sy-vline,
  WA_GB911I-BMARK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GB911I 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_GB911I 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_GB911I INTO WA_GB911I.


*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_GB911I_STR, 
OLDSEQNR TYPE STRING,
VALSEQNR TYPE STRING,
CONDEXP TYPE STRING,
MSGTXT TYPE STRING,
CHECKEXP TYPE STRING,
VALMSG TYPE STRING,
VALSEVERE TYPE STRING,
DCONDMLIN TYPE STRING,
DCHCKMLIN TYPE STRING,
VALSPTEXT TYPE STRING,
BMARK TYPE STRING,
BSHOW TYPE STRING,
MULTILINE TYPE STRING,
WORKFLOW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GB911I_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_GB911I_STR-OLDSEQNR sy-vline 
WA_GB911I_STR-VALSEQNR sy-vline 
WA_GB911I_STR-CONDEXP sy-vline 
WA_GB911I_STR-MSGTXT sy-vline 
WA_GB911I_STR-CHECKEXP sy-vline 
WA_GB911I_STR-VALMSG sy-vline 
WA_GB911I_STR-VALSEVERE sy-vline 
WA_GB911I_STR-DCONDMLIN sy-vline 
WA_GB911I_STR-DCHCKMLIN sy-vline 
WA_GB911I_STR-VALSPTEXT sy-vline 
WA_GB911I_STR-BMARK sy-vline 
WA_GB911I_STR-BSHOW sy-vline 
WA_GB911I_STR-MULTILINE sy-vline 
WA_GB911I_STR-WORKFLOW sy-vline      INTO ld_text SEPARATED BY SPACE.

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