ABAP Select data from SAP table GMIB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GMIB
*  INTO TABLE @DATA(IT_GMIB2).
*--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_GMIB INDEX 1 INTO DATA(WA_GMIB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GMIB>-RVERS = 1.
<GMIB>-RYEAR = 1.
<GMIB>-RTCUR = 1.
<GMIB>-RBUKRS = 1.
<GMIB>-RGRANT_NBR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GMIB-RSPONSORED_PROG, sy-vline,
  WA_GMIB-RSPONSORED_CLASS, sy-vline,
  WA_GMIB-RBDGT_VLDTY_NBR, sy-vline,
  WA_GMIB-RFUND, sy-vline,
  WA_GMIB-RVALUETYPE_9, sy-vline,
  WA_GMIB-RTRANS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GMIB 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_GMIB 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_GMIB INTO WA_GMIB.


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

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

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

*Conversion exit GJAHR, internal->external for field RGRANTEE_FY_9
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_GMIB-RGRANTEE_FY_9
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMIB-RGRANTEE_FY_9.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field QUANUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_GMIB-QUANUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMIB-QUANUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field FISCPER
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_GMIB-FISCPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMIB-FISCPER.
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_GMIB_STR, 
RVERS TYPE STRING,
RYEAR TYPE STRING,
RTCUR TYPE STRING,
RBUKRS TYPE STRING,
RGRANT_NBR TYPE STRING,
RSPONSORED_PROG TYPE STRING,
RSPONSORED_CLASS TYPE STRING,
RBDGT_VLDTY_NBR TYPE STRING,
RFUND TYPE STRING,
RVALUETYPE_9 TYPE STRING,
RTRANS TYPE STRING,
RSTATS_IND TYPE STRING,
RGRANTEE_FY_9 TYPE STRING,
LOGSYS TYPE STRING,
BDGT_STATE TYPE STRING,
QUANUNIT TYPE STRING,
VALUETYPE TYPE STRING,
CURTYPE TYPE STRING,
FISCPER TYPE STRING,
FISCVAR TYPE STRING,
CHARTACCTS TYPE STRING,
UPMOD TYPE STRING,
VALUTYP TYPE STRING,
CURRUNIT TYPE STRING,
BALANCE TYPE STRING,
TURNOVER TYPE STRING,
QUANTITY TYPE STRING,
FIKRS TYPE STRING,
BDGT_PHASE TYPE STRING,
BDGT_STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GMIB_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_GMIB_STR-RVERS sy-vline 
WA_GMIB_STR-RYEAR sy-vline 
WA_GMIB_STR-RTCUR sy-vline 
WA_GMIB_STR-RBUKRS sy-vline 
WA_GMIB_STR-RGRANT_NBR sy-vline 
WA_GMIB_STR-RSPONSORED_PROG sy-vline 
WA_GMIB_STR-RSPONSORED_CLASS sy-vline 
WA_GMIB_STR-RBDGT_VLDTY_NBR sy-vline 
WA_GMIB_STR-RFUND sy-vline 
WA_GMIB_STR-RVALUETYPE_9 sy-vline 
WA_GMIB_STR-RTRANS sy-vline 
WA_GMIB_STR-RSTATS_IND sy-vline 
WA_GMIB_STR-RGRANTEE_FY_9 sy-vline 
WA_GMIB_STR-LOGSYS sy-vline 
WA_GMIB_STR-BDGT_STATE sy-vline 
WA_GMIB_STR-QUANUNIT sy-vline 
WA_GMIB_STR-VALUETYPE sy-vline 
WA_GMIB_STR-CURTYPE sy-vline 
WA_GMIB_STR-FISCPER sy-vline 
WA_GMIB_STR-FISCVAR sy-vline 
WA_GMIB_STR-CHARTACCTS sy-vline 
WA_GMIB_STR-UPMOD sy-vline 
WA_GMIB_STR-VALUTYP sy-vline 
WA_GMIB_STR-CURRUNIT sy-vline 
WA_GMIB_STR-BALANCE sy-vline 
WA_GMIB_STR-TURNOVER sy-vline 
WA_GMIB_STR-QUANTITY sy-vline 
WA_GMIB_STR-FIKRS sy-vline 
WA_GMIB_STR-BDGT_PHASE sy-vline 
WA_GMIB_STR-BDGT_STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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