ABAP Select data from SAP table GMIA_LIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GMIA_LIST
*  INTO TABLE @DATA(IT_GMIA_LIST2).
*--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_GMIA_LIST INDEX 1 INTO DATA(WA_GMIA_LIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GMIA_LIST>-SELECTION_SIGN = 1.
<GMIA_LIST>-GL_SIRID = 1.
<GMIA_LIST>-RTCUR = 1.
<GMIA_LIST>-RUNIT = 1.
<GMIA_LIST>-RBUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GMIA_LIST-RGRANT_NBR, sy-vline,
  WA_GMIA_LIST-GRANT_SHORT_DESCRIPTION, sy-vline,
  WA_GMIA_LIST-RSPONSORED_PROG, sy-vline,
  WA_GMIA_LIST-SPONSORED_PROG_TEXT, sy-vline,
  WA_GMIA_LIST-RSPONSORED_CLASS, sy-vline,
  WA_GMIA_LIST-SPONSORED_CLASS_TEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GMIA_LIST 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_GMIA_LIST 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_GMIA_LIST INTO WA_GMIA_LIST.


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

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

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

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

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

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

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

*Conversion exit ABPSN, internal->external for field WBS_ELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_GMIA_LIST-WBS_ELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMIA_LIST-WBS_ELEMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field CMMT_ITEM
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_GMIA_LIST-CMMT_ITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMIA_LIST-CMMT_ITEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GMIA_LIST-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMIA_LIST-BELNR.
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_GMIA_LIST_STR, 
SELECTION_SIGN TYPE STRING,
GL_SIRID TYPE STRING,
RTCUR TYPE STRING,
RUNIT TYPE STRING,
RBUKRS TYPE STRING,
RGRANT_NBR TYPE STRING,
GRANT_SHORT_DESCRIPTION TYPE STRING,
RSPONSORED_PROG TYPE STRING,
SPONSORED_PROG_TEXT TYPE STRING,
RSPONSORED_CLASS TYPE STRING,
SPONSORED_CLASS_TEXT TYPE STRING,
RFUND TYPE STRING,
FUND_TEXT TYPE STRING,
RVALUETYPE_9 TYPE STRING,
VALUETYPE_TEXT TYPE STRING,
TSL TYPE STRING,
HSL TYPE STRING,
MSL TYPE STRING,
SGTXT TYPE STRING,
BUDAT TYPE STRING,
REFDOCNR TYPE STRING,
REFRYEAR TYPE STRING,
REFDOCLN TYPE STRING,
USNAM TYPE STRING,
GL_ACCOUNT TYPE STRING,
COSTCENTER TYPE STRING,
ORDERID TYPE STRING,
WBS_ELEMENT TYPE STRING,
FUNDS_CTR TYPE STRING,
CMMT_ITEM TYPE STRING,
FAREA TYPE STRING,
MEASURE TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
LOEKZ TYPE STRING,
BILLING_STATUS TYPE STRING,
BILLING_BLOCK_9 TYPE STRING,
BLOCK_STATUS TYPE STRING,
BILLING_STATUS_ICON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GMIA_LIST_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_GMIA_LIST_STR-SELECTION_SIGN sy-vline 
WA_GMIA_LIST_STR-GL_SIRID sy-vline 
WA_GMIA_LIST_STR-RTCUR sy-vline 
WA_GMIA_LIST_STR-RUNIT sy-vline 
WA_GMIA_LIST_STR-RBUKRS sy-vline 
WA_GMIA_LIST_STR-RGRANT_NBR sy-vline 
WA_GMIA_LIST_STR-GRANT_SHORT_DESCRIPTION sy-vline 
WA_GMIA_LIST_STR-RSPONSORED_PROG sy-vline 
WA_GMIA_LIST_STR-SPONSORED_PROG_TEXT sy-vline 
WA_GMIA_LIST_STR-RSPONSORED_CLASS sy-vline 
WA_GMIA_LIST_STR-SPONSORED_CLASS_TEXT sy-vline 
WA_GMIA_LIST_STR-RFUND sy-vline 
WA_GMIA_LIST_STR-FUND_TEXT sy-vline 
WA_GMIA_LIST_STR-RVALUETYPE_9 sy-vline 
WA_GMIA_LIST_STR-VALUETYPE_TEXT sy-vline 
WA_GMIA_LIST_STR-TSL sy-vline 
WA_GMIA_LIST_STR-HSL sy-vline 
WA_GMIA_LIST_STR-MSL sy-vline 
WA_GMIA_LIST_STR-SGTXT sy-vline 
WA_GMIA_LIST_STR-BUDAT sy-vline 
WA_GMIA_LIST_STR-REFDOCNR sy-vline 
WA_GMIA_LIST_STR-REFRYEAR sy-vline 
WA_GMIA_LIST_STR-REFDOCLN sy-vline 
WA_GMIA_LIST_STR-USNAM sy-vline 
WA_GMIA_LIST_STR-GL_ACCOUNT sy-vline 
WA_GMIA_LIST_STR-COSTCENTER sy-vline 
WA_GMIA_LIST_STR-ORDERID sy-vline 
WA_GMIA_LIST_STR-WBS_ELEMENT sy-vline 
WA_GMIA_LIST_STR-FUNDS_CTR sy-vline 
WA_GMIA_LIST_STR-CMMT_ITEM sy-vline 
WA_GMIA_LIST_STR-FAREA sy-vline 
WA_GMIA_LIST_STR-MEASURE sy-vline 
WA_GMIA_LIST_STR-BELNR sy-vline 
WA_GMIA_LIST_STR-BUZEI sy-vline 
WA_GMIA_LIST_STR-LOEKZ sy-vline 
WA_GMIA_LIST_STR-BILLING_STATUS sy-vline 
WA_GMIA_LIST_STR-BILLING_BLOCK_9 sy-vline 
WA_GMIA_LIST_STR-BLOCK_STATUS sy-vline 
WA_GMIA_LIST_STR-BILLING_STATUS_ICON sy-vline      INTO ld_text SEPARATED BY SPACE.

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