ABAP Select data from SAP table GMIW into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GMIW
*  INTO TABLE @DATA(IT_GMIW2).
*--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_GMIW INDEX 1 INTO DATA(WA_GMIW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GMIW>-RVERS = 1.
<GMIW>-RYEAR = 1.
<GMIW>-RTCUR = 1.
<GMIW>-POPER = 1.
<GMIW>-DOCCT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GMIW-DOCNR, sy-vline,
  WA_GMIW-DOCLN, sy-vline,
  WA_GMIW-RBUKRS, sy-vline,
  WA_GMIW-RGRANT_NBR, sy-vline,
  WA_GMIW-RSPONSORED_PROG, sy-vline,
  WA_GMIW-RSPONSORED_CLASS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GMIW 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_GMIW 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_GMIW INTO WA_GMIW.


*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_GMIW-RVERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMIW-RVERS.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field RGRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GMIW-RGRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMIW-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_GMIW-RGRANTEE_FY_9
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMIW-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_GMIW-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMIW-LOGSYS.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_GMIW-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMIW-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ABPSP, internal->external for field WBS_SHORT_9
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_GMIW-WBS_SHORT_9
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMIW-WBS_SHORT_9.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit PERI7, internal->external for field FISCPER
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_GMIW-FISCPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMIW-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_GMIW_STR, 
RVERS TYPE STRING,
RYEAR TYPE STRING,
RTCUR TYPE STRING,
POPER TYPE STRING,
DOCCT TYPE STRING,
DOCNR TYPE STRING,
DOCLN 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,
SGTXT TYPE STRING,
DOCTY TYPE STRING,
ACTIV TYPE STRING,
BUDAT TYPE STRING,
WSDAT TYPE STRING,
REFDOCNR TYPE STRING,
REFRYEAR TYPE STRING,
REFDOCLN TYPE STRING,
REFDOCCT TYPE STRING,
REFACTIV TYPE STRING,
REFDOC_DETAIL TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
USNAM TYPE STRING,
AWTYP TYPE STRING,
AWORG TYPE STRING,
GL_ACCOUNT TYPE STRING,
CO_AREA TYPE STRING,
COSTCENTER TYPE STRING,
ORDERID TYPE STRING,
WBS_ELEMENT TYPE STRING,
PROFIT_CTR TYPE STRING,
ASSETMAINO TYPE STRING,
ASSETSUBNO TYPE STRING,
MATERIAL TYPE STRING,
FM_AREA TYPE STRING,
BUS_AREA TYPE STRING,
FUNDS_CTR TYPE STRING,
CMMT_ITEM TYPE STRING,
FAREA TYPE STRING,
MEASURE TYPE STRING,
NETWORK TYPE STRING,
ROUTING_NO TYPE STRING,
COUNTER_9 TYPE STRING,
OBJ_ORG_P TYPE STRING,
OBJ_TYP_P TYPE STRING,
OBJ_KEY_P TYPE STRING,
OBJ_POS_P TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
LINETYPE TYPE STRING,
XSPLITMOD TYPE STRING,
RWCUR TYPE STRING,
BILLING_STATUS TYPE STRING,
ERLKZ TYPE STRING,
LOEKZ TYPE STRING,
BILLING_BLOCK_9 TYPE STRING,
DOC_ORIGIN_9 TYPE STRING,
WBS_SHORT_9 TYPE STRING,
TIMESTAMP 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,
TURNOVER TYPE STRING,
QUANTITY TYPE STRING,
BDGT_PHASE TYPE STRING,
BDGT_STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GMIW_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_GMIW_STR-RVERS sy-vline 
WA_GMIW_STR-RYEAR sy-vline 
WA_GMIW_STR-RTCUR sy-vline 
WA_GMIW_STR-POPER sy-vline 
WA_GMIW_STR-DOCCT sy-vline 
WA_GMIW_STR-DOCNR sy-vline 
WA_GMIW_STR-DOCLN sy-vline 
WA_GMIW_STR-RBUKRS sy-vline 
WA_GMIW_STR-RGRANT_NBR sy-vline 
WA_GMIW_STR-RSPONSORED_PROG sy-vline 
WA_GMIW_STR-RSPONSORED_CLASS sy-vline 
WA_GMIW_STR-RBDGT_VLDTY_NBR sy-vline 
WA_GMIW_STR-RFUND sy-vline 
WA_GMIW_STR-RVALUETYPE_9 sy-vline 
WA_GMIW_STR-RTRANS sy-vline 
WA_GMIW_STR-RSTATS_IND sy-vline 
WA_GMIW_STR-RGRANTEE_FY_9 sy-vline 
WA_GMIW_STR-LOGSYS sy-vline 
WA_GMIW_STR-BDGT_STATE sy-vline 
WA_GMIW_STR-SGTXT sy-vline 
WA_GMIW_STR-DOCTY sy-vline 
WA_GMIW_STR-ACTIV sy-vline 
WA_GMIW_STR-BUDAT sy-vline 
WA_GMIW_STR-WSDAT sy-vline 
WA_GMIW_STR-REFDOCNR sy-vline 
WA_GMIW_STR-REFRYEAR sy-vline 
WA_GMIW_STR-REFDOCLN sy-vline 
WA_GMIW_STR-REFDOCCT sy-vline 
WA_GMIW_STR-REFACTIV sy-vline 
WA_GMIW_STR-REFDOC_DETAIL sy-vline 
WA_GMIW_STR-CPUDT sy-vline 
WA_GMIW_STR-CPUTM sy-vline 
WA_GMIW_STR-USNAM sy-vline 
WA_GMIW_STR-AWTYP sy-vline 
WA_GMIW_STR-AWORG sy-vline 
WA_GMIW_STR-GL_ACCOUNT sy-vline 
WA_GMIW_STR-CO_AREA sy-vline 
WA_GMIW_STR-COSTCENTER sy-vline 
WA_GMIW_STR-ORDERID sy-vline 
WA_GMIW_STR-WBS_ELEMENT sy-vline 
WA_GMIW_STR-PROFIT_CTR sy-vline 
WA_GMIW_STR-ASSETMAINO sy-vline 
WA_GMIW_STR-ASSETSUBNO sy-vline 
WA_GMIW_STR-MATERIAL sy-vline 
WA_GMIW_STR-FM_AREA sy-vline 
WA_GMIW_STR-BUS_AREA sy-vline 
WA_GMIW_STR-FUNDS_CTR sy-vline 
WA_GMIW_STR-CMMT_ITEM sy-vline 
WA_GMIW_STR-FAREA sy-vline 
WA_GMIW_STR-MEASURE sy-vline 
WA_GMIW_STR-NETWORK sy-vline 
WA_GMIW_STR-ROUTING_NO sy-vline 
WA_GMIW_STR-COUNTER_9 sy-vline 
WA_GMIW_STR-OBJ_ORG_P sy-vline 
WA_GMIW_STR-OBJ_TYP_P sy-vline 
WA_GMIW_STR-OBJ_KEY_P sy-vline 
WA_GMIW_STR-OBJ_POS_P sy-vline 
WA_GMIW_STR-BELNR sy-vline 
WA_GMIW_STR-BUZEI sy-vline 
WA_GMIW_STR-LINETYPE sy-vline 
WA_GMIW_STR-XSPLITMOD sy-vline 
WA_GMIW_STR-RWCUR sy-vline 
WA_GMIW_STR-BILLING_STATUS sy-vline 
WA_GMIW_STR-ERLKZ sy-vline 
WA_GMIW_STR-LOEKZ sy-vline 
WA_GMIW_STR-BILLING_BLOCK_9 sy-vline 
WA_GMIW_STR-DOC_ORIGIN_9 sy-vline 
WA_GMIW_STR-WBS_SHORT_9 sy-vline 
WA_GMIW_STR-TIMESTAMP sy-vline 
WA_GMIW_STR-QUANUNIT sy-vline 
WA_GMIW_STR-VALUETYPE sy-vline 
WA_GMIW_STR-CURTYPE sy-vline 
WA_GMIW_STR-FISCPER sy-vline 
WA_GMIW_STR-FISCVAR sy-vline 
WA_GMIW_STR-CHARTACCTS sy-vline 
WA_GMIW_STR-UPMOD sy-vline 
WA_GMIW_STR-VALUTYP sy-vline 
WA_GMIW_STR-CURRUNIT sy-vline 
WA_GMIW_STR-TURNOVER sy-vline 
WA_GMIW_STR-QUANTITY sy-vline 
WA_GMIW_STR-BDGT_PHASE sy-vline 
WA_GMIW_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.