ABAP Select data from SAP table GMDERIVE into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GMDERIVE 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 GMDERIVE. 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 GMDERIVE 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_GMDERIVE TYPE STANDARD TABLE OF GMDERIVE,
      WA_GMDERIVE TYPE GMDERIVE,
      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: <GMDERIVE> TYPE GMDERIVE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GMDERIVE
*  INTO TABLE @DATA(IT_GMDERIVE2).
*--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_GMDERIVE INDEX 1 INTO DATA(WA_GMDERIVE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GMDERIVE>-ADATU = 1.
<GMDERIVE>-DOC_TYPE = 1.
<GMDERIVE>-COMP_CODE = 1.
<GMDERIVE>-BUS_AREA = 1.
<GMDERIVE>-CO_AREA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GMDERIVE-FM_AREA, sy-vline,
  WA_GMDERIVE-DISTR_CHAN, sy-vline,
  WA_GMDERIVE-SALESORG, sy-vline,
  WA_GMDERIVE-DIVISION, sy-vline,
  WA_GMDERIVE-PLANT, sy-vline,
  WA_GMDERIVE-ASSET_NO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GMDERIVE 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_GMDERIVE 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_GMDERIVE INTO WA_GMDERIVE.


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

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

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

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

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

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

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

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

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

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

*Conversion exit SWENR, internal->external for field BUSINESS_ENTITY
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_GMDERIVE-BUSINESS_ENTITY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMDERIVE-BUSINESS_ENTITY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGRNR, internal->external for field PROPERTY
CALL FUNCTION 'CONVERSION_EXIT_SGRNR_OUTPUT'
  EXPORTING
    input =                      WA_GMDERIVE-PROPERTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMDERIVE-PROPERTY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGENR, internal->external for field BUILDING
CALL FUNCTION 'CONVERSION_EXIT_SGENR_OUTPUT'
  EXPORTING
    input =                      WA_GMDERIVE-BUILDING
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMDERIVE-BUILDING.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SMENR, internal->external for field RENTAL_UNIT
CALL FUNCTION 'CONVERSION_EXIT_SMENR_OUTPUT'
  EXPORTING
    input =                      WA_GMDERIVE-RENTAL_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMDERIVE-RENTAL_UNIT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field LOGSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_GMDERIVE-LOGSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GMDERIVE-LOGSYSTEM.
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_GMDERIVE_STR, 
ADATU TYPE STRING,
DOC_TYPE TYPE STRING,
COMP_CODE TYPE STRING,
BUS_AREA TYPE STRING,
CO_AREA TYPE STRING,
FM_AREA TYPE STRING,
DISTR_CHAN TYPE STRING,
SALESORG TYPE STRING,
DIVISION TYPE STRING,
PLANT TYPE STRING,
ASSET_NO TYPE STRING,
SUB_NUMBER TYPE STRING,
GL_ACCOUNT TYPE STRING,
COST_ELEM TYPE STRING,
COSTCENTER TYPE STRING,
PROFIT_CTR TYPE STRING,
ORDERID TYPE STRING,
NETWORK TYPE STRING,
ROUTING_NO TYPE STRING,
COUNTER TYPE STRING,
SD_DOC TYPE STRING,
ITM_NUMBER TYPE STRING,
WBS_ELEMENT TYPE STRING,
CMMT_ITEM TYPE STRING,
FUNDS_CTR TYPE STRING,
FUND TYPE STRING,
FUNC_AREA TYPE STRING,
MEASURE TYPE STRING,
BUSINESS_ENTITY TYPE STRING,
PROPERTY TYPE STRING,
BUILDING TYPE STRING,
RENTAL_UNIT TYPE STRING,
RENTAL_AGREEMENT TYPE STRING,
SETTLEMENT_UNIT TYPE STRING,
TRANS TYPE STRING,
CS_TRANS_T TYPE STRING,
MATERIAL TYPE STRING,
GRANT_NBR TYPE STRING,
GRANT_TYPE TYPE STRING,
PARTNER TYPE STRING,
SPONSORED_PROG TYPE STRING,
SPONSORED_CLASS TYPE STRING,
REVERSEDOC TYPE STRING,
USERTEMP1 TYPE STRING,
FM_SPLIT TYPE STRING,
STATKEYFIG TYPE STRING,
RES_DOC TYPE STRING,
RES_ITEM TYPE STRING,
PO_NUMBER TYPE STRING,
PO_LINE_ITEM TYPE STRING,
PO_SEQ_AA TYPE STRING,
PO_NUMBER_SES TYPE STRING,
PO_LINE_ITEM_SES TYPE STRING,
PO_SEQ_AA_SES TYPE STRING,
PO_PRED_ORG TYPE STRING,
LOGSYSTEM TYPE STRING,
USER_NAME TYPE STRING,
ACCT_TYPE TYPE STRING,
ACCT_KEY TYPE STRING,
REF_TRANS TYPE STRING,
PROCESS_INFO TYPE STRING,
PROCESS_DETAIL TYPE STRING,
USERTEMP2 TYPE STRING,
USERTEMP3 TYPE STRING,
USERTEMP4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GMDERIVE_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_GMDERIVE_STR-ADATU sy-vline 
WA_GMDERIVE_STR-DOC_TYPE sy-vline 
WA_GMDERIVE_STR-COMP_CODE sy-vline 
WA_GMDERIVE_STR-BUS_AREA sy-vline 
WA_GMDERIVE_STR-CO_AREA sy-vline 
WA_GMDERIVE_STR-FM_AREA sy-vline 
WA_GMDERIVE_STR-DISTR_CHAN sy-vline 
WA_GMDERIVE_STR-SALESORG sy-vline 
WA_GMDERIVE_STR-DIVISION sy-vline 
WA_GMDERIVE_STR-PLANT sy-vline 
WA_GMDERIVE_STR-ASSET_NO sy-vline 
WA_GMDERIVE_STR-SUB_NUMBER sy-vline 
WA_GMDERIVE_STR-GL_ACCOUNT sy-vline 
WA_GMDERIVE_STR-COST_ELEM sy-vline 
WA_GMDERIVE_STR-COSTCENTER sy-vline 
WA_GMDERIVE_STR-PROFIT_CTR sy-vline 
WA_GMDERIVE_STR-ORDERID sy-vline 
WA_GMDERIVE_STR-NETWORK sy-vline 
WA_GMDERIVE_STR-ROUTING_NO sy-vline 
WA_GMDERIVE_STR-COUNTER sy-vline 
WA_GMDERIVE_STR-SD_DOC sy-vline 
WA_GMDERIVE_STR-ITM_NUMBER sy-vline 
WA_GMDERIVE_STR-WBS_ELEMENT sy-vline 
WA_GMDERIVE_STR-CMMT_ITEM sy-vline 
WA_GMDERIVE_STR-FUNDS_CTR sy-vline 
WA_GMDERIVE_STR-FUND sy-vline 
WA_GMDERIVE_STR-FUNC_AREA sy-vline 
WA_GMDERIVE_STR-MEASURE sy-vline 
WA_GMDERIVE_STR-BUSINESS_ENTITY sy-vline 
WA_GMDERIVE_STR-PROPERTY sy-vline 
WA_GMDERIVE_STR-BUILDING sy-vline 
WA_GMDERIVE_STR-RENTAL_UNIT sy-vline 
WA_GMDERIVE_STR-RENTAL_AGREEMENT sy-vline 
WA_GMDERIVE_STR-SETTLEMENT_UNIT sy-vline 
WA_GMDERIVE_STR-TRANS sy-vline 
WA_GMDERIVE_STR-CS_TRANS_T sy-vline 
WA_GMDERIVE_STR-MATERIAL sy-vline 
WA_GMDERIVE_STR-GRANT_NBR sy-vline 
WA_GMDERIVE_STR-GRANT_TYPE sy-vline 
WA_GMDERIVE_STR-PARTNER sy-vline 
WA_GMDERIVE_STR-SPONSORED_PROG sy-vline 
WA_GMDERIVE_STR-SPONSORED_CLASS sy-vline 
WA_GMDERIVE_STR-REVERSEDOC sy-vline 
WA_GMDERIVE_STR-USERTEMP1 sy-vline 
WA_GMDERIVE_STR-FM_SPLIT sy-vline 
WA_GMDERIVE_STR-STATKEYFIG sy-vline 
WA_GMDERIVE_STR-RES_DOC sy-vline 
WA_GMDERIVE_STR-RES_ITEM sy-vline 
WA_GMDERIVE_STR-PO_NUMBER sy-vline 
WA_GMDERIVE_STR-PO_LINE_ITEM sy-vline 
WA_GMDERIVE_STR-PO_SEQ_AA sy-vline 
WA_GMDERIVE_STR-PO_NUMBER_SES sy-vline 
WA_GMDERIVE_STR-PO_LINE_ITEM_SES sy-vline 
WA_GMDERIVE_STR-PO_SEQ_AA_SES sy-vline 
WA_GMDERIVE_STR-PO_PRED_ORG sy-vline 
WA_GMDERIVE_STR-LOGSYSTEM sy-vline 
WA_GMDERIVE_STR-USER_NAME sy-vline 
WA_GMDERIVE_STR-ACCT_TYPE sy-vline 
WA_GMDERIVE_STR-ACCT_KEY sy-vline 
WA_GMDERIVE_STR-REF_TRANS sy-vline 
WA_GMDERIVE_STR-PROCESS_INFO sy-vline 
WA_GMDERIVE_STR-PROCESS_DETAIL sy-vline 
WA_GMDERIVE_STR-USERTEMP2 sy-vline 
WA_GMDERIVE_STR-USERTEMP3 sy-vline 
WA_GMDERIVE_STR-USERTEMP4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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