ABAP Select data from SAP table ISDCRDMEMREQITMC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISDCRDMEMREQITMC
*  INTO TABLE @DATA(IT_ISDCRDMEMREQITMC2).
*--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_ISDCRDMEMREQITMC INDEX 1 INTO DATA(WA_ISDCRDMEMREQITMC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISDCRDMEMREQITMC>-MANDT = 1.
<ISDCRDMEMREQITMC>-CREDITMEMOREQUEST = 1.
<ISDCRDMEMREQITMC>-CREDITMEMOREQUESTITEM = 1.
<ISDCRDMEMREQITMC>-CREDITMEMOREQUESTTYPE = 1.
<ISDCRDMEMREQITMC>-CREDITMEMOREQUESTITEMCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISDCRDMEMREQITMC-CREDITMEMOREQUESTITEMTYPE, sy-vline,
  WA_ISDCRDMEMREQITMC-CREATEDBYUSER, sy-vline,
  WA_ISDCRDMEMREQITMC-CREATIONDATE, sy-vline,
  WA_ISDCRDMEMREQITMC-CREATIONTIME, sy-vline,
  WA_ISDCRDMEMREQITMC-LASTCHANGEDATE, sy-vline,
  WA_ISDCRDMEMREQITMC-CREATIONDATEYEAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISDCRDMEMREQITMC 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_ISDCRDMEMREQITMC 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_ISDCRDMEMREQITMC INTO WA_ISDCRDMEMREQITMC.


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

*Conversion exit AUART, internal->external for field CREDITMEMOREQUESTTYPE
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_ISDCRDMEMREQITMC-CREDITMEMOREQUESTTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISDCRDMEMREQITMC-CREDITMEMOREQUESTTYPE.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ISDCRDMEMREQITMC-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISDCRDMEMREQITMC-BASEUNIT.
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_ISDCRDMEMREQITMC_STR, 
MANDT TYPE STRING,
CREDITMEMOREQUEST TYPE STRING,
CREDITMEMOREQUESTITEM TYPE STRING,
CREDITMEMOREQUESTTYPE TYPE STRING,
CREDITMEMOREQUESTITEMCATEGORY TYPE STRING,
CREDITMEMOREQUESTITEMTYPE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
LASTCHANGEDATE TYPE STRING,
CREATIONDATEYEAR TYPE STRING,
CREATIONDATEYEARQUARTER TYPE STRING,
CREATIONDATEYEARMONTH TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
ORGANIZATIONDIVISION TYPE STRING,
DIVISION TYPE STRING,
SALESOFFICE TYPE STRING,
SALESGROUP TYPE STRING,
SOLDTOPARTY TYPE STRING,
SDDOCUMENTREASON TYPE STRING,
CREDITMEMOREQUESTITEMTEXT TYPE STRING,
PURCHASEORDERBYCUSTOMER TYPE STRING,
CUSTOMERPURCHASEORDERDATE TYPE STRING,
CUSTOMERGROUP TYPE STRING,
SALESDOCUMENTRJCNREASON TYPE STRING,
MATERIAL TYPE STRING,
PRODUCT TYPE STRING,
MATERIALGROUP TYPE STRING,
PRODUCTGROUP TYPE STRING,
PLANT TYPE STRING,
ITEMGROSSWEIGHT TYPE STRING,
ITEMNETWEIGHT TYPE STRING,
ITEMWEIGHTUNIT TYPE STRING,
ITEMVOLUME TYPE STRING,
ITEMVOLUMEUNIT TYPE STRING,
TAXAMOUNT TYPE STRING,
COSTAMOUNT TYPE STRING,
SUBTOTAL1AMOUNT TYPE STRING,
SUBTOTAL2AMOUNT TYPE STRING,
SUBTOTAL3AMOUNT TYPE STRING,
SUBTOTAL4AMOUNT TYPE STRING,
SUBTOTAL5AMOUNT TYPE STRING,
SUBTOTAL6AMOUNT TYPE STRING,
BILLINGCOMPANYCODE TYPE STRING,
ITEMISBILLINGRELEVANT TYPE STRING,
ITEMBILLINGBLOCKREASON TYPE STRING,
CUSTOMERPAYMENTTERMS TYPE STRING,
PAYMENTMETHOD TYPE STRING,
BUSINESSAREA TYPE STRING,
SDPROCESSSTATUS TYPE STRING,
ORDERRELATEDBILLINGSTATUS TYPE STRING,
BILLINGBLOCKSTATUS TYPE STRING,
BUSINESSSOLUTIONORDER TYPE STRING,
BASEUNIT TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
NETAMOUNT TYPE STRING,
CREDITMEMOREQUESTNETAMOUNT TYPE STRING,
NETAMOUNTINDISPLAYCURRENCY TYPE STRING,
CREDITMEMOREQUESTNETAMTINDC TYPE STRING,
CREDITMEMOREQUESTQUANTITY TYPE STRING,
NUMBEROFCREDITMEMOREQUESTITEMS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISDCRDMEMREQITMC_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_ISDCRDMEMREQITMC_STR-MANDT sy-vline 
WA_ISDCRDMEMREQITMC_STR-CREDITMEMOREQUEST sy-vline 
WA_ISDCRDMEMREQITMC_STR-CREDITMEMOREQUESTITEM sy-vline 
WA_ISDCRDMEMREQITMC_STR-CREDITMEMOREQUESTTYPE sy-vline 
WA_ISDCRDMEMREQITMC_STR-CREDITMEMOREQUESTITEMCATEGORY sy-vline 
WA_ISDCRDMEMREQITMC_STR-CREDITMEMOREQUESTITEMTYPE sy-vline 
WA_ISDCRDMEMREQITMC_STR-CREATEDBYUSER sy-vline 
WA_ISDCRDMEMREQITMC_STR-CREATIONDATE sy-vline 
WA_ISDCRDMEMREQITMC_STR-CREATIONTIME sy-vline 
WA_ISDCRDMEMREQITMC_STR-LASTCHANGEDATE sy-vline 
WA_ISDCRDMEMREQITMC_STR-CREATIONDATEYEAR sy-vline 
WA_ISDCRDMEMREQITMC_STR-CREATIONDATEYEARQUARTER sy-vline 
WA_ISDCRDMEMREQITMC_STR-CREATIONDATEYEARMONTH sy-vline 
WA_ISDCRDMEMREQITMC_STR-SALESORGANIZATION sy-vline 
WA_ISDCRDMEMREQITMC_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_ISDCRDMEMREQITMC_STR-ORGANIZATIONDIVISION sy-vline 
WA_ISDCRDMEMREQITMC_STR-DIVISION sy-vline 
WA_ISDCRDMEMREQITMC_STR-SALESOFFICE sy-vline 
WA_ISDCRDMEMREQITMC_STR-SALESGROUP sy-vline 
WA_ISDCRDMEMREQITMC_STR-SOLDTOPARTY sy-vline 
WA_ISDCRDMEMREQITMC_STR-SDDOCUMENTREASON sy-vline 
WA_ISDCRDMEMREQITMC_STR-CREDITMEMOREQUESTITEMTEXT sy-vline 
WA_ISDCRDMEMREQITMC_STR-PURCHASEORDERBYCUSTOMER sy-vline 
WA_ISDCRDMEMREQITMC_STR-CUSTOMERPURCHASEORDERDATE sy-vline 
WA_ISDCRDMEMREQITMC_STR-CUSTOMERGROUP sy-vline 
WA_ISDCRDMEMREQITMC_STR-SALESDOCUMENTRJCNREASON sy-vline 
WA_ISDCRDMEMREQITMC_STR-MATERIAL sy-vline 
WA_ISDCRDMEMREQITMC_STR-PRODUCT sy-vline 
WA_ISDCRDMEMREQITMC_STR-MATERIALGROUP sy-vline 
WA_ISDCRDMEMREQITMC_STR-PRODUCTGROUP sy-vline 
WA_ISDCRDMEMREQITMC_STR-PLANT sy-vline 
WA_ISDCRDMEMREQITMC_STR-ITEMGROSSWEIGHT sy-vline 
WA_ISDCRDMEMREQITMC_STR-ITEMNETWEIGHT sy-vline 
WA_ISDCRDMEMREQITMC_STR-ITEMWEIGHTUNIT sy-vline 
WA_ISDCRDMEMREQITMC_STR-ITEMVOLUME sy-vline 
WA_ISDCRDMEMREQITMC_STR-ITEMVOLUMEUNIT sy-vline 
WA_ISDCRDMEMREQITMC_STR-TAXAMOUNT sy-vline 
WA_ISDCRDMEMREQITMC_STR-COSTAMOUNT sy-vline 
WA_ISDCRDMEMREQITMC_STR-SUBTOTAL1AMOUNT sy-vline 
WA_ISDCRDMEMREQITMC_STR-SUBTOTAL2AMOUNT sy-vline 
WA_ISDCRDMEMREQITMC_STR-SUBTOTAL3AMOUNT sy-vline 
WA_ISDCRDMEMREQITMC_STR-SUBTOTAL4AMOUNT sy-vline 
WA_ISDCRDMEMREQITMC_STR-SUBTOTAL5AMOUNT sy-vline 
WA_ISDCRDMEMREQITMC_STR-SUBTOTAL6AMOUNT sy-vline 
WA_ISDCRDMEMREQITMC_STR-BILLINGCOMPANYCODE sy-vline 
WA_ISDCRDMEMREQITMC_STR-ITEMISBILLINGRELEVANT sy-vline 
WA_ISDCRDMEMREQITMC_STR-ITEMBILLINGBLOCKREASON sy-vline 
WA_ISDCRDMEMREQITMC_STR-CUSTOMERPAYMENTTERMS sy-vline 
WA_ISDCRDMEMREQITMC_STR-PAYMENTMETHOD sy-vline 
WA_ISDCRDMEMREQITMC_STR-BUSINESSAREA sy-vline 
WA_ISDCRDMEMREQITMC_STR-SDPROCESSSTATUS sy-vline 
WA_ISDCRDMEMREQITMC_STR-ORDERRELATEDBILLINGSTATUS sy-vline 
WA_ISDCRDMEMREQITMC_STR-BILLINGBLOCKSTATUS sy-vline 
WA_ISDCRDMEMREQITMC_STR-BUSINESSSOLUTIONORDER sy-vline 
WA_ISDCRDMEMREQITMC_STR-BASEUNIT sy-vline 
WA_ISDCRDMEMREQITMC_STR-TRANSACTIONCURRENCY sy-vline 
WA_ISDCRDMEMREQITMC_STR-DISPLAYCURRENCY sy-vline 
WA_ISDCRDMEMREQITMC_STR-NETAMOUNT sy-vline 
WA_ISDCRDMEMREQITMC_STR-CREDITMEMOREQUESTNETAMOUNT sy-vline 
WA_ISDCRDMEMREQITMC_STR-NETAMOUNTINDISPLAYCURRENCY sy-vline 
WA_ISDCRDMEMREQITMC_STR-CREDITMEMOREQUESTNETAMTINDC sy-vline 
WA_ISDCRDMEMREQITMC_STR-CREDITMEMOREQUESTQUANTITY sy-vline 
WA_ISDCRDMEMREQITMC_STR-NUMBEROFCREDITMEMOREQUESTITEMS sy-vline      INTO ld_text SEPARATED BY SPACE.

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