ABAP Select data from SAP table V_MRP_PURCH_DOC 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 V_MRP_PURCH_DOC 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 V_MRP_PURCH_DOC. 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 V_MRP_PURCH_DOC 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_V_MRP_PURCH_DOC TYPE STANDARD TABLE OF V_MRP_PURCH_DOC,
      WA_V_MRP_PURCH_DOC TYPE V_MRP_PURCH_DOC,
      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: <V_MRP_PURCH_DOC> TYPE V_MRP_PURCH_DOC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_MRP_PURCH_DOC
*  INTO TABLE @DATA(IT_V_MRP_PURCH_DOC2).
*--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_V_MRP_PURCH_DOC INDEX 1 INTO DATA(WA_V_MRP_PURCH_DOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_MRP_PURCH_DOC>-MANDT = 1.
<V_MRP_PURCH_DOC>-PURCHASINGDOC = 1.
<V_MRP_PURCH_DOC>-PURCHASINGDOCCATEGORY = 1.
<V_MRP_PURCH_DOC>-PURCHASINGDOCTYPE = 1.
<V_MRP_PURCH_DOC>-CREATIONDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_MRP_PURCH_DOC-CREATEDBYUSER, sy-vline,
  WA_V_MRP_PURCH_DOC-PURCHASINGDOCITEM5, sy-vline,
  WA_V_MRP_PURCH_DOC-PURCHASINGDOCITEM6, sy-vline,
  WA_V_MRP_PURCH_DOC-PURCHASINGDOCSCHEDULELINE, sy-vline,
  WA_V_MRP_PURCH_DOC-PURCHASINGDOCITEMCATEGORY, sy-vline,
  WA_V_MRP_PURCH_DOC-PURCHASINGDOCDELETION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_MRP_PURCH_DOC 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_V_MRP_PURCH_DOC 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_V_MRP_PURCH_DOC INTO WA_V_MRP_PURCH_DOC.


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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PURCHASEOUTLINEAGREEMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_MRP_PURCH_DOC-PURCHASEOUTLINEAGREEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_MRP_PURCH_DOC-PURCHASEOUTLINEAGREEMENT.
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_V_MRP_PURCH_DOC_STR, 
MANDT TYPE STRING,
PURCHASINGDOC TYPE STRING,
PURCHASINGDOCCATEGORY TYPE STRING,
PURCHASINGDOCTYPE TYPE STRING,
CREATIONDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
PURCHASINGDOCITEM5 TYPE STRING,
PURCHASINGDOCITEM6 TYPE STRING,
PURCHASINGDOCSCHEDULELINE TYPE STRING,
PURCHASINGDOCITEMCATEGORY TYPE STRING,
PURCHASINGDOCDELETION TYPE STRING,
PURCHASINGDOCRELEASEDATE TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
SUPPLYINGPLANT TYPE STRING,
VENDOR TYPE STRING,
FIXEDVENDOR TYPE STRING,
MATERIALIDBYVENDOR TYPE STRING,
INVENTORYSPECIALSTOCK TYPE STRING,
SALESDOCUMENT TYPE STRING,
SALESDOCUMENTITEM TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
PURCHASINGINFORECORD TYPE STRING,
MATERIALPLANNEDDELIVERYDURN TYPE STRING,
MATERIALGOODSRECEIPTDURATION TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
PURCHASINGDOCSCHEDULELINEDATE TYPE STRING,
REQUISITIONDATE TYPE STRING,
DELIVERYDATE TYPE STRING,
PURCHASINGDOCUMENTISFIXED TYPE STRING,
DELIVERYDATEQUANTITYISFIXED TYPE STRING,
DOCQTYTOBASEQTYNMRTR TYPE STRING,
DOCQTYTOBASEQTYDNMNTR TYPE STRING,
UNDERDELIVERYTOLRLMTRATIOINPCT TYPE STRING,
PARTIALDELIVERYISALLOWED TYPE STRING,
PURCHASINGDOCUMENTORDERQTY TYPE STRING,
PURCHASINGDOCORDERQTYUNIT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
AMOUNTINDOCUMENTCURRENCY TYPE STRING,
PRICEINDOCUMENTCURRENCY TYPE STRING,
SCHEDULEDQUANTITY TYPE STRING,
GOODSRECEIPTQUANTITY TYPE STRING,
OPENQUANTITY TYPE STRING,
ORDEREDQUANTITY TYPE STRING,
REQUESTEDGOODSISSUEDATE TYPE STRING,
REQUESTEDLOADINGDATE TYPE STRING,
REQUESTEDDELIVERYDATE TYPE STRING,
PRODUCTAVAILABILITYDATE TYPE STRING,
PURCHASINGDOCISACKNDBYVENDOR TYPE STRING,
PURCHASEOUTLINEAGREEMENT TYPE STRING,
PURCHASEOUTLINEAGREEMENTITEM TYPE STRING,
DELIVERYPRIORITY TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
DOCISSCHEDULEAGREEMENT TYPE STRING,
DOCISPURCHASEREQUISITION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_MRP_PURCH_DOC_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_V_MRP_PURCH_DOC_STR-MANDT sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASINGDOC sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASINGDOCCATEGORY sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASINGDOCTYPE sy-vline 
WA_V_MRP_PURCH_DOC_STR-CREATIONDATE sy-vline 
WA_V_MRP_PURCH_DOC_STR-CREATEDBYUSER sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASINGDOCITEM5 sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASINGDOCITEM6 sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASINGDOCSCHEDULELINE sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASINGDOCITEMCATEGORY sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASINGDOCDELETION sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASINGDOCRELEASEDATE sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASINGORGANIZATION sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASINGGROUP sy-vline 
WA_V_MRP_PURCH_DOC_STR-MATERIAL sy-vline 
WA_V_MRP_PURCH_DOC_STR-PLANT sy-vline 
WA_V_MRP_PURCH_DOC_STR-SUPPLYINGPLANT sy-vline 
WA_V_MRP_PURCH_DOC_STR-VENDOR sy-vline 
WA_V_MRP_PURCH_DOC_STR-FIXEDVENDOR sy-vline 
WA_V_MRP_PURCH_DOC_STR-MATERIALIDBYVENDOR sy-vline 
WA_V_MRP_PURCH_DOC_STR-INVENTORYSPECIALSTOCK sy-vline 
WA_V_MRP_PURCH_DOC_STR-SALESDOCUMENT sy-vline 
WA_V_MRP_PURCH_DOC_STR-SALESDOCUMENTITEM sy-vline 
WA_V_MRP_PURCH_DOC_STR-WBSELEMENTINTERNALID sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASINGINFORECORD sy-vline 
WA_V_MRP_PURCH_DOC_STR-MATERIALPLANNEDDELIVERYDURN sy-vline 
WA_V_MRP_PURCH_DOC_STR-MATERIALGOODSRECEIPTDURATION sy-vline 
WA_V_MRP_PURCH_DOC_STR-MATERIALBASEUNIT sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASINGDOCSCHEDULELINEDATE sy-vline 
WA_V_MRP_PURCH_DOC_STR-REQUISITIONDATE sy-vline 
WA_V_MRP_PURCH_DOC_STR-DELIVERYDATE sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASINGDOCUMENTISFIXED sy-vline 
WA_V_MRP_PURCH_DOC_STR-DELIVERYDATEQUANTITYISFIXED sy-vline 
WA_V_MRP_PURCH_DOC_STR-DOCQTYTOBASEQTYNMRTR sy-vline 
WA_V_MRP_PURCH_DOC_STR-DOCQTYTOBASEQTYDNMNTR sy-vline 
WA_V_MRP_PURCH_DOC_STR-UNDERDELIVERYTOLRLMTRATIOINPCT sy-vline 
WA_V_MRP_PURCH_DOC_STR-PARTIALDELIVERYISALLOWED sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASINGDOCUMENTORDERQTY sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASINGDOCORDERQTYUNIT sy-vline 
WA_V_MRP_PURCH_DOC_STR-DOCUMENTCURRENCY sy-vline 
WA_V_MRP_PURCH_DOC_STR-AMOUNTINDOCUMENTCURRENCY sy-vline 
WA_V_MRP_PURCH_DOC_STR-PRICEINDOCUMENTCURRENCY sy-vline 
WA_V_MRP_PURCH_DOC_STR-SCHEDULEDQUANTITY sy-vline 
WA_V_MRP_PURCH_DOC_STR-GOODSRECEIPTQUANTITY sy-vline 
WA_V_MRP_PURCH_DOC_STR-OPENQUANTITY sy-vline 
WA_V_MRP_PURCH_DOC_STR-ORDEREDQUANTITY sy-vline 
WA_V_MRP_PURCH_DOC_STR-REQUESTEDGOODSISSUEDATE sy-vline 
WA_V_MRP_PURCH_DOC_STR-REQUESTEDLOADINGDATE sy-vline 
WA_V_MRP_PURCH_DOC_STR-REQUESTEDDELIVERYDATE sy-vline 
WA_V_MRP_PURCH_DOC_STR-PRODUCTAVAILABILITYDATE sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASINGDOCISACKNDBYVENDOR sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASEOUTLINEAGREEMENT sy-vline 
WA_V_MRP_PURCH_DOC_STR-PURCHASEOUTLINEAGREEMENTITEM sy-vline 
WA_V_MRP_PURCH_DOC_STR-DELIVERYPRIORITY sy-vline 
WA_V_MRP_PURCH_DOC_STR-SALESORGANIZATION sy-vline 
WA_V_MRP_PURCH_DOC_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_V_MRP_PURCH_DOC_STR-DIVISION sy-vline 
WA_V_MRP_PURCH_DOC_STR-DOCISSCHEDULEAGREEMENT sy-vline 
WA_V_MRP_PURCH_DOC_STR-DOCISPURCHASEREQUISITION sy-vline      INTO ld_text SEPARATED BY SPACE.

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