ABAP Select data from SAP table CREQTRACKCTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CREQTRACKCTR
*  INTO TABLE @DATA(IT_CREQTRACKCTR2).
*--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_CREQTRACKCTR INDEX 1 INTO DATA(WA_CREQTRACKCTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CREQTRACKCTR>-MANDT = 1.
<CREQTRACKCTR>-PURCHASECONTRACT = 1.
<CREQTRACKCTR>-PURCHASECONTRACTITEM = 1.
<CREQTRACKCTR>-FORMATTEDPURCHASECONTRACTITEM = 1.
<CREQTRACKCTR>-MATERIAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CREQTRACKCTR-MATERIALGROUP, sy-vline,
  WA_CREQTRACKCTR-TARGETQUANTITY, sy-vline,
  WA_CREQTRACKCTR-ORDERQUANTITYUNIT, sy-vline,
  WA_CREQTRACKCTR-CONTRACTNETPRICEAMOUNT, sy-vline,
  WA_CREQTRACKCTR-NETPRICEQUANTITY, sy-vline,
  WA_CREQTRACKCTR-ORDERPRICEUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CREQTRACKCTR 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_CREQTRACKCTR 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_CREQTRACKCTR INTO WA_CREQTRACKCTR.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PURCHASINGCATEGORY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CREQTRACKCTR-PURCHASINGCATEGORY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CREQTRACKCTR-PURCHASINGCATEGORY.
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_CREQTRACKCTR_STR, 
MANDT TYPE STRING,
PURCHASECONTRACT TYPE STRING,
PURCHASECONTRACTITEM TYPE STRING,
FORMATTEDPURCHASECONTRACTITEM TYPE STRING,
MATERIAL TYPE STRING,
MATERIALGROUP TYPE STRING,
TARGETQUANTITY TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
CONTRACTNETPRICEAMOUNT TYPE STRING,
NETPRICEQUANTITY TYPE STRING,
ORDERPRICEUNIT TYPE STRING,
TARGETAMOUNT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
RELEASEORDERDATE TYPE STRING,
SUPPLIER TYPE STRING,
VALIDITYENDDATE TYPE STRING,
ACCOUNTASSIGNMENTCATEGORY TYPE STRING,
COMPANYCODE TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
TAXCODE TYPE STRING,
PURCHASECONTRACTTARGETAMOUNT TYPE STRING,
OPENTARGETQUANTITY TYPE STRING,
DUEDATECRITICALITY TYPE STRING,
PURCHASECONTRACTVALIDITYSTATUS TYPE STRING,
PURCONTRVALIDITYSTATUSNAME TYPE STRING,
RELEASECODENAME TYPE STRING,
CREATEDBYUSER TYPE STRING,
USERDESCRIPTION TYPE STRING,
CREATIONDATE TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
PURCHASINGINFORECORD TYPE STRING,
PURCHASINGDOCUMENTTYPE TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
PURGDOCEXTERNALITEMCATEGORY TYPE STRING,
PURGDOCITEMCATEGORYNAME TYPE STRING,
PURCHASINGDOCUMENTITEMCATEGORY TYPE STRING,
PURCHASINGCATEGORY TYPE STRING,
PURGCATNAME TYPE STRING,
PURCHASINGTEXT TYPE STRING,
REQUIREMENTTRACKING TYPE STRING,
PURCHASINGISBLOCKEDFORSUPPLIER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CREQTRACKCTR_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_CREQTRACKCTR_STR-MANDT sy-vline 
WA_CREQTRACKCTR_STR-PURCHASECONTRACT sy-vline 
WA_CREQTRACKCTR_STR-PURCHASECONTRACTITEM sy-vline 
WA_CREQTRACKCTR_STR-FORMATTEDPURCHASECONTRACTITEM sy-vline 
WA_CREQTRACKCTR_STR-MATERIAL sy-vline 
WA_CREQTRACKCTR_STR-MATERIALGROUP sy-vline 
WA_CREQTRACKCTR_STR-TARGETQUANTITY sy-vline 
WA_CREQTRACKCTR_STR-ORDERQUANTITYUNIT sy-vline 
WA_CREQTRACKCTR_STR-CONTRACTNETPRICEAMOUNT sy-vline 
WA_CREQTRACKCTR_STR-NETPRICEQUANTITY sy-vline 
WA_CREQTRACKCTR_STR-ORDERPRICEUNIT sy-vline 
WA_CREQTRACKCTR_STR-TARGETAMOUNT sy-vline 
WA_CREQTRACKCTR_STR-DOCUMENTCURRENCY sy-vline 
WA_CREQTRACKCTR_STR-RELEASEORDERDATE sy-vline 
WA_CREQTRACKCTR_STR-SUPPLIER sy-vline 
WA_CREQTRACKCTR_STR-VALIDITYENDDATE sy-vline 
WA_CREQTRACKCTR_STR-ACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_CREQTRACKCTR_STR-COMPANYCODE sy-vline 
WA_CREQTRACKCTR_STR-PURCHASINGORGANIZATION sy-vline 
WA_CREQTRACKCTR_STR-PURCHASINGGROUP sy-vline 
WA_CREQTRACKCTR_STR-PLANT sy-vline 
WA_CREQTRACKCTR_STR-STORAGELOCATION sy-vline 
WA_CREQTRACKCTR_STR-TAXCODE sy-vline 
WA_CREQTRACKCTR_STR-PURCHASECONTRACTTARGETAMOUNT sy-vline 
WA_CREQTRACKCTR_STR-OPENTARGETQUANTITY sy-vline 
WA_CREQTRACKCTR_STR-DUEDATECRITICALITY sy-vline 
WA_CREQTRACKCTR_STR-PURCHASECONTRACTVALIDITYSTATUS sy-vline 
WA_CREQTRACKCTR_STR-PURCONTRVALIDITYSTATUSNAME sy-vline 
WA_CREQTRACKCTR_STR-RELEASECODENAME sy-vline 
WA_CREQTRACKCTR_STR-CREATEDBYUSER sy-vline 
WA_CREQTRACKCTR_STR-USERDESCRIPTION sy-vline 
WA_CREQTRACKCTR_STR-CREATIONDATE sy-vline 
WA_CREQTRACKCTR_STR-VALIDITYSTARTDATE sy-vline 
WA_CREQTRACKCTR_STR-PURCHASINGINFORECORD sy-vline 
WA_CREQTRACKCTR_STR-PURCHASINGDOCUMENTTYPE sy-vline 
WA_CREQTRACKCTR_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_CREQTRACKCTR_STR-PURGDOCEXTERNALITEMCATEGORY sy-vline 
WA_CREQTRACKCTR_STR-PURGDOCITEMCATEGORYNAME sy-vline 
WA_CREQTRACKCTR_STR-PURCHASINGDOCUMENTITEMCATEGORY sy-vline 
WA_CREQTRACKCTR_STR-PURCHASINGCATEGORY sy-vline 
WA_CREQTRACKCTR_STR-PURGCATNAME sy-vline 
WA_CREQTRACKCTR_STR-PURCHASINGTEXT sy-vline 
WA_CREQTRACKCTR_STR-REQUIREMENTTRACKING sy-vline 
WA_CREQTRACKCTR_STR-PURCHASINGISBLOCKEDFORSUPPLIER sy-vline      INTO ld_text SEPARATED BY SPACE.

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