ABAP Select data from SAP table CQTNITEMCOMP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CQTNITEMCOMP
*  INTO TABLE @DATA(IT_CQTNITEMCOMP2).
*--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_CQTNITEMCOMP INDEX 1 INTO DATA(WA_CQTNITEMCOMP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CQTNITEMCOMP>-MANDT = 1.
<CQTNITEMCOMP>-SUPPLIERQUOTATION = 1.
<CQTNITEMCOMP>-REQUESTFORQUOTATION = 1.
<CQTNITEMCOMP>-SUPPLIERQUOTATIONITEM = 1.
<CQTNITEMCOMP>-PURCHASINGDOCUMENTCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CQTNITEMCOMP-PURCHASINGDOCUMENTITEMTEXT, sy-vline,
  WA_CQTNITEMCOMP-CREATIONDATE, sy-vline,
  WA_CQTNITEMCOMP-SUPPLIER, sy-vline,
  WA_CQTNITEMCOMP-SUPPLIERNAME, sy-vline,
  WA_CQTNITEMCOMP-MATERIAL, sy-vline,
  WA_CQTNITEMCOMP-PRODUCTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CQTNITEMCOMP 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_CQTNITEMCOMP 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_CQTNITEMCOMP INTO WA_CQTNITEMCOMP.


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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PURCHASINGINFORECORD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CQTNITEMCOMP-PURCHASINGINFORECORD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CQTNITEMCOMP-PURCHASINGINFORECORD.
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_CQTNITEMCOMP_STR, 
MANDT TYPE STRING,
SUPPLIERQUOTATION TYPE STRING,
REQUESTFORQUOTATION TYPE STRING,
SUPPLIERQUOTATIONITEM TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
PURCHASINGDOCUMENTITEMTEXT TYPE STRING,
CREATIONDATE TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLIERNAME TYPE STRING,
MATERIAL TYPE STRING,
PRODUCTTYPE TYPE STRING,
MANUFACTURERMATERIAL TYPE STRING,
MATERIALGROUP TYPE STRING,
PLANT TYPE STRING,
SCHEDULELINEDELIVERYDATE TYPE STRING,
QUOTATIONQUANTITY TYPE STRING,
REQUESTEDQUANTITY TYPE STRING,
AWARDEDQUANTITY TYPE STRING,
PERFORMANCEPERIODSTARTDATE TYPE STRING,
PERFORMANCEPERIODENDDATE TYPE STRING,
ORDERPRICEUNIT TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
NETAMOUNT TYPE STRING,
GROSSAMOUNT TYPE STRING,
NETPRICEAMOUNT TYPE STRING,
NETPRICEQUANTITY TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
PURCHASEREQUISITION TYPE STRING,
PURCHASEREQUISITIONITEM TYPE STRING,
FORMATTEDPURREQUISITIONITEM TYPE STRING,
FORMATTEDRFQITEM TYPE STRING,
REQUESTFORQUOTATIONITEM TYPE STRING,
ISINFORECORDUPDATED TYPE STRING,
PURCHASINGINFORECORDUPDATECODE TYPE STRING,
PURCHASINGINFORECORD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CQTNITEMCOMP_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_CQTNITEMCOMP_STR-MANDT sy-vline 
WA_CQTNITEMCOMP_STR-SUPPLIERQUOTATION sy-vline 
WA_CQTNITEMCOMP_STR-REQUESTFORQUOTATION sy-vline 
WA_CQTNITEMCOMP_STR-SUPPLIERQUOTATIONITEM sy-vline 
WA_CQTNITEMCOMP_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_CQTNITEMCOMP_STR-PURCHASINGDOCUMENTITEMTEXT sy-vline 
WA_CQTNITEMCOMP_STR-CREATIONDATE sy-vline 
WA_CQTNITEMCOMP_STR-SUPPLIER sy-vline 
WA_CQTNITEMCOMP_STR-SUPPLIERNAME sy-vline 
WA_CQTNITEMCOMP_STR-MATERIAL sy-vline 
WA_CQTNITEMCOMP_STR-PRODUCTTYPE sy-vline 
WA_CQTNITEMCOMP_STR-MANUFACTURERMATERIAL sy-vline 
WA_CQTNITEMCOMP_STR-MATERIALGROUP sy-vline 
WA_CQTNITEMCOMP_STR-PLANT sy-vline 
WA_CQTNITEMCOMP_STR-SCHEDULELINEDELIVERYDATE sy-vline 
WA_CQTNITEMCOMP_STR-QUOTATIONQUANTITY sy-vline 
WA_CQTNITEMCOMP_STR-REQUESTEDQUANTITY sy-vline 
WA_CQTNITEMCOMP_STR-AWARDEDQUANTITY sy-vline 
WA_CQTNITEMCOMP_STR-PERFORMANCEPERIODSTARTDATE sy-vline 
WA_CQTNITEMCOMP_STR-PERFORMANCEPERIODENDDATE sy-vline 
WA_CQTNITEMCOMP_STR-ORDERPRICEUNIT sy-vline 
WA_CQTNITEMCOMP_STR-ORDERQUANTITYUNIT sy-vline 
WA_CQTNITEMCOMP_STR-NETAMOUNT sy-vline 
WA_CQTNITEMCOMP_STR-GROSSAMOUNT sy-vline 
WA_CQTNITEMCOMP_STR-NETPRICEAMOUNT sy-vline 
WA_CQTNITEMCOMP_STR-NETPRICEQUANTITY sy-vline 
WA_CQTNITEMCOMP_STR-DOCUMENTCURRENCY sy-vline 
WA_CQTNITEMCOMP_STR-PURCHASEREQUISITION sy-vline 
WA_CQTNITEMCOMP_STR-PURCHASEREQUISITIONITEM sy-vline 
WA_CQTNITEMCOMP_STR-FORMATTEDPURREQUISITIONITEM sy-vline 
WA_CQTNITEMCOMP_STR-FORMATTEDRFQITEM sy-vline 
WA_CQTNITEMCOMP_STR-REQUESTFORQUOTATIONITEM sy-vline 
WA_CQTNITEMCOMP_STR-ISINFORECORDUPDATED sy-vline 
WA_CQTNITEMCOMP_STR-PURCHASINGINFORECORDUPDATECODE sy-vline 
WA_CQTNITEMCOMP_STR-PURCHASINGINFORECORD sy-vline      INTO ld_text SEPARATED BY SPACE.

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