ABAP Select data from SAP table RCNTRLQTN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCNTRLQTN
*  INTO TABLE @DATA(IT_RCNTRLQTN2).
*--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_RCNTRLQTN INDEX 1 INTO DATA(WA_RCNTRLQTN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCNTRLQTN>-MANDT = 1.
<RCNTRLQTN>-CENTRALSUPPLIERQUOTATION = 1.
<RCNTRLQTN>-COMPANYCODE = 1.
<RCNTRLQTN>-PURCHASINGDOCUMENTCATEGORY = 1.
<RCNTRLQTN>-PURCHASINGDOCUMENTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCNTRLQTN-SUPPLIER, sy-vline,
  WA_RCNTRLQTN-CREATEDBYUSER, sy-vline,
  WA_RCNTRLQTN-CREATIONDATE, sy-vline,
  WA_RCNTRLQTN-LASTCHANGEDATETIME, sy-vline,
  WA_RCNTRLQTN-LANGUAGE, sy-vline,
  WA_RCNTRLQTN-DOCUMENTCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCNTRLQTN 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_RCNTRLQTN 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_RCNTRLQTN INTO WA_RCNTRLQTN.


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

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

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RCNTRLQTN-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCNTRLQTN-LANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CENTRALREQUESTFORQUOTATION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RCNTRLQTN-CENTRALREQUESTFORQUOTATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCNTRLQTN-CENTRALREQUESTFORQUOTATION.
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_RCNTRLQTN_STR, 
MANDT TYPE STRING,
CENTRALSUPPLIERQUOTATION TYPE STRING,
COMPANYCODE TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
PURCHASINGDOCUMENTTYPE TYPE STRING,
SUPPLIER TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
LANGUAGE TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
INCOTERMSCLASSIFICATION TYPE STRING,
INCOTERMSTRANSFERLOCATION TYPE STRING,
INCOTERMSVERSION TYPE STRING,
INCOTERMSLOCATION1 TYPE STRING,
INCOTERMSLOCATION2 TYPE STRING,
PAYMENTTERMS TYPE STRING,
CASHDISCOUNT1DAYS TYPE STRING,
CASHDISCOUNT2DAYS TYPE STRING,
CASHDISCOUNT1PERCENT TYPE STRING,
CASHDISCOUNT2PERCENT TYPE STRING,
NETPAYMENTDAYS TYPE STRING,
PRICINGPROCEDURE TYPE STRING,
CENTRALSUPLRQUOTATIONCONDITION TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGDOCUMENTORDERDATE TYPE STRING,
CENTRALREQUESTFORQUOTATION TYPE STRING,
SUPPLIERQUOTATIONEXTERNALID TYPE STRING,
QUOTATIONSUBMISSIONDATE TYPE STRING,
QUOTATIONLATESTSUBMISSIONDATE TYPE STRING,
BINDINGPERIODVALIDITYENDDATE TYPE STRING,
EXCHANGERATE TYPE STRING,
EXCHANGERATEISFIXED TYPE STRING,
QTNLIFECYCLESTATUS TYPE STRING,
FOLLOWONDOCUMENTCATEGORY TYPE STRING,
FOLLOWONDOCUMENTTYPE TYPE STRING,
PURGDOCFOLLOWONDOCUMENTTYPE TYPE STRING,
PURCONTRVALIDITYSTARTDATE TYPE STRING,
PURCONTRVALIDITYENDDATE TYPE STRING,
PURCHASECONTRACTTARGETAMOUNT TYPE STRING,
ISENDOFPURPOSEBLOCKED TYPE STRING,
PURCHASINGDOCUMENTDELETIONCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCNTRLQTN_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_RCNTRLQTN_STR-MANDT sy-vline 
WA_RCNTRLQTN_STR-CENTRALSUPPLIERQUOTATION sy-vline 
WA_RCNTRLQTN_STR-COMPANYCODE sy-vline 
WA_RCNTRLQTN_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_RCNTRLQTN_STR-PURCHASINGDOCUMENTTYPE sy-vline 
WA_RCNTRLQTN_STR-SUPPLIER sy-vline 
WA_RCNTRLQTN_STR-CREATEDBYUSER sy-vline 
WA_RCNTRLQTN_STR-CREATIONDATE sy-vline 
WA_RCNTRLQTN_STR-LASTCHANGEDATETIME sy-vline 
WA_RCNTRLQTN_STR-LANGUAGE sy-vline 
WA_RCNTRLQTN_STR-DOCUMENTCURRENCY sy-vline 
WA_RCNTRLQTN_STR-INCOTERMSCLASSIFICATION sy-vline 
WA_RCNTRLQTN_STR-INCOTERMSTRANSFERLOCATION sy-vline 
WA_RCNTRLQTN_STR-INCOTERMSVERSION sy-vline 
WA_RCNTRLQTN_STR-INCOTERMSLOCATION1 sy-vline 
WA_RCNTRLQTN_STR-INCOTERMSLOCATION2 sy-vline 
WA_RCNTRLQTN_STR-PAYMENTTERMS sy-vline 
WA_RCNTRLQTN_STR-CASHDISCOUNT1DAYS sy-vline 
WA_RCNTRLQTN_STR-CASHDISCOUNT2DAYS sy-vline 
WA_RCNTRLQTN_STR-CASHDISCOUNT1PERCENT sy-vline 
WA_RCNTRLQTN_STR-CASHDISCOUNT2PERCENT sy-vline 
WA_RCNTRLQTN_STR-NETPAYMENTDAYS sy-vline 
WA_RCNTRLQTN_STR-PRICINGPROCEDURE sy-vline 
WA_RCNTRLQTN_STR-CENTRALSUPLRQUOTATIONCONDITION sy-vline 
WA_RCNTRLQTN_STR-PURCHASINGORGANIZATION sy-vline 
WA_RCNTRLQTN_STR-PURCHASINGGROUP sy-vline 
WA_RCNTRLQTN_STR-PURCHASINGDOCUMENTORDERDATE sy-vline 
WA_RCNTRLQTN_STR-CENTRALREQUESTFORQUOTATION sy-vline 
WA_RCNTRLQTN_STR-SUPPLIERQUOTATIONEXTERNALID sy-vline 
WA_RCNTRLQTN_STR-QUOTATIONSUBMISSIONDATE sy-vline 
WA_RCNTRLQTN_STR-QUOTATIONLATESTSUBMISSIONDATE sy-vline 
WA_RCNTRLQTN_STR-BINDINGPERIODVALIDITYENDDATE sy-vline 
WA_RCNTRLQTN_STR-EXCHANGERATE sy-vline 
WA_RCNTRLQTN_STR-EXCHANGERATEISFIXED sy-vline 
WA_RCNTRLQTN_STR-QTNLIFECYCLESTATUS sy-vline 
WA_RCNTRLQTN_STR-FOLLOWONDOCUMENTCATEGORY sy-vline 
WA_RCNTRLQTN_STR-FOLLOWONDOCUMENTTYPE sy-vline 
WA_RCNTRLQTN_STR-PURGDOCFOLLOWONDOCUMENTTYPE sy-vline 
WA_RCNTRLQTN_STR-PURCONTRVALIDITYSTARTDATE sy-vline 
WA_RCNTRLQTN_STR-PURCONTRVALIDITYENDDATE sy-vline 
WA_RCNTRLQTN_STR-PURCHASECONTRACTTARGETAMOUNT sy-vline 
WA_RCNTRLQTN_STR-ISENDOFPURPOSEBLOCKED sy-vline 
WA_RCNTRLQTN_STR-PURCHASINGDOCUMENTDELETIONCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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