ABAP Select data from SAP table CMMRFQENH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMMRFQENH
*  INTO TABLE @DATA(IT_CMMRFQENH2).
*--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_CMMRFQENH INDEX 1 INTO DATA(WA_CMMRFQENH2).


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

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

ENDLOOP.

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

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


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

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CMMRFQENH-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMRFQENH-LANGUAGE.
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_CMMRFQENH_STR, 
MANDT TYPE STRING,
REQUESTFORQUOTATION TYPE STRING,
COMPANYCODE TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
PURCHASINGDOCUMENTTYPE TYPE STRING,
CREATIONDATE TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
FULLNAME TYPE STRING,
LANGUAGE TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
INCOTERMSVERSION TYPE STRING,
INCOTERMSCLASSIFICATION TYPE STRING,
INCOTERMSTRANSFERLOCATION 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,
RFQPUBLISHINGDATE TYPE STRING,
QUOTATIONLATESTSUBMISSIONDATE TYPE STRING,
BINDINGPERIODVALIDITYENDDATE TYPE STRING,
TARGETAMOUNT TYPE STRING,
CORRESPNCINTERNALREFERENCE TYPE STRING,
RFQLIFECYCLESTATUS TYPE STRING,
REQUESTFORQUOTATIONNAME TYPE STRING,
QUOTATIONEARLIESTSUBMSNDATE TYPE STRING,
LATESTREGISTRATIONDATE TYPE STRING,
FOLLOWONDOCUMENTCATEGORY TYPE STRING,
FOLLOWONDOCUMENTTYPE TYPE STRING,
PURCONTRVALIDITYSTARTDATE TYPE STRING,
PURCONTRVALIDITYENDDATE TYPE STRING,
APPROVERNAME TYPE STRING,
APPROVERUSER TYPE STRING,
ISENDOFPURPOSEBLOCKED TYPE STRING,
ISLGLTRANSINTEGENABLED TYPE STRING,
ISCHANGEDOCUMENTSENABLED TYPE STRING,
NOTETYPELISTTEXT TYPE STRING,
RFQAWARDINGTYPE TYPE STRING,
RFQEXTERNALPROCESSINGTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMMRFQENH_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_CMMRFQENH_STR-MANDT sy-vline 
WA_CMMRFQENH_STR-REQUESTFORQUOTATION sy-vline 
WA_CMMRFQENH_STR-COMPANYCODE sy-vline 
WA_CMMRFQENH_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_CMMRFQENH_STR-PURCHASINGDOCUMENTTYPE sy-vline 
WA_CMMRFQENH_STR-CREATIONDATE sy-vline 
WA_CMMRFQENH_STR-LASTCHANGEDATETIME sy-vline 
WA_CMMRFQENH_STR-CREATEDBYUSER sy-vline 
WA_CMMRFQENH_STR-FULLNAME sy-vline 
WA_CMMRFQENH_STR-LANGUAGE sy-vline 
WA_CMMRFQENH_STR-DOCUMENTCURRENCY sy-vline 
WA_CMMRFQENH_STR-PURCHASINGORGANIZATION sy-vline 
WA_CMMRFQENH_STR-PURCHASINGGROUP sy-vline 
WA_CMMRFQENH_STR-INCOTERMSVERSION sy-vline 
WA_CMMRFQENH_STR-INCOTERMSCLASSIFICATION sy-vline 
WA_CMMRFQENH_STR-INCOTERMSTRANSFERLOCATION sy-vline 
WA_CMMRFQENH_STR-INCOTERMSLOCATION1 sy-vline 
WA_CMMRFQENH_STR-INCOTERMSLOCATION2 sy-vline 
WA_CMMRFQENH_STR-PAYMENTTERMS sy-vline 
WA_CMMRFQENH_STR-CASHDISCOUNT1DAYS sy-vline 
WA_CMMRFQENH_STR-CASHDISCOUNT2DAYS sy-vline 
WA_CMMRFQENH_STR-CASHDISCOUNT1PERCENT sy-vline 
WA_CMMRFQENH_STR-CASHDISCOUNT2PERCENT sy-vline 
WA_CMMRFQENH_STR-NETPAYMENTDAYS sy-vline 
WA_CMMRFQENH_STR-RFQPUBLISHINGDATE sy-vline 
WA_CMMRFQENH_STR-QUOTATIONLATESTSUBMISSIONDATE sy-vline 
WA_CMMRFQENH_STR-BINDINGPERIODVALIDITYENDDATE sy-vline 
WA_CMMRFQENH_STR-TARGETAMOUNT sy-vline 
WA_CMMRFQENH_STR-CORRESPNCINTERNALREFERENCE sy-vline 
WA_CMMRFQENH_STR-RFQLIFECYCLESTATUS sy-vline 
WA_CMMRFQENH_STR-REQUESTFORQUOTATIONNAME sy-vline 
WA_CMMRFQENH_STR-QUOTATIONEARLIESTSUBMSNDATE sy-vline 
WA_CMMRFQENH_STR-LATESTREGISTRATIONDATE sy-vline 
WA_CMMRFQENH_STR-FOLLOWONDOCUMENTCATEGORY sy-vline 
WA_CMMRFQENH_STR-FOLLOWONDOCUMENTTYPE sy-vline 
WA_CMMRFQENH_STR-PURCONTRVALIDITYSTARTDATE sy-vline 
WA_CMMRFQENH_STR-PURCONTRVALIDITYENDDATE sy-vline 
WA_CMMRFQENH_STR-APPROVERNAME sy-vline 
WA_CMMRFQENH_STR-APPROVERUSER sy-vline 
WA_CMMRFQENH_STR-ISENDOFPURPOSEBLOCKED sy-vline 
WA_CMMRFQENH_STR-ISLGLTRANSINTEGENABLED sy-vline 
WA_CMMRFQENH_STR-ISCHANGEDOCUMENTSENABLED sy-vline 
WA_CMMRFQENH_STR-NOTETYPELISTTEXT sy-vline 
WA_CMMRFQENH_STR-RFQAWARDINGTYPE sy-vline 
WA_CMMRFQENH_STR-RFQEXTERNALPROCESSINGTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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