ABAP Select data from SAP table CCNTRLREQPROCFL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCNTRLREQPROCFL
*  INTO TABLE @DATA(IT_CCNTRLREQPROCFL2).
*--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_CCNTRLREQPROCFL INDEX 1 INTO DATA(WA_CCNTRLREQPROCFL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCNTRLREQPROCFL>-MANDT = 1.
<CCNTRLREQPROCFL>-PRECEDINGDOCUMENT = 1.
<CCNTRLREQPROCFL>-PRECEDINGDOCUMENTCATEGORY = 1.
<CCNTRLREQPROCFL>-SUBSEQUENTDOCUMENT = 1.
<CCNTRLREQPROCFL>-SUBSEQUENTDOCUMENTCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCNTRLREQPROCFL-CENTRALREQUESTFORQUOTATION, sy-vline,
  WA_CCNTRLREQPROCFL-PURCHASINGDOCUMENTTYPE, sy-vline,
  WA_CCNTRLREQPROCFL-COMPANYCODE, sy-vline,
  WA_CCNTRLREQPROCFL-FISCALYEAR, sy-vline,
  WA_CCNTRLREQPROCFL-PURCHASINGGROUP, sy-vline,
  WA_CCNTRLREQPROCFL-PURCHASINGORGANIZATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCNTRLREQPROCFL 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_CCNTRLREQPROCFL 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_CCNTRLREQPROCFL INTO WA_CCNTRLREQPROCFL.


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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CCNTRLREQPROCFL-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCNTRLREQPROCFL-FISCALYEAR.
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_CCNTRLREQPROCFL_STR, 
MANDT TYPE STRING,
PRECEDINGDOCUMENT TYPE STRING,
PRECEDINGDOCUMENTCATEGORY TYPE STRING,
SUBSEQUENTDOCUMENT TYPE STRING,
SUBSEQUENTDOCUMENTCATEGORY TYPE STRING,
CENTRALREQUESTFORQUOTATION TYPE STRING,
PURCHASINGDOCUMENTTYPE TYPE STRING,
COMPANYCODE TYPE STRING,
FISCALYEAR TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
ISENDOFPURPOSEBLOCKED TYPE STRING,
PURCHASINGDOCUMENTUNIQUEID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCNTRLREQPROCFL_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_CCNTRLREQPROCFL_STR-MANDT sy-vline 
WA_CCNTRLREQPROCFL_STR-PRECEDINGDOCUMENT sy-vline 
WA_CCNTRLREQPROCFL_STR-PRECEDINGDOCUMENTCATEGORY sy-vline 
WA_CCNTRLREQPROCFL_STR-SUBSEQUENTDOCUMENT sy-vline 
WA_CCNTRLREQPROCFL_STR-SUBSEQUENTDOCUMENTCATEGORY sy-vline 
WA_CCNTRLREQPROCFL_STR-CENTRALREQUESTFORQUOTATION sy-vline 
WA_CCNTRLREQPROCFL_STR-PURCHASINGDOCUMENTTYPE sy-vline 
WA_CCNTRLREQPROCFL_STR-COMPANYCODE sy-vline 
WA_CCNTRLREQPROCFL_STR-FISCALYEAR sy-vline 
WA_CCNTRLREQPROCFL_STR-PURCHASINGGROUP sy-vline 
WA_CCNTRLREQPROCFL_STR-PURCHASINGORGANIZATION sy-vline 
WA_CCNTRLREQPROCFL_STR-ISENDOFPURPOSEBLOCKED sy-vline 
WA_CCNTRLREQPROCFL_STR-PURCHASINGDOCUMENTUNIQUEID sy-vline      INTO ld_text SEPARATED BY SPACE.

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