ABAP Select data from SAP table CCPCVERCOMPHDR into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CCPCVERCOMPHDR 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 CCPCVERCOMPHDR. 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 CCPCVERCOMPHDR 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_CCPCVERCOMPHDR TYPE STANDARD TABLE OF CCPCVERCOMPHDR,
      WA_CCPCVERCOMPHDR TYPE CCPCVERCOMPHDR,
      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: <CCPCVERCOMPHDR> TYPE CCPCVERCOMPHDR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCPCVERCOMPHDR
*  INTO TABLE @DATA(IT_CCPCVERCOMPHDR2).
*--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_CCPCVERCOMPHDR INDEX 1 INTO DATA(WA_CCPCVERCOMPHDR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCPCVERCOMPHDR>-MANDT = 1.
<CCPCVERCOMPHDR>-CNTRLPURCONTRVERSONE = 1.
<CCPCVERCOMPHDR>-CNTRLPURCONTRVERSTWO = 1.
<CCPCVERCOMPHDR>-VALIDITYSTARTDATE = 1.
<CCPCVERCOMPHDR>-CREATEDBYUSER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCPCVERCOMPHDR-CREATIONDATE, sy-vline,
  WA_CCPCVERCOMPHDR-PURCHASINGDOCUMENTTYPENAME, sy-vline,
  WA_CCPCVERCOMPHDR-PURCHASECONTRACTTYPE, sy-vline,
  WA_CCPCVERCOMPHDR-PURCHASINGORGANIZATIONNAME, sy-vline,
  WA_CCPCVERCOMPHDR-PURCHASINGORGANIZATION, sy-vline,
  WA_CCPCVERCOMPHDR-COMPANYCODENAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCPCVERCOMPHDR 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_CCPCVERCOMPHDR 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_CCPCVERCOMPHDR INTO WA_CCPCVERCOMPHDR.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PURCHASINGDOCSECONDVERSION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCPCVERCOMPHDR-PURCHASINGDOCSECONDVERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCPCVERCOMPHDR-PURCHASINGDOCSECONDVERSION.
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_CCPCVERCOMPHDR_STR, 
MANDT TYPE STRING,
CNTRLPURCONTRVERSONE TYPE STRING,
CNTRLPURCONTRVERSTWO TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
PURCHASINGDOCUMENTTYPENAME TYPE STRING,
PURCHASECONTRACTTYPE TYPE STRING,
PURCHASINGORGANIZATIONNAME TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
COMPANYCODENAME TYPE STRING,
COMPANYCODE TYPE STRING,
SUPPLIERNAME TYPE STRING,
SUPPLIER TYPE STRING,
PURCHASINGDOCUMENTVERSION TYPE STRING,
CENTRALPURCHASECONTRACT TYPE STRING,
CHANGEREQUESTNOTE TYPE STRING,
CNTRLPURCONTRDESCRIPTION TYPE STRING,
PURCHASINGDOCFIRSTVERSION TYPE STRING,
PURCHASINGDOCSECONDVERSION TYPE STRING,
PURGDOCFIRSTVERSTYPETEXT TYPE STRING,
PURGDOCSECONDVERSTYPETEXT TYPE STRING,
HASNOTE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCPCVERCOMPHDR_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_CCPCVERCOMPHDR_STR-MANDT sy-vline 
WA_CCPCVERCOMPHDR_STR-CNTRLPURCONTRVERSONE sy-vline 
WA_CCPCVERCOMPHDR_STR-CNTRLPURCONTRVERSTWO sy-vline 
WA_CCPCVERCOMPHDR_STR-VALIDITYSTARTDATE sy-vline 
WA_CCPCVERCOMPHDR_STR-CREATEDBYUSER sy-vline 
WA_CCPCVERCOMPHDR_STR-CREATIONDATE sy-vline 
WA_CCPCVERCOMPHDR_STR-PURCHASINGDOCUMENTTYPENAME sy-vline 
WA_CCPCVERCOMPHDR_STR-PURCHASECONTRACTTYPE sy-vline 
WA_CCPCVERCOMPHDR_STR-PURCHASINGORGANIZATIONNAME sy-vline 
WA_CCPCVERCOMPHDR_STR-PURCHASINGORGANIZATION sy-vline 
WA_CCPCVERCOMPHDR_STR-COMPANYCODENAME sy-vline 
WA_CCPCVERCOMPHDR_STR-COMPANYCODE sy-vline 
WA_CCPCVERCOMPHDR_STR-SUPPLIERNAME sy-vline 
WA_CCPCVERCOMPHDR_STR-SUPPLIER sy-vline 
WA_CCPCVERCOMPHDR_STR-PURCHASINGDOCUMENTVERSION sy-vline 
WA_CCPCVERCOMPHDR_STR-CENTRALPURCHASECONTRACT sy-vline 
WA_CCPCVERCOMPHDR_STR-CHANGEREQUESTNOTE sy-vline 
WA_CCPCVERCOMPHDR_STR-CNTRLPURCONTRDESCRIPTION sy-vline 
WA_CCPCVERCOMPHDR_STR-PURCHASINGDOCFIRSTVERSION sy-vline 
WA_CCPCVERCOMPHDR_STR-PURCHASINGDOCSECONDVERSION sy-vline 
WA_CCPCVERCOMPHDR_STR-PURGDOCFIRSTVERSTYPETEXT sy-vline 
WA_CCPCVERCOMPHDR_STR-PURGDOCSECONDVERSTYPETEXT sy-vline 
WA_CCPCVERCOMPHDR_STR-HASNOTE sy-vline      INTO ld_text SEPARATED BY SPACE.

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