ABAP Select data from SAP table CPVVALNDOCHDRQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPVVALNDOCHDRQ
*  INTO TABLE @DATA(IT_CPVVALNDOCHDRQ2).
*--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_CPVVALNDOCHDRQ INDEX 1 INTO DATA(WA_CPVVALNDOCHDRQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPVVALNDOCHDRQ>-MANDT = 1.
<CPVVALNDOCHDRQ>-VALUATIONDOCUMENTNUMBER = 1.
<CPVVALNDOCHDRQ>-VALUATIONDOCUMENTYEAR = 1.
<CPVVALNDOCHDRQ>-VALUATIONDOCUMENTSTATUS = 1.
<CPVVALNDOCHDRQ>-PRIMARYGEOGRLLOCATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPVVALNDOCHDRQ-DELIVERYNETWORKHIER, sy-vline,
  WA_CPVVALNDOCHDRQ-DELIVERYNETWORK, sy-vline,
  WA_CPVVALNDOCHDRQ-SALESDATE, sy-vline,
  WA_CPVVALNDOCHDRQ-ALLOCATIONFREQUENCY, sy-vline,
  WA_CPVVALNDOCHDRQ-VALUATIONDOCUMENTTYPE, sy-vline,
  WA_CPVVALNDOCHDRQ-PROCESSINGSTATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPVVALNDOCHDRQ 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_CPVVALNDOCHDRQ 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_CPVVALNDOCHDRQ INTO WA_CPVVALNDOCHDRQ.


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

*Conversion exit GJAHR, internal->external for field VALUATIONDOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CPVVALNDOCHDRQ-VALUATIONDOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPVVALNDOCHDRQ-VALUATIONDOCUMENTYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DELIVERYNETWORK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPVVALNDOCHDRQ-DELIVERYNETWORK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPVVALNDOCHDRQ-DELIVERYNETWORK.
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_CPVVALNDOCHDRQ_STR, 
MANDT TYPE STRING,
VALUATIONDOCUMENTNUMBER TYPE STRING,
VALUATIONDOCUMENTYEAR TYPE STRING,
VALUATIONDOCUMENTSTATUS TYPE STRING,
PRIMARYGEOGRLLOCATION TYPE STRING,
DELIVERYNETWORKHIER TYPE STRING,
DELIVERYNETWORK TYPE STRING,
SALESDATE TYPE STRING,
ALLOCATIONFREQUENCY TYPE STRING,
VALUATIONDOCUMENTTYPE TYPE STRING,
PROCESSINGSTATUS TYPE STRING,
LASTEXECUTIONDATE TYPE STRING,
LASTEXECUTIONTIME TYPE STRING,
NUMBEROFDOCUMENTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPVVALNDOCHDRQ_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_CPVVALNDOCHDRQ_STR-MANDT sy-vline 
WA_CPVVALNDOCHDRQ_STR-VALUATIONDOCUMENTNUMBER sy-vline 
WA_CPVVALNDOCHDRQ_STR-VALUATIONDOCUMENTYEAR sy-vline 
WA_CPVVALNDOCHDRQ_STR-VALUATIONDOCUMENTSTATUS sy-vline 
WA_CPVVALNDOCHDRQ_STR-PRIMARYGEOGRLLOCATION sy-vline 
WA_CPVVALNDOCHDRQ_STR-DELIVERYNETWORKHIER sy-vline 
WA_CPVVALNDOCHDRQ_STR-DELIVERYNETWORK sy-vline 
WA_CPVVALNDOCHDRQ_STR-SALESDATE sy-vline 
WA_CPVVALNDOCHDRQ_STR-ALLOCATIONFREQUENCY sy-vline 
WA_CPVVALNDOCHDRQ_STR-VALUATIONDOCUMENTTYPE sy-vline 
WA_CPVVALNDOCHDRQ_STR-PROCESSINGSTATUS sy-vline 
WA_CPVVALNDOCHDRQ_STR-LASTEXECUTIONDATE sy-vline 
WA_CPVVALNDOCHDRQ_STR-LASTEXECUTIONTIME sy-vline 
WA_CPVVALNDOCHDRQ_STR-NUMBEROFDOCUMENTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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