ABAP Select data from SAP table CPVPAYMENTHDRQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPVPAYMENTHDRQ
*  INTO TABLE @DATA(IT_CPVPAYMENTHDRQ2).
*--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_CPVPAYMENTHDRQ INDEX 1 INTO DATA(WA_CPVPAYMENTHDRQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPVPAYMENTHDRQ>-MANDT = 1.
<CPVPAYMENTHDRQ>-PROCESSRUN = 1.
<CPVPAYMENTHDRQ>-PAYMENTREFERENCE = 1.
<CPVPAYMENTHDRQ>-PRAOWNER = 1.
<CPVPAYMENTHDRQ>-PAYMENTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPVPAYMENTHDRQ-PAYMENTTYPE, sy-vline,
  WA_CPVPAYMENTHDRQ-COMPANYCODE, sy-vline,
  WA_CPVPAYMENTHDRQ-CHECKSTATUS, sy-vline,
  WA_CPVPAYMENTHDRQ-PAYMENTSTATUSDATE, sy-vline,
  WA_CPVPAYMENTHDRQ-PAYMENTHEADERREJECTIONRSN, sy-vline,
  WA_CPVPAYMENTHDRQ-CHECKISOUTOFTOLERANCE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPVPAYMENTHDRQ 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_CPVPAYMENTHDRQ 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_CPVPAYMENTHDRQ INTO WA_CPVPAYMENTHDRQ.


*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 PRAOWNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPVPAYMENTHDRQ-PRAOWNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPVPAYMENTHDRQ-PRAOWNER.
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_CPVPAYMENTHDRQ_STR, 
MANDT TYPE STRING,
PROCESSRUN TYPE STRING,
PAYMENTREFERENCE TYPE STRING,
PRAOWNER TYPE STRING,
PAYMENTDATE TYPE STRING,
PAYMENTTYPE TYPE STRING,
COMPANYCODE TYPE STRING,
CHECKSTATUS TYPE STRING,
PAYMENTSTATUSDATE TYPE STRING,
PAYMENTHEADERREJECTIONRSN TYPE STRING,
CHECKISOUTOFTOLERANCE TYPE STRING,
CHECKISSENTTOBANK TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
OWNERNETAMOUNT TYPE STRING,
VARIANCEAMOUNT TYPE STRING,
VARIANCERATIO TYPE STRING,
MINIMUMPAYMENTAMT TYPE STRING,
NUMBEROFDOCUMENTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPVPAYMENTHDRQ_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_CPVPAYMENTHDRQ_STR-MANDT sy-vline 
WA_CPVPAYMENTHDRQ_STR-PROCESSRUN sy-vline 
WA_CPVPAYMENTHDRQ_STR-PAYMENTREFERENCE sy-vline 
WA_CPVPAYMENTHDRQ_STR-PRAOWNER sy-vline 
WA_CPVPAYMENTHDRQ_STR-PAYMENTDATE sy-vline 
WA_CPVPAYMENTHDRQ_STR-PAYMENTTYPE sy-vline 
WA_CPVPAYMENTHDRQ_STR-COMPANYCODE sy-vline 
WA_CPVPAYMENTHDRQ_STR-CHECKSTATUS sy-vline 
WA_CPVPAYMENTHDRQ_STR-PAYMENTSTATUSDATE sy-vline 
WA_CPVPAYMENTHDRQ_STR-PAYMENTHEADERREJECTIONRSN sy-vline 
WA_CPVPAYMENTHDRQ_STR-CHECKISOUTOFTOLERANCE sy-vline 
WA_CPVPAYMENTHDRQ_STR-CHECKISSENTTOBANK sy-vline 
WA_CPVPAYMENTHDRQ_STR-CREATEDBYUSER sy-vline 
WA_CPVPAYMENTHDRQ_STR-CREATIONDATETIME sy-vline 
WA_CPVPAYMENTHDRQ_STR-COMPANYCODECURRENCY sy-vline 
WA_CPVPAYMENTHDRQ_STR-OWNERNETAMOUNT sy-vline 
WA_CPVPAYMENTHDRQ_STR-VARIANCEAMOUNT sy-vline 
WA_CPVPAYMENTHDRQ_STR-VARIANCERATIO sy-vline 
WA_CPVPAYMENTHDRQ_STR-MINIMUMPAYMENTAMT sy-vline 
WA_CPVPAYMENTHDRQ_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.