ABAP Select data from SAP table PAYREQN_PAYSTGYD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAYREQN_PAYSTGYD
*  INTO TABLE @DATA(IT_PAYREQN_PAYSTGYD2).
*--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_PAYREQN_PAYSTGYD INDEX 1 INTO DATA(WA_PAYREQN_PAYSTGYD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAYREQN_PAYSTGYD>-MANDT = 1.
<PAYREQN_PAYSTGYD>-PAYMENTREQUISITIONSTRATEGYUUID = 1.
<PAYREQN_PAYSTGYD>-PAYMENTREQUISITIONUUID = 1.
<PAYREQN_PAYSTGYD>-PAYTREQUISITIONSTRATEGYNUMBER = 1.
<PAYREQN_PAYSTGYD>-PAYMENTREQNSTRATEGYSTATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAYREQN_PAYSTGYD-PAYTREQNSTRATEGYAMTINTRANSCRCY, sy-vline,
  WA_PAYREQN_PAYSTGYD-CURRENCY, sy-vline,
  WA_PAYREQN_PAYSTGYD-PAYMENTMETHOD, sy-vline,
  WA_PAYREQN_PAYSTGYD-PAYMENTDATE, sy-vline,
  WA_PAYREQN_PAYSTGYD-COMPANYCODE, sy-vline,
  WA_PAYREQN_PAYSTGYD-COUNTRY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAYREQN_PAYSTGYD 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_PAYREQN_PAYSTGYD 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_PAYREQN_PAYSTGYD INTO WA_PAYREQN_PAYSTGYD.


*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 SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PAYREQN_PAYSTGYD-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAYREQN_PAYSTGYD-SUPPLIER.
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_PAYREQN_PAYSTGYD_STR, 
MANDT TYPE STRING,
PAYMENTREQUISITIONSTRATEGYUUID TYPE STRING,
PAYMENTREQUISITIONUUID TYPE STRING,
PAYTREQUISITIONSTRATEGYNUMBER TYPE STRING,
PAYMENTREQNSTRATEGYSTATUS TYPE STRING,
PAYTREQNSTRATEGYAMTINTRANSCRCY TYPE STRING,
CURRENCY TYPE STRING,
PAYMENTMETHOD TYPE STRING,
PAYMENTDATE TYPE STRING,
COMPANYCODE TYPE STRING,
COUNTRY TYPE STRING,
HOUSEBANK TYPE STRING,
HOUSEBANKACCOUNT TYPE STRING,
SUPPLIER TYPE STRING,
BANKCOUNTRY TYPE STRING,
BANK TYPE STRING,
BANKACCOUNT TYPE STRING,
BPBANKACCOUNTINTERNALID TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
CHANGEDONDATETIME TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTFIELDCHANGES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAYREQN_PAYSTGYD_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_PAYREQN_PAYSTGYD_STR-MANDT sy-vline 
WA_PAYREQN_PAYSTGYD_STR-PAYMENTREQUISITIONSTRATEGYUUID sy-vline 
WA_PAYREQN_PAYSTGYD_STR-PAYMENTREQUISITIONUUID sy-vline 
WA_PAYREQN_PAYSTGYD_STR-PAYTREQUISITIONSTRATEGYNUMBER sy-vline 
WA_PAYREQN_PAYSTGYD_STR-PAYMENTREQNSTRATEGYSTATUS sy-vline 
WA_PAYREQN_PAYSTGYD_STR-PAYTREQNSTRATEGYAMTINTRANSCRCY sy-vline 
WA_PAYREQN_PAYSTGYD_STR-CURRENCY sy-vline 
WA_PAYREQN_PAYSTGYD_STR-PAYMENTMETHOD sy-vline 
WA_PAYREQN_PAYSTGYD_STR-PAYMENTDATE sy-vline 
WA_PAYREQN_PAYSTGYD_STR-COMPANYCODE sy-vline 
WA_PAYREQN_PAYSTGYD_STR-COUNTRY sy-vline 
WA_PAYREQN_PAYSTGYD_STR-HOUSEBANK sy-vline 
WA_PAYREQN_PAYSTGYD_STR-HOUSEBANKACCOUNT sy-vline 
WA_PAYREQN_PAYSTGYD_STR-SUPPLIER sy-vline 
WA_PAYREQN_PAYSTGYD_STR-BANKCOUNTRY sy-vline 
WA_PAYREQN_PAYSTGYD_STR-BANK sy-vline 
WA_PAYREQN_PAYSTGYD_STR-BANKACCOUNT sy-vline 
WA_PAYREQN_PAYSTGYD_STR-BPBANKACCOUNTINTERNALID sy-vline 
WA_PAYREQN_PAYSTGYD_STR-CREATEDBYUSER sy-vline 
WA_PAYREQN_PAYSTGYD_STR-CREATIONDATETIME sy-vline 
WA_PAYREQN_PAYSTGYD_STR-LASTCHANGEDBYUSER sy-vline 
WA_PAYREQN_PAYSTGYD_STR-CHANGEDONDATETIME sy-vline 
WA_PAYREQN_PAYSTGYD_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_PAYREQN_PAYSTGYD_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_PAYREQN_PAYSTGYD_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_PAYREQN_PAYSTGYD_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_PAYREQN_PAYSTGYD_STR-HASACTIVEENTITY sy-vline 
WA_PAYREQN_PAYSTGYD_STR-DRAFTFIELDCHANGES sy-vline      INTO ld_text SEPARATED BY SPACE.

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