ABAP Select data from SAP table IFIAPMANPMNTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFIAPMANPMNTS
*  INTO TABLE @DATA(IT_IFIAPMANPMNTS2).
*--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_IFIAPMANPMNTS INDEX 1 INTO DATA(WA_IFIAPMANPMNTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFIAPMANPMNTS>-MANDT = 1.
<IFIAPMANPMNTS>-COMPANYCODE = 1.
<IFIAPMANPMNTS>-SUPPLIER = 1.
<IFIAPMANPMNTS>-ACCOUNTINGDOCCREATEDBYUSER = 1.
<IFIAPMANPMNTS>-TRANSACTIONCURRENCY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFIAPMANPMNTS-COMPANYCODECURRENCY, sy-vline,
  WA_IFIAPMANPMNTS-DISPLAYCURRENCY, sy-vline,
  WA_IFIAPMANPMNTS-KEYDATE, sy-vline,
  WA_IFIAPMANPMNTS-EXCHANGERATETYPE, sy-vline,
  WA_IFIAPMANPMNTS-SUPPLIERBASICAUTHORIZATIONGRP, sy-vline,
  WA_IFIAPMANPMNTS-SUPPLIERFINSAUTHORIZATIONGRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFIAPMANPMNTS 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_IFIAPMANPMNTS 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_IFIAPMANPMNTS INTO WA_IFIAPMANPMNTS.


*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_IFIAPMANPMNTS-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFIAPMANPMNTS-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_IFIAPMANPMNTS_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
SUPPLIER TYPE STRING,
ACCOUNTINGDOCCREATEDBYUSER TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
KEYDATE TYPE STRING,
EXCHANGERATETYPE TYPE STRING,
SUPPLIERBASICAUTHORIZATIONGRP TYPE STRING,
SUPPLIERFINSAUTHORIZATIONGRP TYPE STRING,
AUTOMATICPAYMENTAMTINDSPCRCY TYPE STRING,
MANUALPAYMENTAMTINDSPCRCY TYPE STRING,
PAYMENTAMOUNTINDISPLAYCRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFIAPMANPMNTS_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_IFIAPMANPMNTS_STR-MANDT sy-vline 
WA_IFIAPMANPMNTS_STR-COMPANYCODE sy-vline 
WA_IFIAPMANPMNTS_STR-SUPPLIER sy-vline 
WA_IFIAPMANPMNTS_STR-ACCOUNTINGDOCCREATEDBYUSER sy-vline 
WA_IFIAPMANPMNTS_STR-TRANSACTIONCURRENCY sy-vline 
WA_IFIAPMANPMNTS_STR-COMPANYCODECURRENCY sy-vline 
WA_IFIAPMANPMNTS_STR-DISPLAYCURRENCY sy-vline 
WA_IFIAPMANPMNTS_STR-KEYDATE sy-vline 
WA_IFIAPMANPMNTS_STR-EXCHANGERATETYPE sy-vline 
WA_IFIAPMANPMNTS_STR-SUPPLIERBASICAUTHORIZATIONGRP sy-vline 
WA_IFIAPMANPMNTS_STR-SUPPLIERFINSAUTHORIZATIONGRP sy-vline 
WA_IFIAPMANPMNTS_STR-AUTOMATICPAYMENTAMTINDSPCRCY sy-vline 
WA_IFIAPMANPMNTS_STR-MANUALPAYMENTAMTINDSPCRCY sy-vline 
WA_IFIAPMANPMNTS_STR-PAYMENTAMOUNTINDISPLAYCRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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