ABAP Select data from SAP table IPPMTPTPM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPPMTPTPM
*  INTO TABLE @DATA(IT_IPPMTPTPM2).
*--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_IPPMTPTPM INDEX 1 INTO DATA(WA_IPPMTPTPM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPPMTPTPM>-MANDT = 1.
<IPPMTPTPM>-PREPAYMENTREQUESTUUID = 1.
<IPPMTPTPM>-SAPBUSINESSOBJECTTYPECODE = 1.
<IPPMTPTPM>-PREPAYMENTREQUESTDOCNUMBER = 1.
<IPPMTPTPM>-PREPAYMENTREQUESTDOCITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPPMTPTPM-PREPAYMENTSERIALNUMBER, sy-vline,
  WA_IPPMTPTPM-CUSTOMERPAYMENTTERMS, sy-vline,
  WA_IPPMTPTPM-PREPAYMENTREQUESTDATE, sy-vline,
  WA_IPPMTPTPM-PREPAYMENTREQUESTISMADE, sy-vline,
  WA_IPPMTPTPM-PREPAYMENTREQUESTTYPE, sy-vline,
  WA_IPPMTPTPM-PREPAYMENTREQUESTAMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPPMTPTPM 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_IPPMTPTPM 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_IPPMTPTPM INTO WA_IPPMTPTPM.


*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 PREPAYMENTREQUESTDOCNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPPMTPTPM-PREPAYMENTREQUESTDOCNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPPMTPTPM-PREPAYMENTREQUESTDOCNUMBER.
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_IPPMTPTPM_STR, 
MANDT TYPE STRING,
PREPAYMENTREQUESTUUID TYPE STRING,
SAPBUSINESSOBJECTTYPECODE TYPE STRING,
PREPAYMENTREQUESTDOCNUMBER TYPE STRING,
PREPAYMENTREQUESTDOCITEM TYPE STRING,
PREPAYMENTSERIALNUMBER TYPE STRING,
CUSTOMERPAYMENTTERMS TYPE STRING,
PREPAYMENTREQUESTDATE TYPE STRING,
PREPAYMENTREQUESTISMADE TYPE STRING,
PREPAYMENTREQUESTTYPE TYPE STRING,
PREPAYMENTREQUESTAMOUNT TYPE STRING,
PREPAYMENTREQUESTCURRENCY TYPE STRING,
PREPAYMENTAGREEMENT TYPE STRING,
PREPAYMENTREQPOSTINGSTATUS TYPE STRING,
PREPAYMENTPOSTEDDOCUMENT TYPE STRING,
SETTLEMENTPOSTINGDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPPMTPTPM_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_IPPMTPTPM_STR-MANDT sy-vline 
WA_IPPMTPTPM_STR-PREPAYMENTREQUESTUUID sy-vline 
WA_IPPMTPTPM_STR-SAPBUSINESSOBJECTTYPECODE sy-vline 
WA_IPPMTPTPM_STR-PREPAYMENTREQUESTDOCNUMBER sy-vline 
WA_IPPMTPTPM_STR-PREPAYMENTREQUESTDOCITEM sy-vline 
WA_IPPMTPTPM_STR-PREPAYMENTSERIALNUMBER sy-vline 
WA_IPPMTPTPM_STR-CUSTOMERPAYMENTTERMS sy-vline 
WA_IPPMTPTPM_STR-PREPAYMENTREQUESTDATE sy-vline 
WA_IPPMTPTPM_STR-PREPAYMENTREQUESTISMADE sy-vline 
WA_IPPMTPTPM_STR-PREPAYMENTREQUESTTYPE sy-vline 
WA_IPPMTPTPM_STR-PREPAYMENTREQUESTAMOUNT sy-vline 
WA_IPPMTPTPM_STR-PREPAYMENTREQUESTCURRENCY sy-vline 
WA_IPPMTPTPM_STR-PREPAYMENTAGREEMENT sy-vline 
WA_IPPMTPTPM_STR-PREPAYMENTREQPOSTINGSTATUS sy-vline 
WA_IPPMTPTPM_STR-PREPAYMENTPOSTEDDOCUMENT sy-vline 
WA_IPPMTPTPM_STR-SETTLEMENTPOSTINGDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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