ABAP Select data from SAP table ISPREPAYMENTPOSTINGMESSAGESTP into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISPREPAYMENTPOSTINGMESSAGESTP
*  INTO TABLE @DATA(IT_ISPREPAYMENTPOSTINGMESSAGESTP2).
*--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_ISPREPAYMENTPOSTINGMESSAGESTP INDEX 1 INTO DATA(WA_ISPREPAYMENTPOSTINGMESSAGESTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISPREPAYMENTPOSTINGMESSAGESTP>-KEY = 1.
<ISPREPAYMENTPOSTINGMESSAGESTP>-PARENT_KEY = 1.
<ISPREPAYMENTPOSTINGMESSAGESTP>-ROOT_KEY = 1.
<ISPREPAYMENTPOSTINGMESSAGESTP>-PREPAYMENTAGREEMENT = 1.
<ISPREPAYMENTPOSTINGMESSAGESTP>-SYSTEMMESSAGETYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISPREPAYMENTPOSTINGMESSAGESTP-SYSTEMMESSAGEIDENTIFICATION, sy-vline,
  WA_ISPREPAYMENTPOSTINGMESSAGESTP-SYSTEMMESSAGENUMBER, sy-vline,
  WA_ISPREPAYMENTPOSTINGMESSAGESTP-SYSTEMMESSAGETEXT, sy-vline,
  WA_ISPREPAYMENTPOSTINGMESSAGESTP-SYSTEMMESSAGEVARIABLE1, sy-vline,
  WA_ISPREPAYMENTPOSTINGMESSAGESTP-SYSTEMMESSAGEVARIABLE2, sy-vline,
  WA_ISPREPAYMENTPOSTINGMESSAGESTP-SYSTEMMESSAGEVARIABLE3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISPREPAYMENTPOSTINGMESSAGESTP 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_ISPREPAYMENTPOSTINGMESSAGESTP 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_ISPREPAYMENTPOSTINGMESSAGESTP INTO WA_ISPREPAYMENTPOSTINGMESSAGESTP.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_ISPREPAYMENTPOSTINGMESSAGESTP_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
PREPAYMENTAGREEMENT TYPE STRING,
SYSTEMMESSAGETYPE TYPE STRING,
SYSTEMMESSAGEIDENTIFICATION TYPE STRING,
SYSTEMMESSAGENUMBER TYPE STRING,
SYSTEMMESSAGETEXT TYPE STRING,
SYSTEMMESSAGEVARIABLE1 TYPE STRING,
SYSTEMMESSAGEVARIABLE2 TYPE STRING,
SYSTEMMESSAGEVARIABLE3 TYPE STRING,
SYSTEMMESSAGEVARIABLE4 TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
ACTIVEUUID TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
ISACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISPREPAYMENTPOSTINGMESSAGESTP_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_ISPREPAYMENTPOSTINGMESSAGESTP_STR-KEY sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-PARENT_KEY sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-ROOT_KEY sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-PREPAYMENTAGREEMENT sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-SYSTEMMESSAGETYPE sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-SYSTEMMESSAGEIDENTIFICATION sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-SYSTEMMESSAGENUMBER sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-SYSTEMMESSAGETEXT sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-SYSTEMMESSAGEVARIABLE1 sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-SYSTEMMESSAGEVARIABLE2 sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-SYSTEMMESSAGEVARIABLE3 sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-SYSTEMMESSAGEVARIABLE4 sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-CREATEDBYUSER sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-CREATIONDATETIME sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-LASTCHANGEDBYUSER sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-LASTCHANGEDATETIME sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-ACTIVEUUID sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-HASACTIVEENTITY sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISPREPAYMENTPOSTINGMESSAGESTP_STR-ISACTIVEENTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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