ABAP Select data from SAP table PPDS_ODATA_SCH_LOGS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPDS_ODATA_SCH_LOGS
*  INTO TABLE @DATA(IT_PPDS_ODATA_SCH_LOGS2).
*--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_PPDS_ODATA_SCH_LOGS INDEX 1 INTO DATA(WA_PPDS_ODATA_SCH_LOGS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPDS_ODATA_SCH_LOGS>-USERNAME = 1.
<PPDS_ODATA_SCH_LOGS>-PLANNINGVERSIONID = 1.
<PPDS_ODATA_SCH_LOGS>-SIMULATIONSESSIONID = 1.
<PPDS_ODATA_SCH_LOGS>-TIMESTAMP = 1.
<PPDS_ODATA_SCH_LOGS>-MESSAGETYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPDS_ODATA_SCH_LOGS-MESSAGETEXT, sy-vline,
  WA_PPDS_ODATA_SCH_LOGS-PRODUCTNUMBER, sy-vline,
  WA_PPDS_ODATA_SCH_LOGS-ORDERNUMBER, sy-vline,
  WA_PPDS_ODATA_SCH_LOGS-HEURISTIC, sy-vline,
  WA_PPDS_ODATA_SCH_LOGS-EXCEPTIONGROUP, sy-vline,
  WA_PPDS_ODATA_SCH_LOGS-LOCATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPDS_ODATA_SCH_LOGS 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_PPDS_ODATA_SCH_LOGS 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_PPDS_ODATA_SCH_LOGS INTO WA_PPDS_ODATA_SCH_LOGS.


*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 VRSIO, internal->external for field PLANNINGVERSIONID
CALL FUNCTION 'CONVERSION_EXIT_VRSIO_OUTPUT'
  EXPORTING
    input =                      WA_PPDS_ODATA_SCH_LOGS-PLANNINGVERSIONID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDS_ODATA_SCH_LOGS-PLANNINGVERSIONID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field PRODUCTNUMBER
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PPDS_ODATA_SCH_LOGS-PRODUCTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDS_ODATA_SCH_LOGS-PRODUCTNUMBER.
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_PPDS_ODATA_SCH_LOGS_STR, 
USERNAME TYPE STRING,
PLANNINGVERSIONID TYPE STRING,
SIMULATIONSESSIONID TYPE STRING,
TIMESTAMP TYPE STRING,
MESSAGETYPE TYPE STRING,
MESSAGETEXT TYPE STRING,
PRODUCTNUMBER TYPE STRING,
ORDERNUMBER TYPE STRING,
HEURISTIC TYPE STRING,
EXCEPTIONGROUP TYPE STRING,
LOCATION TYPE STRING,
PRODUCTIONPLANNER TYPE STRING,
ISMASTER TYPE STRING,
VERSION TYPE STRING,
APPLICATIONLOGID TYPE STRING,
MESSAGEID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPDS_ODATA_SCH_LOGS_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_PPDS_ODATA_SCH_LOGS_STR-USERNAME sy-vline 
WA_PPDS_ODATA_SCH_LOGS_STR-PLANNINGVERSIONID sy-vline 
WA_PPDS_ODATA_SCH_LOGS_STR-SIMULATIONSESSIONID sy-vline 
WA_PPDS_ODATA_SCH_LOGS_STR-TIMESTAMP sy-vline 
WA_PPDS_ODATA_SCH_LOGS_STR-MESSAGETYPE sy-vline 
WA_PPDS_ODATA_SCH_LOGS_STR-MESSAGETEXT sy-vline 
WA_PPDS_ODATA_SCH_LOGS_STR-PRODUCTNUMBER sy-vline 
WA_PPDS_ODATA_SCH_LOGS_STR-ORDERNUMBER sy-vline 
WA_PPDS_ODATA_SCH_LOGS_STR-HEURISTIC sy-vline 
WA_PPDS_ODATA_SCH_LOGS_STR-EXCEPTIONGROUP sy-vline 
WA_PPDS_ODATA_SCH_LOGS_STR-LOCATION sy-vline 
WA_PPDS_ODATA_SCH_LOGS_STR-PRODUCTIONPLANNER sy-vline 
WA_PPDS_ODATA_SCH_LOGS_STR-ISMASTER sy-vline 
WA_PPDS_ODATA_SCH_LOGS_STR-VERSION sy-vline 
WA_PPDS_ODATA_SCH_LOGS_STR-APPLICATIONLOGID sy-vline 
WA_PPDS_ODATA_SCH_LOGS_STR-MESSAGEID sy-vline      INTO ld_text SEPARATED BY SPACE.

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