ABAP Select data from SAP table PPDS_ODATA_SCH_ALERTS 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_ALERTS 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_ALERTS. 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_ALERTS 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_ALERTS TYPE STANDARD TABLE OF PPDS_ODATA_SCH_ALERTS,
      WA_PPDS_ODATA_SCH_ALERTS TYPE PPDS_ODATA_SCH_ALERTS,
      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_ALERTS> TYPE PPDS_ODATA_SCH_ALERTS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPDS_ODATA_SCH_ALERTS
*  INTO TABLE @DATA(IT_PPDS_ODATA_SCH_ALERTS2).
*--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_ALERTS INDEX 1 INTO DATA(WA_PPDS_ODATA_SCH_ALERTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPDS_ODATA_SCH_ALERTS>-ALERTOBJECTTYPE = 1.
<PPDS_ODATA_SCH_ALERTS>-ALERTTYPE = 1.
<PPDS_ODATA_SCH_ALERTS>-INPUTRESOURCENAME = 1.
<PPDS_ODATA_SCH_ALERTS>-INPUTRESOURCETEXT = 1.
<PPDS_ODATA_SCH_ALERTS>-OUTPUTRESOURCENAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPDS_ODATA_SCH_ALERTS-OUTPUTRESOURCETEXT, sy-vline,
  WA_PPDS_ODATA_SCH_ALERTS-PRODUCT, sy-vline,
  WA_PPDS_ODATA_SCH_ALERTS-PRODUCTDESCRIPTION, sy-vline,
  WA_PPDS_ODATA_SCH_ALERTS-LOCATION, sy-vline,
  WA_PPDS_ODATA_SCH_ALERTS-LOCATIONDESCRIPTION, sy-vline,
  WA_PPDS_ODATA_SCH_ALERTS-ORDERTEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPDS_ODATA_SCH_ALERTS 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_ALERTS 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_ALERTS INTO WA_PPDS_ODATA_SCH_ALERTS.


*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 MATN1, internal->external for field PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PPDS_ODATA_SCH_ALERTS-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDS_ODATA_SCH_ALERTS-PRODUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PPDS_ODATA_SCH_ALERTS-UNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDS_ODATA_SCH_ALERTS-UNITOFMEASURE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_OF_MEASURE_OUT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PPDS_ODATA_SCH_ALERTS-UNIT_OF_MEASURE_OUT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDS_ODATA_SCH_ALERTS-UNIT_OF_MEASURE_OUT.
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_ALERTS_STR, 
ALERTOBJECTTYPE TYPE STRING,
ALERTTYPE TYPE STRING,
INPUTRESOURCENAME TYPE STRING,
INPUTRESOURCETEXT TYPE STRING,
OUTPUTRESOURCENAME TYPE STRING,
OUTPUTRESOURCETEXT TYPE STRING,
PRODUCT TYPE STRING,
PRODUCTDESCRIPTION TYPE STRING,
LOCATION TYPE STRING,
LOCATIONDESCRIPTION TYPE STRING,
ORDERTEXT TYPE STRING,
REQUIREMENTSTART TYPE STRING,
REQUIREMENTEND TYPE STRING,
VARIANCEINHOURS TYPE STRING,
ACTUALQUANTITY TYPE STRING,
UNITOFMEASURE TYPE STRING,
UNIT_OF_MEASURE_OUT TYPE STRING,
TIMESPOT TYPE STRING,
DELAYINDAYS TYPE STRING,
DAYSSUPPLY TYPE STRING,
REQUESTEDDAYSSUPPLYINDAYS TYPE STRING,
VARIANCEINPERCENTAGE TYPE STRING,
DAYSSUPPLYTYPEDESCRIPTION TYPE STRING,
ORDERSCHEDULED TYPE STRING,
OPERATIONNUMBER TYPE STRING,
TARGETQUANTITY TYPE STRING,
OPERATIONNO TYPE STRING,
MODENUMBER TYPE STRING,
MODENO TYPE STRING,
TARGEINTERVALINHOURS TYPE STRING,
TIMEDIFFERENCEINHOURS TYPE STRING,
SUBOPERATIONNUMBER TYPE STRING,
SUBOPERATIONNO TYPE STRING,
PRODCAMPAIGNOBJECTNUMBER TYPE STRING,
TEXT TYPE STRING,
VERSION TYPE STRING,
ALERTID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPDS_ODATA_SCH_ALERTS_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_ALERTS_STR-ALERTOBJECTTYPE sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-ALERTTYPE sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-INPUTRESOURCENAME sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-INPUTRESOURCETEXT sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-OUTPUTRESOURCENAME sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-OUTPUTRESOURCETEXT sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-PRODUCT sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-PRODUCTDESCRIPTION sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-LOCATION sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-LOCATIONDESCRIPTION sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-ORDERTEXT sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-REQUIREMENTSTART sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-REQUIREMENTEND sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-VARIANCEINHOURS sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-ACTUALQUANTITY sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-UNITOFMEASURE sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-UNIT_OF_MEASURE_OUT sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-TIMESPOT sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-DELAYINDAYS sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-DAYSSUPPLY sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-REQUESTEDDAYSSUPPLYINDAYS sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-VARIANCEINPERCENTAGE sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-DAYSSUPPLYTYPEDESCRIPTION sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-ORDERSCHEDULED sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-OPERATIONNUMBER sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-TARGETQUANTITY sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-OPERATIONNO sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-MODENUMBER sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-MODENO sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-TARGEINTERVALINHOURS sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-TIMEDIFFERENCEINHOURS sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-SUBOPERATIONNUMBER sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-SUBOPERATIONNO sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-PRODCAMPAIGNOBJECTNUMBER sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-TEXT sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-VERSION sy-vline 
WA_PPDS_ODATA_SCH_ALERTS_STR-ALERTID sy-vline      INTO ld_text SEPARATED BY SPACE.

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