ABAP Select data from SAP table PPOICLSL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPOICLSL
*  INTO TABLE @DATA(IT_PPOICLSL2).
*--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_PPOICLSL INDEX 1 INTO DATA(WA_PPOICLSL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPOICLSL>-MANDT = 1.
<PPOICLSL>-PURCHASEORDER = 1.
<PPOICLSL>-PURCHASEORDERITEM = 1.
<PPOICLSL>-SCHEDULELINE = 1.
<PPOICLSL>-PURGDOCMIGRTNISCMPLTDFORANLYTS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPOICLSL-ACCOUNTASSIGNMENTCATEGORY, sy-vline,
  WA_PPOICLSL-SCHEDULELINEORDERQUANTITY, sy-vline,
  WA_PPOICLSL-PURCHASEORDERQUANTITYUNIT, sy-vline,
  WA_PPOICLSL-SCHEDLINESTSCDELIVERYDATE, sy-vline,
  WA_PPOICLSL-LASTPOSTINGDATE, sy-vline,
  WA_PPOICLSL-EXPECTEDNOOFDAYS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPOICLSL 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_PPOICLSL 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_PPOICLSL INTO WA_PPOICLSL.


*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 PURCHASEORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPOICLSL-PURCHASEORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPOICLSL-PURCHASEORDER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPOICLSL-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPOICLSL-SUPPLIER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PPOICLSL-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPOICLSL-MATERIAL.
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_PPOICLSL_STR, 
MANDT TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
SCHEDULELINE TYPE STRING,
PURGDOCMIGRTNISCMPLTDFORANLYTS TYPE STRING,
ACCOUNTASSIGNMENTCATEGORY TYPE STRING,
SCHEDULELINEORDERQUANTITY TYPE STRING,
PURCHASEORDERQUANTITYUNIT TYPE STRING,
SCHEDLINESTSCDELIVERYDATE TYPE STRING,
LASTPOSTINGDATE TYPE STRING,
EXPECTEDNOOFDAYS TYPE STRING,
ACTUALNOOFDAYS TYPE STRING,
DELAYINNOOFDAYS TYPE STRING,
PURCHASEORDERDATE TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLYINGPLANT TYPE STRING,
POINCOTERMSCLASSIFICATION TYPE STRING,
POINCOTERMSTRANSFERLOCATION TYPE STRING,
POINCOTERMSLOCATION1 TYPE STRING,
POINCOTERMSLOCATION2 TYPE STRING,
ORDERQUANTITY TYPE STRING,
PLANT TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIAL TYPE STRING,
ITEMINCOTERMSCLASSIFICATION TYPE STRING,
ITEMINCOTERMSTRANSFERLOCATION TYPE STRING,
ITEMINCOTERMSLOCATION1 TYPE STRING,
ITEMINCOTERMSLOCATION2 TYPE STRING,
YEARWEEK TYPE STRING,
YEARMONTH TYPE STRING,
CALENDARWEEK TYPE STRING,
CALENDARMONTH TYPE STRING,
CALENDARYEAR TYPE STRING,
PREVIOUSWEEKDATE TYPE STRING,
PREVIOUSMONTHDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPOICLSL_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_PPOICLSL_STR-MANDT sy-vline 
WA_PPOICLSL_STR-PURCHASEORDER sy-vline 
WA_PPOICLSL_STR-PURCHASEORDERITEM sy-vline 
WA_PPOICLSL_STR-SCHEDULELINE sy-vline 
WA_PPOICLSL_STR-PURGDOCMIGRTNISCMPLTDFORANLYTS sy-vline 
WA_PPOICLSL_STR-ACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_PPOICLSL_STR-SCHEDULELINEORDERQUANTITY sy-vline 
WA_PPOICLSL_STR-PURCHASEORDERQUANTITYUNIT sy-vline 
WA_PPOICLSL_STR-SCHEDLINESTSCDELIVERYDATE sy-vline 
WA_PPOICLSL_STR-LASTPOSTINGDATE sy-vline 
WA_PPOICLSL_STR-EXPECTEDNOOFDAYS sy-vline 
WA_PPOICLSL_STR-ACTUALNOOFDAYS sy-vline 
WA_PPOICLSL_STR-DELAYINNOOFDAYS sy-vline 
WA_PPOICLSL_STR-PURCHASEORDERDATE sy-vline 
WA_PPOICLSL_STR-SUPPLIER sy-vline 
WA_PPOICLSL_STR-SUPPLYINGPLANT sy-vline 
WA_PPOICLSL_STR-POINCOTERMSCLASSIFICATION sy-vline 
WA_PPOICLSL_STR-POINCOTERMSTRANSFERLOCATION sy-vline 
WA_PPOICLSL_STR-POINCOTERMSLOCATION1 sy-vline 
WA_PPOICLSL_STR-POINCOTERMSLOCATION2 sy-vline 
WA_PPOICLSL_STR-ORDERQUANTITY sy-vline 
WA_PPOICLSL_STR-PLANT sy-vline 
WA_PPOICLSL_STR-MATERIALGROUP sy-vline 
WA_PPOICLSL_STR-MATERIAL sy-vline 
WA_PPOICLSL_STR-ITEMINCOTERMSCLASSIFICATION sy-vline 
WA_PPOICLSL_STR-ITEMINCOTERMSTRANSFERLOCATION sy-vline 
WA_PPOICLSL_STR-ITEMINCOTERMSLOCATION1 sy-vline 
WA_PPOICLSL_STR-ITEMINCOTERMSLOCATION2 sy-vline 
WA_PPOICLSL_STR-YEARWEEK sy-vline 
WA_PPOICLSL_STR-YEARMONTH sy-vline 
WA_PPOICLSL_STR-CALENDARWEEK sy-vline 
WA_PPOICLSL_STR-CALENDARMONTH sy-vline 
WA_PPOICLSL_STR-CALENDARYEAR sy-vline 
WA_PPOICLSL_STR-PREVIOUSWEEKDATE sy-vline 
WA_PPOICLSL_STR-PREVIOUSMONTHDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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