ABAP Select data from SAP table CSSAOPITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSSAOPITEM
*  INTO TABLE @DATA(IT_CSSAOPITEM2).
*--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_CSSAOPITEM INDEX 1 INTO DATA(WA_CSSAOPITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSSAOPITEM>-MANDT = 1.
<CSSAOPITEM>-SALESSCHEDULINGAGREEMENT = 1.
<CSSAOPITEM>-SALESSCHEDULINGAGREEMENTITEM = 1.
<CSSAOPITEM>-MATERIAL = 1.
<CSSAOPITEM>-PRODUCTDESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSSAOPITEM-SALESSCHEDGAGRMTITEMCATEGORY, sy-vline,
  WA_CSSAOPITEM-SDPROCESSSTATUS, sy-vline,
  WA_CSSAOPITEM-NETAMOUNT, sy-vline,
  WA_CSSAOPITEM-MATERIALBYCUSTOMER, sy-vline,
  WA_CSSAOPITEM-BATCH, sy-vline,
  WA_CSSAOPITEM-MATERIALGROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSSAOPITEM 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_CSSAOPITEM 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_CSSAOPITEM INTO WA_CSSAOPITEM.


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

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

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

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

*Conversion exit ALPHA, internal->external for field SHIPTOPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSSAOPITEM-SHIPTOPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSSAOPITEM-SHIPTOPARTY.
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_CSSAOPITEM_STR, 
MANDT TYPE STRING,
SALESSCHEDULINGAGREEMENT TYPE STRING,
SALESSCHEDULINGAGREEMENTITEM TYPE STRING,
MATERIAL TYPE STRING,
PRODUCTDESCRIPTION TYPE STRING,
SALESSCHEDGAGRMTITEMCATEGORY TYPE STRING,
SDPROCESSSTATUS TYPE STRING,
NETAMOUNT TYPE STRING,
MATERIALBYCUSTOMER TYPE STRING,
BATCH TYPE STRING,
MATERIALGROUP TYPE STRING,
PLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
SHIPPINGPOINT TYPE STRING,
ROUTE TYPE STRING,
DELIVERYSTATUS TYPE STRING,
SDDOCUMENTREJECTIONSTATUS TYPE STRING,
SALESDOCUMENTRJCNREASON TYPE STRING,
ORDERQUANTITY TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
SALESSCHEDGAGRMTITEMTEXT TYPE STRING,
SOLDTOPARTY TYPE STRING,
SHIPTOPARTY TYPE STRING,
FULLNAME TYPE STRING,
PLNGDELIVSCHEDINSTRN TYPE STRING,
PLNGDELIVSCHEDINSTRNTEXT TYPE STRING,
ISVALID TYPE STRING,
JITDELIVERYSCHEDULE TYPE STRING,
FORECASTDELIVERYSCHEDULE TYPE STRING,
PLANNINGDELIVERYSCHEDULE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSSAOPITEM_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_CSSAOPITEM_STR-MANDT sy-vline 
WA_CSSAOPITEM_STR-SALESSCHEDULINGAGREEMENT sy-vline 
WA_CSSAOPITEM_STR-SALESSCHEDULINGAGREEMENTITEM sy-vline 
WA_CSSAOPITEM_STR-MATERIAL sy-vline 
WA_CSSAOPITEM_STR-PRODUCTDESCRIPTION sy-vline 
WA_CSSAOPITEM_STR-SALESSCHEDGAGRMTITEMCATEGORY sy-vline 
WA_CSSAOPITEM_STR-SDPROCESSSTATUS sy-vline 
WA_CSSAOPITEM_STR-NETAMOUNT sy-vline 
WA_CSSAOPITEM_STR-MATERIALBYCUSTOMER sy-vline 
WA_CSSAOPITEM_STR-BATCH sy-vline 
WA_CSSAOPITEM_STR-MATERIALGROUP sy-vline 
WA_CSSAOPITEM_STR-PLANT sy-vline 
WA_CSSAOPITEM_STR-STORAGELOCATION sy-vline 
WA_CSSAOPITEM_STR-SHIPPINGPOINT sy-vline 
WA_CSSAOPITEM_STR-ROUTE sy-vline 
WA_CSSAOPITEM_STR-DELIVERYSTATUS sy-vline 
WA_CSSAOPITEM_STR-SDDOCUMENTREJECTIONSTATUS sy-vline 
WA_CSSAOPITEM_STR-SALESDOCUMENTRJCNREASON sy-vline 
WA_CSSAOPITEM_STR-ORDERQUANTITY sy-vline 
WA_CSSAOPITEM_STR-ORDERQUANTITYUNIT sy-vline 
WA_CSSAOPITEM_STR-TRANSACTIONCURRENCY sy-vline 
WA_CSSAOPITEM_STR-SALESSCHEDGAGRMTITEMTEXT sy-vline 
WA_CSSAOPITEM_STR-SOLDTOPARTY sy-vline 
WA_CSSAOPITEM_STR-SHIPTOPARTY sy-vline 
WA_CSSAOPITEM_STR-FULLNAME sy-vline 
WA_CSSAOPITEM_STR-PLNGDELIVSCHEDINSTRN sy-vline 
WA_CSSAOPITEM_STR-PLNGDELIVSCHEDINSTRNTEXT sy-vline 
WA_CSSAOPITEM_STR-ISVALID sy-vline 
WA_CSSAOPITEM_STR-JITDELIVERYSCHEDULE sy-vline 
WA_CSSAOPITEM_STR-FORECASTDELIVERYSCHEDULE sy-vline 
WA_CSSAOPITEM_STR-PLANNINGDELIVERYSCHEDULE sy-vline      INTO ld_text SEPARATED BY SPACE.

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