ABAP Select data from SAP table PSCHAGSCHEDLINE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSCHAGSCHEDLINE
*  INTO TABLE @DATA(IT_PSCHAGSCHEDLINE2).
*--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_PSCHAGSCHEDLINE INDEX 1 INTO DATA(WA_PSCHAGSCHEDLINE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSCHAGSCHEDLINE>-MANDT = 1.
<PSCHAGSCHEDLINE>-SCHEDULINGAGREEMENT = 1.
<PSCHAGSCHEDLINE>-SCHEDULINGAGREEMENTITEM = 1.
<PSCHAGSCHEDLINE>-SCHEDULELINE = 1.
<PSCHAGSCHEDLINE>-SUPPLIER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSCHAGSCHEDLINE-PURCHASINGORGANIZATION, sy-vline,
  WA_PSCHAGSCHEDLINE-PURCHASINGGROUP, sy-vline,
  WA_PSCHAGSCHEDLINE-PURCHASINGDOCUMENTORDERDATE, sy-vline,
  WA_PSCHAGSCHEDLINE-DOCUMENTCURRENCY, sy-vline,
  WA_PSCHAGSCHEDLINE-VALIDITYSTARTDATE, sy-vline,
  WA_PSCHAGSCHEDLINE-VALIDITYENDDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSCHAGSCHEDLINE 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_PSCHAGSCHEDLINE 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_PSCHAGSCHEDLINE INTO WA_PSCHAGSCHEDLINE.


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

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

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

*Conversion exit CUNIT, internal->external for field ORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PSCHAGSCHEDLINE-ORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSCHAGSCHEDLINE-ORDERQUANTITYUNIT.
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_PSCHAGSCHEDLINE_STR, 
MANDT TYPE STRING,
SCHEDULINGAGREEMENT TYPE STRING,
SCHEDULINGAGREEMENTITEM TYPE STRING,
SCHEDULELINE TYPE STRING,
SUPPLIER TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGDOCUMENTORDERDATE TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
PURCHASINGDOCUMENTTYPE TYPE STRING,
COMPANYCODE TYPE STRING,
PLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
MATERIALGROUP TYPE STRING,
MATERIAL TYPE STRING,
NETPRICEAMOUNT TYPE STRING,
NETPRICEQUANTITY TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
ORDERPRICEUNITTOORDERUNITNMRTR TYPE STRING,
ORDPRICEUNITTOORDERUNITDNMNTR TYPE STRING,
PRODUCTTYPE TYPE STRING,
MATERIALTYPE TYPE STRING,
ACCOUNTASSIGNMENTCATEGORY TYPE STRING,
MULTIPLEACCTASSGMTDISTRIBUTION TYPE STRING,
PARTIALINVOICEDISTRIBUTION TYPE STRING,
TARGETQUANTITY TYPE STRING,
SCHEDULELINEDELIVERYDATE TYPE STRING,
NETPRICEQUANTITYINORDUNIT TYPE STRING,
NETPRICEAMOUNTINDSPCRCY TYPE STRING,
SCHEDULELINEORDERQUANTITY TYPE STRING,
SCHEDULELINEEXPECTEDQUANTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSCHAGSCHEDLINE_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_PSCHAGSCHEDLINE_STR-MANDT sy-vline 
WA_PSCHAGSCHEDLINE_STR-SCHEDULINGAGREEMENT sy-vline 
WA_PSCHAGSCHEDLINE_STR-SCHEDULINGAGREEMENTITEM sy-vline 
WA_PSCHAGSCHEDLINE_STR-SCHEDULELINE sy-vline 
WA_PSCHAGSCHEDLINE_STR-SUPPLIER sy-vline 
WA_PSCHAGSCHEDLINE_STR-PURCHASINGORGANIZATION sy-vline 
WA_PSCHAGSCHEDLINE_STR-PURCHASINGGROUP sy-vline 
WA_PSCHAGSCHEDLINE_STR-PURCHASINGDOCUMENTORDERDATE sy-vline 
WA_PSCHAGSCHEDLINE_STR-DOCUMENTCURRENCY sy-vline 
WA_PSCHAGSCHEDLINE_STR-VALIDITYSTARTDATE sy-vline 
WA_PSCHAGSCHEDLINE_STR-VALIDITYENDDATE sy-vline 
WA_PSCHAGSCHEDLINE_STR-PURCHASINGDOCUMENTTYPE sy-vline 
WA_PSCHAGSCHEDLINE_STR-COMPANYCODE sy-vline 
WA_PSCHAGSCHEDLINE_STR-PLANT sy-vline 
WA_PSCHAGSCHEDLINE_STR-STORAGELOCATION sy-vline 
WA_PSCHAGSCHEDLINE_STR-MATERIALGROUP sy-vline 
WA_PSCHAGSCHEDLINE_STR-MATERIAL sy-vline 
WA_PSCHAGSCHEDLINE_STR-NETPRICEAMOUNT sy-vline 
WA_PSCHAGSCHEDLINE_STR-NETPRICEQUANTITY sy-vline 
WA_PSCHAGSCHEDLINE_STR-ORDERQUANTITYUNIT sy-vline 
WA_PSCHAGSCHEDLINE_STR-ORDERPRICEUNITTOORDERUNITNMRTR sy-vline 
WA_PSCHAGSCHEDLINE_STR-ORDPRICEUNITTOORDERUNITDNMNTR sy-vline 
WA_PSCHAGSCHEDLINE_STR-PRODUCTTYPE sy-vline 
WA_PSCHAGSCHEDLINE_STR-MATERIALTYPE sy-vline 
WA_PSCHAGSCHEDLINE_STR-ACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_PSCHAGSCHEDLINE_STR-MULTIPLEACCTASSGMTDISTRIBUTION sy-vline 
WA_PSCHAGSCHEDLINE_STR-PARTIALINVOICEDISTRIBUTION sy-vline 
WA_PSCHAGSCHEDLINE_STR-TARGETQUANTITY sy-vline 
WA_PSCHAGSCHEDLINE_STR-SCHEDULELINEDELIVERYDATE sy-vline 
WA_PSCHAGSCHEDLINE_STR-NETPRICEQUANTITYINORDUNIT sy-vline 
WA_PSCHAGSCHEDLINE_STR-NETPRICEAMOUNTINDSPCRCY sy-vline 
WA_PSCHAGSCHEDLINE_STR-SCHEDULELINEORDERQUANTITY sy-vline 
WA_PSCHAGSCHEDLINE_STR-SCHEDULELINEEXPECTEDQUANTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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