ABAP Select data from SAP table ISLSORDGNRCAG into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISLSORDGNRCAG
*  INTO TABLE @DATA(IT_ISLSORDGNRCAG2).
*--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_ISLSORDGNRCAG INDEX 1 INTO DATA(WA_ISLSORDGNRCAG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISLSORDGNRCAG>-MANDT = 1.
<ISLSORDGNRCAG>-SALESDOCUMENT = 1.
<ISLSORDGNRCAG>-SALESDOCUMENTITEM = 1.
<ISLSORDGNRCAG>-REQUESTEDQUANTITY = 1.
<ISLSORDGNRCAG>-CONFDORDERQTYBYMATLAVAILCHECK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISLSORDGNRCAG-DELIVEREDQUANTITYINBASEUNIT, sy-vline,
  WA_ISLSORDGNRCAG-REQUESTEDRQMTQTYINBASEUNIT, sy-vline,
  WA_ISLSORDGNRCAG-CONFIRMEDRQMTQTYINBASEUNIT, sy-vline,
  WA_ISLSORDGNRCAG-PURCHASEREQUISITION, sy-vline,
  WA_ISLSORDGNRCAG-REQUESTEDDELIVERYDATE, sy-vline,
  WA_ISLSORDGNRCAG-CONTRACTITEMCONSUMEDQUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISLSORDGNRCAG 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_ISLSORDGNRCAG 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_ISLSORDGNRCAG INTO WA_ISLSORDGNRCAG.


*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 SALESDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISLSORDGNRCAG-SALESDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISLSORDGNRCAG-SALESDOCUMENT.
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_ISLSORDGNRCAG_STR, 
MANDT TYPE STRING,
SALESDOCUMENT TYPE STRING,
SALESDOCUMENTITEM TYPE STRING,
REQUESTEDQUANTITY TYPE STRING,
CONFDORDERQTYBYMATLAVAILCHECK TYPE STRING,
DELIVEREDQUANTITYINBASEUNIT TYPE STRING,
REQUESTEDRQMTQTYINBASEUNIT TYPE STRING,
CONFIRMEDRQMTQTYINBASEUNIT TYPE STRING,
PURCHASEREQUISITION TYPE STRING,
REQUESTEDDELIVERYDATE TYPE STRING,
CONTRACTITEMCONSUMEDQUANTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISLSORDGNRCAG_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_ISLSORDGNRCAG_STR-MANDT sy-vline 
WA_ISLSORDGNRCAG_STR-SALESDOCUMENT sy-vline 
WA_ISLSORDGNRCAG_STR-SALESDOCUMENTITEM sy-vline 
WA_ISLSORDGNRCAG_STR-REQUESTEDQUANTITY sy-vline 
WA_ISLSORDGNRCAG_STR-CONFDORDERQTYBYMATLAVAILCHECK sy-vline 
WA_ISLSORDGNRCAG_STR-DELIVEREDQUANTITYINBASEUNIT sy-vline 
WA_ISLSORDGNRCAG_STR-REQUESTEDRQMTQTYINBASEUNIT sy-vline 
WA_ISLSORDGNRCAG_STR-CONFIRMEDRQMTQTYINBASEUNIT sy-vline 
WA_ISLSORDGNRCAG_STR-PURCHASEREQUISITION sy-vline 
WA_ISLSORDGNRCAG_STR-REQUESTEDDELIVERYDATE sy-vline 
WA_ISLSORDGNRCAG_STR-CONTRACTITEMCONSUMEDQUANTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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