ABAP Select data from SAP table ISSCHEDULEAGMTWITHDRAFT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISSCHEDULEAGMTWITHDRAFT
*  INTO TABLE @DATA(IT_ISSCHEDULEAGMTWITHDRAFT2).
*--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_ISSCHEDULEAGMTWITHDRAFT INDEX 1 INTO DATA(WA_ISSCHEDULEAGMTWITHDRAFT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISSCHEDULEAGMTWITHDRAFT>-KEY = 1.
<ISSCHEDULEAGMTWITHDRAFT>-PARENT_KEY = 1.
<ISSCHEDULEAGMTWITHDRAFT>-ROOT_KEY = 1.
<ISSCHEDULEAGMTWITHDRAFT>-ACTIVESCHEDULEAGREEMENT = 1.
<ISSCHEDULEAGMTWITHDRAFT>-COMPANYCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISSCHEDULEAGMTWITHDRAFT-PURCHASINGDOCUMENTCATEGORY, sy-vline,
  WA_ISSCHEDULEAGMTWITHDRAFT-PURCHASINGDOCUMENTTYPE, sy-vline,
  WA_ISSCHEDULEAGMTWITHDRAFT-CREATEDBYUSER, sy-vline,
  WA_ISSCHEDULEAGMTWITHDRAFT-CREATIONDATE, sy-vline,
  WA_ISSCHEDULEAGMTWITHDRAFT-LANGUAGE, sy-vline,
  WA_ISSCHEDULEAGMTWITHDRAFT-PURCHASINGORGANIZATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISSCHEDULEAGMTWITHDRAFT 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_ISSCHEDULEAGMTWITHDRAFT 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_ISSCHEDULEAGMTWITHDRAFT INTO WA_ISSCHEDULEAGMTWITHDRAFT.


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

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ISSCHEDULEAGMTWITHDRAFT-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISSCHEDULEAGMTWITHDRAFT-LANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SCHEDULEAGREEMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISSCHEDULEAGMTWITHDRAFT-SCHEDULEAGREEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISSCHEDULEAGMTWITHDRAFT-SCHEDULEAGREEMENT.
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_ISSCHEDULEAGMTWITHDRAFT_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
ACTIVESCHEDULEAGREEMENT TYPE STRING,
COMPANYCODE TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
PURCHASINGDOCUMENTTYPE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
LANGUAGE TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
INCOTERMSCLASSIFICATION TYPE STRING,
INCOTERMSTRANSFERLOCATION TYPE STRING,
PAYMENTTERMS TYPE STRING,
CASHDISCOUNT1DAYS TYPE STRING,
CASHDISCOUNT2DAYS TYPE STRING,
CASHDISCOUNT1PERCENT TYPE STRING,
CASHDISCOUNT2PERCENT TYPE STRING,
NETPAYMENTDAYS TYPE STRING,
PURCHASINGDOCUMENTORDERDATE TYPE STRING,
SCHEDULEAGREEMENTHASRELEASEDOC TYPE STRING,
SCHEDULEAGREEMENT TYPE STRING,
HASACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISSCHEDULEAGMTWITHDRAFT_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_ISSCHEDULEAGMTWITHDRAFT_STR-KEY sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-PARENT_KEY sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-ROOT_KEY sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-ACTIVESCHEDULEAGREEMENT sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-COMPANYCODE sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-PURCHASINGDOCUMENTTYPE sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-CREATEDBYUSER sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-CREATIONDATE sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-LANGUAGE sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-PURCHASINGORGANIZATION sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-PURCHASINGGROUP sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-DOCUMENTCURRENCY sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-INCOTERMSCLASSIFICATION sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-INCOTERMSTRANSFERLOCATION sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-PAYMENTTERMS sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-CASHDISCOUNT1DAYS sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-CASHDISCOUNT2DAYS sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-CASHDISCOUNT1PERCENT sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-CASHDISCOUNT2PERCENT sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-NETPAYMENTDAYS sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-PURCHASINGDOCUMENTORDERDATE sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-SCHEDULEAGREEMENTHASRELEASEDOC sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-SCHEDULEAGREEMENT sy-vline 
WA_ISSCHEDULEAGMTWITHDRAFT_STR-HASACTIVEENTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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