ABAP Select data from SAP table IMMQTNSCHEDULELN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMMQTNSCHEDULELN
*  INTO TABLE @DATA(IT_IMMQTNSCHEDULELN2).
*--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_IMMQTNSCHEDULELN INDEX 1 INTO DATA(WA_IMMQTNSCHEDULELN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMMQTNSCHEDULELN>-MANDT = 1.
<IMMQTNSCHEDULELN>-SUPPLIERQUOTATION = 1.
<IMMQTNSCHEDULELN>-SUPPLIERQUOTATIONITEM = 1.
<IMMQTNSCHEDULELN>-SCHEDULELINE = 1.
<IMMQTNSCHEDULELN>-DELIVDATECATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMMQTNSCHEDULELN-SCHEDULELINEDELIVERYDATE, sy-vline,
  WA_IMMQTNSCHEDULELN-SCHEDLINESTSCDELIVERYDATE, sy-vline,
  WA_IMMQTNSCHEDULELN-SCHEDULELINEDELIVERYTIME, sy-vline,
  WA_IMMQTNSCHEDULELN-SCHEDULELINEORDERQUANTITY, sy-vline,
  WA_IMMQTNSCHEDULELN-ROUGHGOODSRECEIPTQTY, sy-vline,
  WA_IMMQTNSCHEDULELN-AWARDEDQUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMMQTNSCHEDULELN 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_IMMQTNSCHEDULELN 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_IMMQTNSCHEDULELN INTO WA_IMMQTNSCHEDULELN.


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

*Conversion exit CUNIT, internal->external for field ORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IMMQTNSCHEDULELN-ORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMMQTNSCHEDULELN-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_IMMQTNSCHEDULELN_STR, 
MANDT TYPE STRING,
SUPPLIERQUOTATION TYPE STRING,
SUPPLIERQUOTATIONITEM TYPE STRING,
SCHEDULELINE TYPE STRING,
DELIVDATECATEGORY TYPE STRING,
SCHEDULELINEDELIVERYDATE TYPE STRING,
SCHEDLINESTSCDELIVERYDATE TYPE STRING,
SCHEDULELINEDELIVERYTIME TYPE STRING,
SCHEDULELINEORDERQUANTITY TYPE STRING,
ROUGHGOODSRECEIPTQTY TYPE STRING,
AWARDEDQUANTITY TYPE STRING,
PERFORMANCEPERIODSTARTDATE TYPE STRING,
PERFORMANCEPERIODENDDATE TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMMQTNSCHEDULELN_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_IMMQTNSCHEDULELN_STR-MANDT sy-vline 
WA_IMMQTNSCHEDULELN_STR-SUPPLIERQUOTATION sy-vline 
WA_IMMQTNSCHEDULELN_STR-SUPPLIERQUOTATIONITEM sy-vline 
WA_IMMQTNSCHEDULELN_STR-SCHEDULELINE sy-vline 
WA_IMMQTNSCHEDULELN_STR-DELIVDATECATEGORY sy-vline 
WA_IMMQTNSCHEDULELN_STR-SCHEDULELINEDELIVERYDATE sy-vline 
WA_IMMQTNSCHEDULELN_STR-SCHEDLINESTSCDELIVERYDATE sy-vline 
WA_IMMQTNSCHEDULELN_STR-SCHEDULELINEDELIVERYTIME sy-vline 
WA_IMMQTNSCHEDULELN_STR-SCHEDULELINEORDERQUANTITY sy-vline 
WA_IMMQTNSCHEDULELN_STR-ROUGHGOODSRECEIPTQTY sy-vline 
WA_IMMQTNSCHEDULELN_STR-AWARDEDQUANTITY sy-vline 
WA_IMMQTNSCHEDULELN_STR-PERFORMANCEPERIODSTARTDATE sy-vline 
WA_IMMQTNSCHEDULELN_STR-PERFORMANCEPERIODENDDATE sy-vline 
WA_IMMQTNSCHEDULELN_STR-ORDERQUANTITYUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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