ABAP Select data from SAP table ATP_BOP_SEG_SMSL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ATP_BOP_SEG_SMSL
*  INTO TABLE @DATA(IT_ATP_BOP_SEG_SMSL2).
*--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_ATP_BOP_SEG_SMSL INDEX 1 INTO DATA(WA_ATP_BOP_SEG_SMSL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ATP_BOP_SEG_SMSL>-MANDT = 1.
<ATP_BOP_SEG_SMSL>-ABOPSEGMENTSIMLNSCHEDLINEUUID = 1.
<ATP_BOP_SEG_SMSL>-ABOPSEGMENTSIMULATIONUUID = 1.
<ATP_BOP_SEG_SMSL>-ABOPSEGMENTUUID = 1.
<ATP_BOP_SEG_SMSL>-ATPRELEVANTDOCUMENTCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ATP_BOP_SEG_SMSL-ATPRELEVANTDOCUMENT, sy-vline,
  WA_ATP_BOP_SEG_SMSL-ATPRELEVANTDOCUMENTITEM, sy-vline,
  WA_ATP_BOP_SEG_SMSL-ATPRELEVANTDOCSCHEDULELINE, sy-vline,
  WA_ATP_BOP_SEG_SMSL-SELECTIONSEQUENCEPOSITION, sy-vline,
  WA_ATP_BOP_SEG_SMSL-PRODUCT, sy-vline,
  WA_ATP_BOP_SEG_SMSL-SUPPLYINGPLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ATP_BOP_SEG_SMSL 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_ATP_BOP_SEG_SMSL 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_ATP_BOP_SEG_SMSL INTO WA_ATP_BOP_SEG_SMSL.


*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 MATN1, internal->external for field PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ATP_BOP_SEG_SMSL-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ATP_BOP_SEG_SMSL-PRODUCT.
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_ATP_BOP_SEG_SMSL_STR, 
MANDT TYPE STRING,
ABOPSEGMENTSIMLNSCHEDLINEUUID TYPE STRING,
ABOPSEGMENTSIMULATIONUUID TYPE STRING,
ABOPSEGMENTUUID TYPE STRING,
ATPRELEVANTDOCUMENTCATEGORY TYPE STRING,
ATPRELEVANTDOCUMENT TYPE STRING,
ATPRELEVANTDOCUMENTITEM TYPE STRING,
ATPRELEVANTDOCSCHEDULELINE TYPE STRING,
SELECTIONSEQUENCEPOSITION TYPE STRING,
PRODUCT TYPE STRING,
SUPPLYINGPLANT TYPE STRING,
RECIPIENT TYPE STRING,
SCHEDLINEISPRODAVAILYCHECKRLVT TYPE STRING,
SCHEDLINEISPRODALLOCATIONRLVT TYPE STRING,
SCHEDLINEISSUPPLYASSGMTRLVT TYPE STRING,
SCHEDULELINEISSELECTED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ATP_BOP_SEG_SMSL_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_ATP_BOP_SEG_SMSL_STR-MANDT sy-vline 
WA_ATP_BOP_SEG_SMSL_STR-ABOPSEGMENTSIMLNSCHEDLINEUUID sy-vline 
WA_ATP_BOP_SEG_SMSL_STR-ABOPSEGMENTSIMULATIONUUID sy-vline 
WA_ATP_BOP_SEG_SMSL_STR-ABOPSEGMENTUUID sy-vline 
WA_ATP_BOP_SEG_SMSL_STR-ATPRELEVANTDOCUMENTCATEGORY sy-vline 
WA_ATP_BOP_SEG_SMSL_STR-ATPRELEVANTDOCUMENT sy-vline 
WA_ATP_BOP_SEG_SMSL_STR-ATPRELEVANTDOCUMENTITEM sy-vline 
WA_ATP_BOP_SEG_SMSL_STR-ATPRELEVANTDOCSCHEDULELINE sy-vline 
WA_ATP_BOP_SEG_SMSL_STR-SELECTIONSEQUENCEPOSITION sy-vline 
WA_ATP_BOP_SEG_SMSL_STR-PRODUCT sy-vline 
WA_ATP_BOP_SEG_SMSL_STR-SUPPLYINGPLANT sy-vline 
WA_ATP_BOP_SEG_SMSL_STR-RECIPIENT sy-vline 
WA_ATP_BOP_SEG_SMSL_STR-SCHEDLINEISPRODAVAILYCHECKRLVT sy-vline 
WA_ATP_BOP_SEG_SMSL_STR-SCHEDLINEISPRODALLOCATIONRLVT sy-vline 
WA_ATP_BOP_SEG_SMSL_STR-SCHEDLINEISSUPPLYASSGMTRLVT sy-vline 
WA_ATP_BOP_SEG_SMSL_STR-SCHEDULELINEISSELECTED sy-vline      INTO ld_text SEPARATED BY SPACE.

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