ABAP Select data from SAP table ISEASONSUNION into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISEASONSUNION
*  INTO TABLE @DATA(IT_ISEASONSUNION2).
*--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_ISEASONSUNION INDEX 1 INTO DATA(WA_ISEASONSUNION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISEASONSUNION>-MANDT = 1.
<ISEASONSUNION>-PRODUCT = 1.
<ISEASONSUNION>-CROSSPLANTCONFIGURABLEPRODUCT = 1.
<ISEASONSUNION>-PRODUCTCOLLECTION = 1.
<ISEASONSUNION>-PRODUCTSEASON = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISEASONSUNION-PRODUCTSEASONYEAR, sy-vline,
  WA_ISEASONSUNION-REQUIREMENTSEGMENT, sy-vline,
  WA_ISEASONSUNION-PRODUCTTHEME, sy-vline,
  WA_ISEASONSUNION-ISPRODUCTSEASONTYPE1, sy-vline,
  WA_ISEASONSUNION-ISPRODUCTSEASONTYPE2, sy-vline,
  WA_ISEASONSUNION-ISPRODUCTSEASONTYPE3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISEASONSUNION 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_ISEASONSUNION 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_ISEASONSUNION INTO WA_ISEASONSUNION.


*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_ISEASONSUNION-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISEASONSUNION-PRODUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field CROSSPLANTCONFIGURABLEPRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ISEASONSUNION-CROSSPLANTCONFIGURABLEPRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISEASONSUNION-CROSSPLANTCONFIGURABLEPRODUCT.
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_ISEASONSUNION_STR, 
MANDT TYPE STRING,
PRODUCT TYPE STRING,
CROSSPLANTCONFIGURABLEPRODUCT TYPE STRING,
PRODUCTCOLLECTION TYPE STRING,
PRODUCTSEASON TYPE STRING,
PRODUCTSEASONYEAR TYPE STRING,
REQUIREMENTSEGMENT TYPE STRING,
PRODUCTTHEME TYPE STRING,
ISPRODUCTSEASONTYPE1 TYPE STRING,
ISPRODUCTSEASONTYPE2 TYPE STRING,
ISPRODUCTSEASONTYPE3 TYPE STRING,
PRODUCTSEASONNAME TYPE STRING,
ISVALID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISEASONSUNION_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_ISEASONSUNION_STR-MANDT sy-vline 
WA_ISEASONSUNION_STR-PRODUCT sy-vline 
WA_ISEASONSUNION_STR-CROSSPLANTCONFIGURABLEPRODUCT sy-vline 
WA_ISEASONSUNION_STR-PRODUCTCOLLECTION sy-vline 
WA_ISEASONSUNION_STR-PRODUCTSEASON sy-vline 
WA_ISEASONSUNION_STR-PRODUCTSEASONYEAR sy-vline 
WA_ISEASONSUNION_STR-REQUIREMENTSEGMENT sy-vline 
WA_ISEASONSUNION_STR-PRODUCTTHEME sy-vline 
WA_ISEASONSUNION_STR-ISPRODUCTSEASONTYPE1 sy-vline 
WA_ISEASONSUNION_STR-ISPRODUCTSEASONTYPE2 sy-vline 
WA_ISEASONSUNION_STR-ISPRODUCTSEASONTYPE3 sy-vline 
WA_ISEASONSUNION_STR-PRODUCTSEASONNAME sy-vline 
WA_ISEASONSUNION_STR-ISVALID sy-vline      INTO ld_text SEPARATED BY SPACE.

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