ABAP Select data from SAP table ASEASONSDPERIODS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ASEASONSDPERIODS
*  INTO TABLE @DATA(IT_ASEASONSDPERIODS2).
*--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_ASEASONSDPERIODS INDEX 1 INTO DATA(WA_ASEASONSDPERIODS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ASEASONSDPERIODS>-MANDT = 1.
<ASEASONSDPERIODS>-CONDITIONRECORD = 1.
<ASEASONSDPERIODS>-PRODUCTSEASONYEAR = 1.
<ASEASONSDPERIODS>-PRODUCTSEASON = 1.
<ASEASONSDPERIODS>-PRODUCTCOLLECTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ASEASONSDPERIODS-PRODUCTTHEME, sy-vline,
  WA_ASEASONSDPERIODS-SALESORGANIZATION, sy-vline,
  WA_ASEASONSDPERIODS-DISTRIBUTIONCHANNEL, sy-vline,
  WA_ASEASONSDPERIODS-COUNTRY, sy-vline,
  WA_ASEASONSDPERIODS-REGION, sy-vline,
  WA_ASEASONSDPERIODS-CUSTOMERGROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ASEASONSDPERIODS 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_ASEASONSDPERIODS 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_ASEASONSDPERIODS INTO WA_ASEASONSDPERIODS.


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

*Conversion exit PARVW, internal->external for field PARTNERFUNCTION
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_ASEASONSDPERIODS-PARTNERFUNCTION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ASEASONSDPERIODS-PARTNERFUNCTION.
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_ASEASONSDPERIODS_STR, 
MANDT TYPE STRING,
CONDITIONRECORD TYPE STRING,
PRODUCTSEASONYEAR TYPE STRING,
PRODUCTSEASON TYPE STRING,
PRODUCTCOLLECTION TYPE STRING,
PRODUCTTHEME TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
CUSTOMERGROUP TYPE STRING,
SOLDTOPARTY TYPE STRING,
SALESDISTRICT TYPE STRING,
PARTNERFUNCTION TYPE STRING,
DELIVERYSTARTDATE TYPE STRING,
DELIVERYENDDATE TYPE STRING,
ORDERSTARTDATE TYPE STRING,
ORDERENDDATE TYPE STRING,
STORESALESTARTDATE TYPE STRING,
STORESALEENDDATE TYPE STRING,
DELIVERYDATEISPROPOSED TYPE STRING,
PROPOSEDDELIVERYDATE TYPE STRING,
ATPCHECKSTARTDATE TYPE STRING,
PREFERREDDELIVERYDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ASEASONSDPERIODS_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_ASEASONSDPERIODS_STR-MANDT sy-vline 
WA_ASEASONSDPERIODS_STR-CONDITIONRECORD sy-vline 
WA_ASEASONSDPERIODS_STR-PRODUCTSEASONYEAR sy-vline 
WA_ASEASONSDPERIODS_STR-PRODUCTSEASON sy-vline 
WA_ASEASONSDPERIODS_STR-PRODUCTCOLLECTION sy-vline 
WA_ASEASONSDPERIODS_STR-PRODUCTTHEME sy-vline 
WA_ASEASONSDPERIODS_STR-SALESORGANIZATION sy-vline 
WA_ASEASONSDPERIODS_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_ASEASONSDPERIODS_STR-COUNTRY sy-vline 
WA_ASEASONSDPERIODS_STR-REGION sy-vline 
WA_ASEASONSDPERIODS_STR-CUSTOMERGROUP sy-vline 
WA_ASEASONSDPERIODS_STR-SOLDTOPARTY sy-vline 
WA_ASEASONSDPERIODS_STR-SALESDISTRICT sy-vline 
WA_ASEASONSDPERIODS_STR-PARTNERFUNCTION sy-vline 
WA_ASEASONSDPERIODS_STR-DELIVERYSTARTDATE sy-vline 
WA_ASEASONSDPERIODS_STR-DELIVERYENDDATE sy-vline 
WA_ASEASONSDPERIODS_STR-ORDERSTARTDATE sy-vline 
WA_ASEASONSDPERIODS_STR-ORDERENDDATE sy-vline 
WA_ASEASONSDPERIODS_STR-STORESALESTARTDATE sy-vline 
WA_ASEASONSDPERIODS_STR-STORESALEENDDATE sy-vline 
WA_ASEASONSDPERIODS_STR-DELIVERYDATEISPROPOSED sy-vline 
WA_ASEASONSDPERIODS_STR-PROPOSEDDELIVERYDATE sy-vline 
WA_ASEASONSDPERIODS_STR-ATPCHECKSTARTDATE sy-vline 
WA_ASEASONSDPERIODS_STR-PREFERREDDELIVERYDATE sy-vline 
WA_ASEASONSDPERIODS_STR-CREATEDBYUSER sy-vline 
WA_ASEASONSDPERIODS_STR-CREATIONDATE sy-vline 
WA_ASEASONSDPERIODS_STR-CREATIONTIME sy-vline 
WA_ASEASONSDPERIODS_STR-LASTCHANGEDBYUSER sy-vline 
WA_ASEASONSDPERIODS_STR-LASTCHANGEDATE sy-vline 
WA_ASEASONSDPERIODS_STR-LASTCHANGETIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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