ABAP Select data from SAP table ASEASONPPPERIOD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ASEASONPPPERIOD
*  INTO TABLE @DATA(IT_ASEASONPPPERIOD2).
*--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_ASEASONPPPERIOD INDEX 1 INTO DATA(WA_ASEASONPPPERIOD2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ASEASONPPPERIOD-PRODUCTTHEME, sy-vline,
  WA_ASEASONPPPERIOD-ORDERTYPE, sy-vline,
  WA_ASEASONPPPERIOD-PLANT, sy-vline,
  WA_ASEASONPPPERIOD-MRPAREA, sy-vline,
  WA_ASEASONPPPERIOD-MRPCONTROLLER, sy-vline,
  WA_ASEASONPPPERIOD-DELIVERYSTARTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ASEASONPPPERIOD 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_ASEASONPPPERIOD 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_ASEASONPPPERIOD INTO WA_ASEASONPPPERIOD.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_ASEASONPPPERIOD_STR, 
MANDT TYPE STRING,
CONDITIONRECORD TYPE STRING,
PRODUCTSEASONYEAR TYPE STRING,
PRODUCTSEASON TYPE STRING,
PRODUCTCOLLECTION TYPE STRING,
PRODUCTTHEME TYPE STRING,
ORDERTYPE TYPE STRING,
PLANT TYPE STRING,
MRPAREA TYPE STRING,
MRPCONTROLLER TYPE STRING,
DELIVERYSTARTDATE TYPE STRING,
DELIVERYENDDATE TYPE STRING,
ORDERSTARTDATE TYPE STRING,
ORDERENDDATE 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_ASEASONPPPERIOD_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_ASEASONPPPERIOD_STR-MANDT sy-vline 
WA_ASEASONPPPERIOD_STR-CONDITIONRECORD sy-vline 
WA_ASEASONPPPERIOD_STR-PRODUCTSEASONYEAR sy-vline 
WA_ASEASONPPPERIOD_STR-PRODUCTSEASON sy-vline 
WA_ASEASONPPPERIOD_STR-PRODUCTCOLLECTION sy-vline 
WA_ASEASONPPPERIOD_STR-PRODUCTTHEME sy-vline 
WA_ASEASONPPPERIOD_STR-ORDERTYPE sy-vline 
WA_ASEASONPPPERIOD_STR-PLANT sy-vline 
WA_ASEASONPPPERIOD_STR-MRPAREA sy-vline 
WA_ASEASONPPPERIOD_STR-MRPCONTROLLER sy-vline 
WA_ASEASONPPPERIOD_STR-DELIVERYSTARTDATE sy-vline 
WA_ASEASONPPPERIOD_STR-DELIVERYENDDATE sy-vline 
WA_ASEASONPPPERIOD_STR-ORDERSTARTDATE sy-vline 
WA_ASEASONPPPERIOD_STR-ORDERENDDATE sy-vline 
WA_ASEASONPPPERIOD_STR-CREATEDBYUSER sy-vline 
WA_ASEASONPPPERIOD_STR-CREATIONDATE sy-vline 
WA_ASEASONPPPERIOD_STR-CREATIONTIME sy-vline 
WA_ASEASONPPPERIOD_STR-LASTCHANGEDBYUSER sy-vline 
WA_ASEASONPPPERIOD_STR-LASTCHANGEDATE sy-vline 
WA_ASEASONPPPERIOD_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.