ABAP Select data from SAP table PIQCA_MBSS_OFFER_AVAIL_STY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQCA_MBSS_OFFER_AVAIL_STY
*  INTO TABLE @DATA(IT_PIQCA_MBSS_OFFER_AVAIL_STY2).
*--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_PIQCA_MBSS_OFFER_AVAIL_STY INDEX 1 INTO DATA(WA_PIQCA_MBSS_OFFER_AVAIL_STY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQCA_MBSS_OFFER_AVAIL_STY>-SM_OBJID = 1.
<PIQCA_MBSS_OFFER_AVAIL_STY>-PLVAR = 1.
<PIQCA_MBSS_OFFER_AVAIL_STY>-OTYPE = 1.
<PIQCA_MBSS_OFFER_AVAIL_STY>-OBJID = 1.
<PIQCA_MBSS_OFFER_AVAIL_STY>-PERYR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQCA_MBSS_OFFER_AVAIL_STY-PERID, sy-vline,
  WA_PIQCA_MBSS_OFFER_AVAIL_STY-MINIMUM, sy-vline,
  WA_PIQCA_MBSS_OFFER_AVAIL_STY-OPTIMUM, sy-vline,
  WA_PIQCA_MBSS_OFFER_AVAIL_STY-MAXIMUM, sy-vline,
  WA_PIQCA_MBSS_OFFER_AVAIL_STY-RESERVED, sy-vline,
  WA_PIQCA_MBSS_OFFER_AVAIL_STY-BOOKED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQCA_MBSS_OFFER_AVAIL_STY 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_PIQCA_MBSS_OFFER_AVAIL_STY 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_PIQCA_MBSS_OFFER_AVAIL_STY INTO WA_PIQCA_MBSS_OFFER_AVAIL_STY.


*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_PIQCA_MBSS_OFFER_AVAIL_STY_STR, 
SM_OBJID TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
PERYR TYPE STRING,
PERID TYPE STRING,
MINIMUM TYPE STRING,
OPTIMUM TYPE STRING,
MAXIMUM TYPE STRING,
RESERVED TYPE STRING,
BOOKED TYPE STRING,
REQ_RESERVED TYPE STRING,
OFFER_AVAILABLE TYPE STRING,
OFFER_FREESEATS TYPE STRING,
WAITL_CAPACITY TYPE STRING,
WAITL_SIZE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQCA_MBSS_OFFER_AVAIL_STY_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_PIQCA_MBSS_OFFER_AVAIL_STY_STR-SM_OBJID sy-vline 
WA_PIQCA_MBSS_OFFER_AVAIL_STY_STR-PLVAR sy-vline 
WA_PIQCA_MBSS_OFFER_AVAIL_STY_STR-OTYPE sy-vline 
WA_PIQCA_MBSS_OFFER_AVAIL_STY_STR-OBJID sy-vline 
WA_PIQCA_MBSS_OFFER_AVAIL_STY_STR-PERYR sy-vline 
WA_PIQCA_MBSS_OFFER_AVAIL_STY_STR-PERID sy-vline 
WA_PIQCA_MBSS_OFFER_AVAIL_STY_STR-MINIMUM sy-vline 
WA_PIQCA_MBSS_OFFER_AVAIL_STY_STR-OPTIMUM sy-vline 
WA_PIQCA_MBSS_OFFER_AVAIL_STY_STR-MAXIMUM sy-vline 
WA_PIQCA_MBSS_OFFER_AVAIL_STY_STR-RESERVED sy-vline 
WA_PIQCA_MBSS_OFFER_AVAIL_STY_STR-BOOKED sy-vline 
WA_PIQCA_MBSS_OFFER_AVAIL_STY_STR-REQ_RESERVED sy-vline 
WA_PIQCA_MBSS_OFFER_AVAIL_STY_STR-OFFER_AVAILABLE sy-vline 
WA_PIQCA_MBSS_OFFER_AVAIL_STY_STR-OFFER_FREESEATS sy-vline 
WA_PIQCA_MBSS_OFFER_AVAIL_STY_STR-WAITL_CAPACITY sy-vline 
WA_PIQCA_MBSS_OFFER_AVAIL_STY_STR-WAITL_SIZE sy-vline      INTO ld_text SEPARATED BY SPACE.

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