ABAP Select data from SAP table O2APPLATTR into internal table



Get Example source ABAP code based on a different SAP table
  

Below is a number of ABAP code snippets to demonstrate how to select data from SAP O2APPLATTR 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 O2APPLATTR. 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 O2APPLATTR 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_O2APPLATTR TYPE STANDARD TABLE OF O2APPLATTR,
      WA_O2APPLATTR TYPE O2APPLATTR,
      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: <O2APPLATTR> TYPE O2APPLATTR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_O2APPLATTR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM O2APPLATTR
  INTO TABLE IT_O2APPLATTR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM O2APPLATTR
*  INTO TABLE @DATA(IT_O2APPLATTR2).
*--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_O2APPLATTR INDEX 1 INTO DATA(WA_O2APPLATTR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_O2APPLATTR ASSIGNING <O2APPLATTR>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<O2APPLATTR>-APPLNAME = 1.
<O2APPLATTR>-VERSION = 1.
<O2APPLATTR>-APPLCLAS = 1.
<O2APPLATTR>-AUTHOR = 1.
<O2APPLATTR>-CREATEDON = 1.
ENDLOOP.

LOOP AT IT_O2APPLATTR INTO WA_O2APPLATTR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_O2APPLATTR-CHANGEDBY, sy-vline,
WA_O2APPLATTR-CHANGEDON, sy-vline,
WA_O2APPLATTR-APPLEXT, sy-vline,
WA_O2APPLATTR-THEME, sy-vline,
WA_O2APPLATTR-STARTPAGE, sy-vline,
WA_O2APPLATTR-STATEFUL, sy-vline.
ENDLOOP. *Add any further fields from structure WA_O2APPLATTR 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_O2APPLATTR 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_O2APPLATTR INTO WA_O2APPLATTR. *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 ISOLA, internal->external for field ORIGLANG CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT' EXPORTING input = WA_O2APPLATTR-ORIGLANG IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_O2APPLATTR-ORIGLANG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field MODIFLANG CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT' EXPORTING input = WA_O2APPLATTR-MODIFLANG IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_O2APPLATTR-MODIFLANG.
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_O2APPLATTR_STR,
APPLNAME TYPE STRING,
VERSION TYPE STRING,
APPLCLAS TYPE STRING,
AUTHOR TYPE STRING,
CREATEDON TYPE STRING,
CHANGEDBY TYPE STRING,
CHANGEDON TYPE STRING,
APPLEXT TYPE STRING,
THEME TYPE STRING,
STARTPAGE TYPE STRING,
STATEFUL TYPE STRING,
SESSIONMANAGEMNT TYPE STRING,
SECURITY TYPE STRING,
DEVCLASS TYPE STRING,
ORIGLANG TYPE STRING,
MODIFLANG TYPE STRING,
TEXT TYPE STRING,END OF T_EKKO_STR. DATA: WA_O2APPLATTR_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_O2APPLATTR_STR-APPLNAME sy-vline
WA_O2APPLATTR_STR-VERSION sy-vline
WA_O2APPLATTR_STR-APPLCLAS sy-vline
WA_O2APPLATTR_STR-AUTHOR sy-vline
WA_O2APPLATTR_STR-CREATEDON sy-vline
WA_O2APPLATTR_STR-CHANGEDBY sy-vline
WA_O2APPLATTR_STR-CHANGEDON sy-vline
WA_O2APPLATTR_STR-APPLEXT sy-vline
WA_O2APPLATTR_STR-THEME sy-vline
WA_O2APPLATTR_STR-STARTPAGE sy-vline
WA_O2APPLATTR_STR-STATEFUL sy-vline
WA_O2APPLATTR_STR-SESSIONMANAGEMNT sy-vline
WA_O2APPLATTR_STR-SECURITY sy-vline
WA_O2APPLATTR_STR-DEVCLASS sy-vline
WA_O2APPLATTR_STR-ORIGLANG sy-vline
WA_O2APPLATTR_STR-MODIFLANG sy-vline
WA_O2APPLATTR_STR-TEXT sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.