ABAP Select data from SAP table OXT_ER_EXTTYP into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OXT_ER_EXTTYP
*  INTO TABLE @DATA(IT_OXT_ER_EXTTYP2).
*--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_OXT_ER_EXTTYP INDEX 1 INTO DATA(WA_OXT_ER_EXTTYP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OXT_ER_EXTTYP>-MANDT = 1.
<OXT_ER_EXTTYP>-BUSOBJ = 1.
<OXT_ER_EXTTYP>-EXTENSIONTYP = 1.
<OXT_ER_EXTTYP>-TASKSEQ = 1.
<OXT_ER_EXTTYP>-WIZARDFUNC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OXT_ER_EXTTYP-DEVLAYCHECK, sy-vline,
  WA_OXT_ER_EXTTYP-INACTIVE, sy-vline,
  WA_OXT_ER_EXTTYP-TDNAME, sy-vline,
  WA_OXT_ER_EXTTYP-ACTALLOWED, sy-vline,
  WA_OXT_ER_EXTTYP-DELALLOWED, sy-vline,
  WA_OXT_ER_EXTTYP-CHGALLOWED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OXT_ER_EXTTYP 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_OXT_ER_EXTTYP 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_OXT_ER_EXTTYP INTO WA_OXT_ER_EXTTYP.


*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_OXT_ER_EXTTYP_STR, 
MANDT TYPE STRING,
BUSOBJ TYPE STRING,
EXTENSIONTYP TYPE STRING,
TASKSEQ TYPE STRING,
WIZARDFUNC TYPE STRING,
DEVLAYCHECK TYPE STRING,
INACTIVE TYPE STRING,
TDNAME TYPE STRING,
ACTALLOWED TYPE STRING,
DELALLOWED TYPE STRING,
CHGALLOWED TYPE STRING,
X_GEN_ASYNCH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OXT_ER_EXTTYP_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_OXT_ER_EXTTYP_STR-MANDT sy-vline 
WA_OXT_ER_EXTTYP_STR-BUSOBJ sy-vline 
WA_OXT_ER_EXTTYP_STR-EXTENSIONTYP sy-vline 
WA_OXT_ER_EXTTYP_STR-TASKSEQ sy-vline 
WA_OXT_ER_EXTTYP_STR-WIZARDFUNC sy-vline 
WA_OXT_ER_EXTTYP_STR-DEVLAYCHECK sy-vline 
WA_OXT_ER_EXTTYP_STR-INACTIVE sy-vline 
WA_OXT_ER_EXTTYP_STR-TDNAME sy-vline 
WA_OXT_ER_EXTTYP_STR-ACTALLOWED sy-vline 
WA_OXT_ER_EXTTYP_STR-DELALLOWED sy-vline 
WA_OXT_ER_EXTTYP_STR-CHGALLOWED sy-vline 
WA_OXT_ER_EXTTYP_STR-X_GEN_ASYNCH sy-vline      INTO ld_text SEPARATED BY SPACE.

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