ABAP Select data from SAP table P06_T_DSN_OEMP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P06_T_DSN_OEMP 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 P06_T_DSN_OEMP. 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 P06_T_DSN_OEMP 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_P06_T_DSN_OEMP TYPE STANDARD TABLE OF P06_T_DSN_OEMP,
      WA_P06_T_DSN_OEMP TYPE P06_T_DSN_OEMP,
      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: <P06_T_DSN_OEMP> TYPE P06_T_DSN_OEMP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P06_T_DSN_OEMP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P06_T_DSN_OEMP
  INTO TABLE IT_P06_T_DSN_OEMP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P06_T_DSN_OEMP
*  INTO TABLE @DATA(IT_P06_T_DSN_OEMP2).
*--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_P06_T_DSN_OEMP INDEX 1 INTO DATA(WA_P06_T_DSN_OEMP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P06_T_DSN_OEMP ASSIGNING <P06_T_DSN_OEMP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P06_T_DSN_OEMP>-SECTN = 1.
<P06_T_DSN_OEMP>-OEMOD = 1.
<P06_T_DSN_OEMP>-OENEN = 1.
<P06_T_DSN_OEMP>-OEPST = 1.
<P06_T_DSN_OEMP>-OELOC = 1.

ENDLOOP.

LOOP AT IT_P06_T_DSN_OEMP INTO WA_P06_T_DSN_OEMP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P06_T_DSN_OEMP-OEPCO, sy-vline,
  WA_P06_T_DSN_OEMP-OEADD, sy-vline,
  WA_P06_T_DSN_OEMP-OEEVT, sy-vline,
  WA_P06_T_DSN_OEMP-OENIR, sy-vline,
  WA_P06_T_DSN_OEMP-OENAP, sy-vline,
  WA_P06_T_DSN_OEMP-OEVOR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P06_T_DSN_OEMP 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_P06_T_DSN_OEMP 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_P06_T_DSN_OEMP INTO WA_P06_T_DSN_OEMP.


*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_P06_T_DSN_OEMP_STR, 
SECTN TYPE STRING,
OEMOD TYPE STRING,
OENEN TYPE STRING,
OEPST TYPE STRING,
OELOC TYPE STRING,
OEPCO TYPE STRING,
OEADD TYPE STRING,
OEEVT TYPE STRING,
OENIR TYPE STRING,
OENAP TYPE STRING,
OEVOR TYPE STRING,
OEGBD TYPE STRING,
OECDN TYPE STRING,
OECOP TYPE STRING,
OECPL TYPE STRING,
OESRV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P06_T_DSN_OEMP_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_P06_T_DSN_OEMP_STR-SECTN sy-vline 
WA_P06_T_DSN_OEMP_STR-OEMOD sy-vline 
WA_P06_T_DSN_OEMP_STR-OENEN sy-vline 
WA_P06_T_DSN_OEMP_STR-OEPST sy-vline 
WA_P06_T_DSN_OEMP_STR-OELOC sy-vline 
WA_P06_T_DSN_OEMP_STR-OEPCO sy-vline 
WA_P06_T_DSN_OEMP_STR-OEADD sy-vline 
WA_P06_T_DSN_OEMP_STR-OEEVT sy-vline 
WA_P06_T_DSN_OEMP_STR-OENIR sy-vline 
WA_P06_T_DSN_OEMP_STR-OENAP sy-vline 
WA_P06_T_DSN_OEMP_STR-OEVOR sy-vline 
WA_P06_T_DSN_OEMP_STR-OEGBD sy-vline 
WA_P06_T_DSN_OEMP_STR-OECDN sy-vline 
WA_P06_T_DSN_OEMP_STR-OECOP sy-vline 
WA_P06_T_DSN_OEMP_STR-OECPL sy-vline 
WA_P06_T_DSN_OEMP_STR-OESRV sy-vline      INTO ld_text SEPARATED BY SPACE.

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