ABAP Select data from SAP table P06_T_DSN_EMPL 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_EMPL 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_EMPL. 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_EMPL 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_EMPL TYPE STANDARD TABLE OF P06_T_DSN_EMPL,
      WA_P06_T_DSN_EMPL TYPE P06_T_DSN_EMPL,
      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_EMPL> TYPE P06_T_DSN_EMPL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P06_T_DSN_EMPL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P06_T_DSN_EMPL
  INTO TABLE IT_P06_T_DSN_EMPL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P06_T_DSN_EMPL
*  INTO TABLE @DATA(IT_P06_T_DSN_EMPL2).
*--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_EMPL INDEX 1 INTO DATA(WA_P06_T_DSN_EMPL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P06_T_DSN_EMPL ASSIGNING <P06_T_DSN_EMPL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P06_T_DSN_EMPL>-SECTN = 1.
<P06_T_DSN_EMPL>-EMNIR = 1.
<P06_T_DSN_EMPL>-EMNAP = 1.
<P06_T_DSN_EMPL>-EMNAM = 1.
<P06_T_DSN_EMPL>-EMVOR = 1.

ENDLOOP.

LOOP AT IT_P06_T_DSN_EMPL INTO WA_P06_T_DSN_EMPL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P06_T_DSN_EMPL-EMGES, sy-vline,
  WA_P06_T_DSN_EMPL-EMGBD, sy-vline,
  WA_P06_T_DSN_EMPL-EMGBO, sy-vline,
  WA_P06_T_DSN_EMPL-EMNEN, sy-vline,
  WA_P06_T_DSN_EMPL-EMPST, sy-vline,
  WA_P06_T_DSN_EMPL-EMLOC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P06_T_DSN_EMPL 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_EMPL 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_EMPL INTO WA_P06_T_DSN_EMPL.


*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_EMPL_STR, 
SECTN TYPE STRING,
EMNIR TYPE STRING,
EMNAP TYPE STRING,
EMNAM TYPE STRING,
EMVOR TYPE STRING,
EMGES TYPE STRING,
EMGBD TYPE STRING,
EMGBO TYPE STRING,
EMNEN TYPE STRING,
EMPST TYPE STRING,
EMLOC TYPE STRING,
EMPCO TYPE STRING,
EMADD TYPE STRING,
EMCUE TYPE STRING,
EMCDN TYPE STRING,
EMCOP TYPE STRING,
EMCPL TYPE STRING,
EMSRV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P06_T_DSN_EMPL_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_EMPL_STR-SECTN sy-vline 
WA_P06_T_DSN_EMPL_STR-EMNIR sy-vline 
WA_P06_T_DSN_EMPL_STR-EMNAP sy-vline 
WA_P06_T_DSN_EMPL_STR-EMNAM sy-vline 
WA_P06_T_DSN_EMPL_STR-EMVOR sy-vline 
WA_P06_T_DSN_EMPL_STR-EMGES sy-vline 
WA_P06_T_DSN_EMPL_STR-EMGBD sy-vline 
WA_P06_T_DSN_EMPL_STR-EMGBO sy-vline 
WA_P06_T_DSN_EMPL_STR-EMNEN sy-vline 
WA_P06_T_DSN_EMPL_STR-EMPST sy-vline 
WA_P06_T_DSN_EMPL_STR-EMLOC sy-vline 
WA_P06_T_DSN_EMPL_STR-EMPCO sy-vline 
WA_P06_T_DSN_EMPL_STR-EMADD sy-vline 
WA_P06_T_DSN_EMPL_STR-EMCUE sy-vline 
WA_P06_T_DSN_EMPL_STR-EMCDN sy-vline 
WA_P06_T_DSN_EMPL_STR-EMCOP sy-vline 
WA_P06_T_DSN_EMPL_STR-EMCPL sy-vline 
WA_P06_T_DSN_EMPL_STR-EMSRV sy-vline      INTO ld_text SEPARATED BY SPACE.

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