ABAP Select data from SAP table TLSEP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TLSEP
*  INTO TABLE @DATA(IT_TLSEP2).
*--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_TLSEP INDEX 1 INTO DATA(WA_TLSEP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TLSEP>-MANDT = 1.
<TLSEP>-DOMAI = 1.
<TLSEP>-WERTE = 1.
<TLSEP>-LISTD = 1.
<TLSEP>-CPAGE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TLSEP-RECEI, sy-vline,
  WA_TLSEP-SPOOL, sy-vline,
  WA_TLSEP-DESTI, sy-vline,
  WA_TLSEP-LISTN, sy-vline,
  WA_TLSEP-AUTHG, sy-vline,
  WA_TLSEP-PASSW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TLSEP 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_TLSEP 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_TLSEP INTO WA_TLSEP.


*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 SPDEV, internal->external for field DESTI
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_TLSEP-DESTI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TLSEP-DESTI.
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_TLSEP_STR, 
MANDT TYPE STRING,
DOMAI TYPE STRING,
WERTE TYPE STRING,
LISTD TYPE STRING,
CPAGE TYPE STRING,
RECEI TYPE STRING,
SPOOL TYPE STRING,
DESTI TYPE STRING,
LISTN TYPE STRING,
AUTHG TYPE STRING,
PASSW TYPE STRING,
PRIDE TYPE STRING,
NLLID TYPE STRING,
SOFOR TYPE STRING,
KEEPS TYPE STRING,
DAEXP TYPE STRING,
FTEX1 TYPE STRING,
FTEX2 TYPE STRING,
CTEXT TYPE STRING,
SPLFO TYPE STRING,
LAYOT TYPE STRING,
AUTHO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TLSEP_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_TLSEP_STR-MANDT sy-vline 
WA_TLSEP_STR-DOMAI sy-vline 
WA_TLSEP_STR-WERTE sy-vline 
WA_TLSEP_STR-LISTD sy-vline 
WA_TLSEP_STR-CPAGE sy-vline 
WA_TLSEP_STR-RECEI sy-vline 
WA_TLSEP_STR-SPOOL sy-vline 
WA_TLSEP_STR-DESTI sy-vline 
WA_TLSEP_STR-LISTN sy-vline 
WA_TLSEP_STR-AUTHG sy-vline 
WA_TLSEP_STR-PASSW sy-vline 
WA_TLSEP_STR-PRIDE sy-vline 
WA_TLSEP_STR-NLLID sy-vline 
WA_TLSEP_STR-SOFOR sy-vline 
WA_TLSEP_STR-KEEPS sy-vline 
WA_TLSEP_STR-DAEXP sy-vline 
WA_TLSEP_STR-FTEX1 sy-vline 
WA_TLSEP_STR-FTEX2 sy-vline 
WA_TLSEP_STR-CTEXT sy-vline 
WA_TLSEP_STR-SPLFO sy-vline 
WA_TLSEP_STR-LAYOT sy-vline 
WA_TLSEP_STR-AUTHO sy-vline      INTO ld_text SEPARATED BY SPACE.

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