ABAP Select data from SAP table UATSWSEKSEL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UATSWSEKSEL
*  INTO TABLE @DATA(IT_UATSWSEKSEL2).
*--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_UATSWSEKSEL INDEX 1 INTO DATA(WA_UATSWSEKSEL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UATSWSEKSEL>-SEARCH_KEY = 1.
<UATSWSEKSEL>-SEK_TAB = 1.
<UATSWSEKSEL>-TXT = 1.
<UATSWSEKSEL>-TABNAME = 1.
<UATSWSEKSEL>-FIELDNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UATSWSEKSEL-ENTRY, sy-vline,
  WA_UATSWSEKSEL-SIGN, sy-vline,
  WA_UATSWSEKSEL-OPTIO, sy-vline,
  WA_UATSWSEKSEL-LOW, sy-vline,
  WA_UATSWSEKSEL-HIGH, sy-vline,
  WA_UATSWSEKSEL-TYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UATSWSEKSEL 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_UATSWSEKSEL 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_UATSWSEKSEL INTO WA_UATSWSEKSEL.


*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 DTYPE, internal->external for field DATATYPE
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_UATSWSEKSEL-DATATYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UATSWSEKSEL-DATATYPE.
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_UATSWSEKSEL_STR, 
SEARCH_KEY TYPE STRING,
SEK_TAB TYPE STRING,
TXT TYPE STRING,
TABNAME TYPE STRING,
FIELDNAME TYPE STRING,
ENTRY TYPE STRING,
SIGN TYPE STRING,
OPTIO TYPE STRING,
LOW TYPE STRING,
HIGH TYPE STRING,
TYPE TYPE STRING,
OUTPUTLEN TYPE STRING,
INTLEN TYPE STRING,
CONVEXIT TYPE STRING,
SCRTEXT_M TYPE STRING,
SCRTEXT_L TYPE STRING,
DATATYPE TYPE STRING,
MARK TYPE STRING,
USED TYPE STRING,
REFFIELD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UATSWSEKSEL_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_UATSWSEKSEL_STR-SEARCH_KEY sy-vline 
WA_UATSWSEKSEL_STR-SEK_TAB sy-vline 
WA_UATSWSEKSEL_STR-TXT sy-vline 
WA_UATSWSEKSEL_STR-TABNAME sy-vline 
WA_UATSWSEKSEL_STR-FIELDNAME sy-vline 
WA_UATSWSEKSEL_STR-ENTRY sy-vline 
WA_UATSWSEKSEL_STR-SIGN sy-vline 
WA_UATSWSEKSEL_STR-OPTIO sy-vline 
WA_UATSWSEKSEL_STR-LOW sy-vline 
WA_UATSWSEKSEL_STR-HIGH sy-vline 
WA_UATSWSEKSEL_STR-TYPE sy-vline 
WA_UATSWSEKSEL_STR-OUTPUTLEN sy-vline 
WA_UATSWSEKSEL_STR-INTLEN sy-vline 
WA_UATSWSEKSEL_STR-CONVEXIT sy-vline 
WA_UATSWSEKSEL_STR-SCRTEXT_M sy-vline 
WA_UATSWSEKSEL_STR-SCRTEXT_L sy-vline 
WA_UATSWSEKSEL_STR-DATATYPE sy-vline 
WA_UATSWSEKSEL_STR-MARK sy-vline 
WA_UATSWSEKSEL_STR-USED sy-vline 
WA_UATSWSEKSEL_STR-REFFIELD sy-vline      INTO ld_text SEPARATED BY SPACE.

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