ABAP Select data from SAP table TKED1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TKED1 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 TKED1. 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 TKED1 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_TKED1 TYPE STANDARD TABLE OF TKED1,
      WA_TKED1 TYPE TKED1,
      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: <TKED1> TYPE TKED1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TKED1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TKED1
  INTO TABLE IT_TKED1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TKED1
*  INTO TABLE @DATA(IT_TKED12).
*--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_TKED1 INDEX 1 INTO DATA(WA_TKED12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TKED1 ASSIGNING <TKED1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TKED1>-MANDT = 1.
<TKED1>-APPLCLASS = 1.
<TKED1>-SUBCLASS = 1.
<TKED1>-TABNAME = 1.
<TKED1>-REPID = 1.

ENDLOOP.

LOOP AT IT_TKED1 INTO WA_TKED1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TKED1-METHOD, sy-vline,
  WA_TKED1-RESULTNO, sy-vline,
  WA_TKED1-UNAME, sy-vline,
  WA_TKED1-SAVEDATE, sy-vline,
  WA_TKED1-SAVETIME, sy-vline,
  WA_TKED1-METH_TEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TKED1 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_TKED1 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_TKED1 INTO WA_TKED1.


*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_TKED1_STR, 
MANDT TYPE STRING,
APPLCLASS TYPE STRING,
SUBCLASS TYPE STRING,
TABNAME TYPE STRING,
REPID TYPE STRING,
METHOD TYPE STRING,
RESULTNO TYPE STRING,
UNAME TYPE STRING,
SAVEDATE TYPE STRING,
SAVETIME TYPE STRING,
METH_TEXT TYPE STRING,
MAX_AUFSP TYPE STRING,
DIST_OBJ TYPE STRING,
DIST_DIM TYPE STRING,
OUTPUT TYPE STRING,
BREAKDOWN TYPE STRING,
VAR_VERF TYPE STRING,
CODE TYPE STRING,
BOPE TYPE STRING,
BWRT TYPE STRING,
FILT_END TYPE STRING,
FILT_EXPL TYPE STRING,
FILT_PROC TYPE STRING,
TIME_OUT TYPE STRING,
VAL_WEIGHT TYPE STRING,
VAL_CONTRO TYPE STRING,
WEI_WEIGHT TYPE STRING,
WEI_CONTRO TYPE STRING,
DUMMYPARA TYPE STRING,
FORM TYPE STRING,
STATUS01 TYPE STRING,
STATUS02 TYPE STRING,
POINTER01 TYPE STRING,
POINTER02 TYPE STRING,
DATDATE TYPE STRING,
DATTIME TYPE STRING,
SEL_FLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TKED1_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_TKED1_STR-MANDT sy-vline 
WA_TKED1_STR-APPLCLASS sy-vline 
WA_TKED1_STR-SUBCLASS sy-vline 
WA_TKED1_STR-TABNAME sy-vline 
WA_TKED1_STR-REPID sy-vline 
WA_TKED1_STR-METHOD sy-vline 
WA_TKED1_STR-RESULTNO sy-vline 
WA_TKED1_STR-UNAME sy-vline 
WA_TKED1_STR-SAVEDATE sy-vline 
WA_TKED1_STR-SAVETIME sy-vline 
WA_TKED1_STR-METH_TEXT sy-vline 
WA_TKED1_STR-MAX_AUFSP sy-vline 
WA_TKED1_STR-DIST_OBJ sy-vline 
WA_TKED1_STR-DIST_DIM sy-vline 
WA_TKED1_STR-OUTPUT sy-vline 
WA_TKED1_STR-BREAKDOWN sy-vline 
WA_TKED1_STR-VAR_VERF sy-vline 
WA_TKED1_STR-CODE sy-vline 
WA_TKED1_STR-BOPE sy-vline 
WA_TKED1_STR-BWRT sy-vline 
WA_TKED1_STR-FILT_END sy-vline 
WA_TKED1_STR-FILT_EXPL sy-vline 
WA_TKED1_STR-FILT_PROC sy-vline 
WA_TKED1_STR-TIME_OUT sy-vline 
WA_TKED1_STR-VAL_WEIGHT sy-vline 
WA_TKED1_STR-VAL_CONTRO sy-vline 
WA_TKED1_STR-WEI_WEIGHT sy-vline 
WA_TKED1_STR-WEI_CONTRO sy-vline 
WA_TKED1_STR-DUMMYPARA sy-vline 
WA_TKED1_STR-FORM sy-vline 
WA_TKED1_STR-STATUS01 sy-vline 
WA_TKED1_STR-STATUS02 sy-vline 
WA_TKED1_STR-POINTER01 sy-vline 
WA_TKED1_STR-POINTER02 sy-vline 
WA_TKED1_STR-DATDATE sy-vline 
WA_TKED1_STR-DATTIME sy-vline 
WA_TKED1_STR-SEL_FLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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