ABAP Select data from SAP table TFK059QE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TFK059QE 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 TFK059QE. 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 TFK059QE 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_TFK059QE TYPE STANDARD TABLE OF TFK059QE,
      WA_TFK059QE TYPE TFK059QE,
      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: <TFK059QE> TYPE TFK059QE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TFK059QE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TFK059QE
  INTO TABLE IT_TFK059QE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TFK059QE
*  INTO TABLE @DATA(IT_TFK059QE2).
*--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_TFK059QE INDEX 1 INTO DATA(WA_TFK059QE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TFK059QE ASSIGNING <TFK059QE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TFK059QE>-MANDT = 1.
<TFK059QE>-LAND1 = 1.
<TFK059QE>-QSSKZ = 1.
<TFK059QE>-QSSEW = 1.
<TFK059QE>-QSSBE = 1.

ENDLOOP.

LOOP AT IT_TFK059QE INTO WA_TFK059QE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TFK059QE-QPROZ, sy-vline,
  WA_TFK059QE-QSATZ, sy-vline,
  WA_TFK059QE-XALLP, sy-vline,
  WA_TFK059QE-XALLB, sy-vline,
  WA_TFK059QE-XALLA, sy-vline,
  WA_TFK059QE-XALLO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TFK059QE 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_TFK059QE 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_TFK059QE INTO WA_TFK059QE.


*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_TFK059QE_STR, 
MANDT TYPE STRING,
LAND1 TYPE STRING,
QSSKZ TYPE STRING,
QSSEW TYPE STRING,
QSSBE TYPE STRING,
QPROZ TYPE STRING,
QSATZ TYPE STRING,
XALLP TYPE STRING,
XALLB TYPE STRING,
XALLA TYPE STRING,
XALLO TYPE STRING,
T1099 TYPE STRING,
TIMPO TYPE STRING,
QSFUN TYPE STRING,
XSWHT TYPE STRING,
QSSEW_CORR TYPE STRING,
QSSEW_CUP TYPE STRING,
J1B_TAXGRP TYPE STRING,
J1B_QSMINB TYPE STRING,
J1B_WAERS TYPE STRING,
J1B_QSMINT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TFK059QE_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_TFK059QE_STR-MANDT sy-vline 
WA_TFK059QE_STR-LAND1 sy-vline 
WA_TFK059QE_STR-QSSKZ sy-vline 
WA_TFK059QE_STR-QSSEW sy-vline 
WA_TFK059QE_STR-QSSBE sy-vline 
WA_TFK059QE_STR-QPROZ sy-vline 
WA_TFK059QE_STR-QSATZ sy-vline 
WA_TFK059QE_STR-XALLP sy-vline 
WA_TFK059QE_STR-XALLB sy-vline 
WA_TFK059QE_STR-XALLA sy-vline 
WA_TFK059QE_STR-XALLO sy-vline 
WA_TFK059QE_STR-T1099 sy-vline 
WA_TFK059QE_STR-TIMPO sy-vline 
WA_TFK059QE_STR-QSFUN sy-vline 
WA_TFK059QE_STR-XSWHT sy-vline 
WA_TFK059QE_STR-QSSEW_CORR sy-vline 
WA_TFK059QE_STR-QSSEW_CUP sy-vline 
WA_TFK059QE_STR-J1B_TAXGRP sy-vline 
WA_TFK059QE_STR-J1B_QSMINB sy-vline 
WA_TFK059QE_STR-J1B_WAERS sy-vline 
WA_TFK059QE_STR-J1B_QSMINT sy-vline      INTO ld_text SEPARATED BY SPACE.

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