ABAP Select data from SAP table RKATKL into internal table
Get Example source ABAP code based on a different SAP table
Below is a number of ABAP code snippets to demonstrate how to select data from SAP RKATKL 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 RKATKL. 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 RKATKL 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_RKATKL TYPE STANDARD TABLE OF RKATKL, WA_RKATKL TYPE RKATKL, 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: <RKATKL> TYPE RKATKL. *Process all fields in table header/work area as string values PERFORM process_as_string_field_values CHANGING wa_RKATKL. SELECT * *restrict ABAP select to first 10 rows UP TO 10 ROWS FROM RKATKL INTO TABLE IT_RKATKL. *Select data and declare internal table using in-line method @DATA *SELECT * * FROM RKATKL * INTO TABLE @DATA(IT_RKATKL2). *--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_RKATKL INDEX 1 INTO DATA(WA_RKATKL2). *Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL LOOP AT IT_RKATKL ASSIGNING <RKATKL>.*To update a field value using a field symbol simply change the value via the field symbol pointer
<RKATKL>-KOSTL = 1.
<RKATKL>-KSKTXT = 1.
<RKATKL>-LSTAR = 1.
<RKATKL>-LAKTXT = 1.
<RKATKL>-TARKZ = 1.
ENDLOOP. LOOP AT IT_RKATKL INTO WA_RKATKL. *Write horizonal line to screen report. WRITE:/ sy-uline. *Write selected data to screen/report before conversion. WRITE:/ sy-vline, WA_RKATKL-WRTTP, sy-vline,
WA_RKATKL-TARVKZ, sy-vline,
WA_RKATKL-KWAER, sy-vline,
WA_RKATKL-TKEMIN, sy-vline,
WA_RKATKL-TKGMEAN, sy-vline,
WA_RKATKL-TKVMEAN, sy-vline.
ENDLOOP. *Add any further fields from structure WA_RKATKL 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_RKATKL 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_RKATKL INTO WA_RKATKL. *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 ALPHA, internal->external for field KOSTL CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_RKATKL-KOSTL IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_RKATKL-KOSTL.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field TARKZ CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_RKATKL-TARKZ IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_RKATKL-TARKZ.
WRITE:/ 'New Value:', ld_input.
*Conversion exit ALPHA, internal->external for field WRTTP CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_RKATKL-WRTTP IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_RKATKL-WRTTP.
WRITE:/ 'New Value:', ld_input.
*Conversion exit AC112, internal->external for field TKGMEAN CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT' EXPORTING input = WA_RKATKL-TKGMEAN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_RKATKL-TKGMEAN.
WRITE:/ 'New Value:', ld_input.
*Conversion exit AC112, internal->external for field TKVMEAN CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT' EXPORTING input = WA_RKATKL-TKVMEAN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_RKATKL-TKVMEAN.
WRITE:/ 'New Value:', ld_input.
*Conversion exit AC112, internal->external for field TKFMEAN CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT' EXPORTING input = WA_RKATKL-TKFMEAN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_RKATKL-TKFMEAN.
WRITE:/ 'New Value:', ld_input.
*Conversion exit AC112, internal->external for field TOGMEAN CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT' EXPORTING input = WA_RKATKL-TOGMEAN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_RKATKL-TOGMEAN.
WRITE:/ 'New Value:', ld_input.
*Conversion exit AC112, internal->external for field TOVMEAN CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT' EXPORTING input = WA_RKATKL-TOVMEAN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_RKATKL-TOVMEAN.
WRITE:/ 'New Value:', ld_input.
*Conversion exit AC112, internal->external for field TOFMEAN CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT' EXPORTING input = WA_RKATKL-TOFMEAN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_RKATKL-TOFMEAN.
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_RKATKL_STR,
KOSTL TYPE STRING,
KSKTXT TYPE STRING,
LSTAR TYPE STRING,
LAKTXT TYPE STRING,
TARKZ TYPE STRING,
WRTTP TYPE STRING,
TARVKZ TYPE STRING,
KWAER TYPE STRING,
TKEMIN TYPE STRING,
TKGMEAN TYPE STRING,
TKVMEAN TYPE STRING,
TKFMEAN TYPE STRING,
OWAER TYPE STRING,
TOEMIN TYPE STRING,
TOGMEAN TYPE STRING,
TOVMEAN TYPE STRING,
TOFMEAN TYPE STRING,END OF T_EKKO_STR. DATA: WA_RKATKL_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_RKATKL_STR-KOSTL sy-vline
WA_RKATKL_STR-KSKTXT sy-vline
WA_RKATKL_STR-LSTAR sy-vline
WA_RKATKL_STR-LAKTXT sy-vline
WA_RKATKL_STR-TARKZ sy-vline
WA_RKATKL_STR-WRTTP sy-vline
WA_RKATKL_STR-TARVKZ sy-vline
WA_RKATKL_STR-KWAER sy-vline
WA_RKATKL_STR-TKEMIN sy-vline
WA_RKATKL_STR-TKGMEAN sy-vline
WA_RKATKL_STR-TKVMEAN sy-vline
WA_RKATKL_STR-TKFMEAN sy-vline
WA_RKATKL_STR-OWAER sy-vline
WA_RKATKL_STR-TOEMIN sy-vline
WA_RKATKL_STR-TOGMEAN sy-vline
WA_RKATKL_STR-TOVMEAN sy-vline
WA_RKATKL_STR-TOFMEAN sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.