ABAP Select data from SAP table CUKDTB 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 CUKDTB 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 CUKDTB. 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 CUKDTB 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_CUKDTB TYPE STANDARD TABLE OF CUKDTB,
      WA_CUKDTB TYPE CUKDTB,
      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: <CUKDTB> TYPE CUKDTB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CUKDTB
*  INTO TABLE @DATA(IT_CUKDTB2).
*--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_CUKDTB INDEX 1 INTO DATA(WA_CUKDTB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CUKDTB ASSIGNING <CUKDTB>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<CUKDTB>-KNINR = 1.
<CUKDTB>-ADZHL = 1.
<CUKDTB>-SPRAS = 1.
<CUKDTB>-KNNAM = 1.
<CUKDTB>-KNART = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CUKDTB-KNSOFT, sy-vline,
WA_CUKDTB-KNVER, sy-vline,
WA_CUKDTB-KNSTA, sy-vline,
WA_CUKDTB-KNEDT, sy-vline,
WA_CUKDTB-KNEUS, sy-vline,
WA_CUKDTB-KNADT, sy-vline.
ENDLOOP. *Add any further fields from structure WA_CUKDTB 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_CUKDTB 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_CUKDTB INTO WA_CUKDTB. *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 ISOLA, internal->external for field SPRAS CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT' EXPORTING input = WA_CUKDTB-SPRAS IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_CUKDTB-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AENNR, internal->external for field AENNR CALL FUNCTION 'CONVERSION_EXIT_AENNR_OUTPUT' EXPORTING input = WA_CUKDTB-AENNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_CUKDTB-AENNR.
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_CUKDTB_STR,
KNINR TYPE STRING,
ADZHL TYPE STRING,
SPRAS TYPE STRING,
KNNAM TYPE STRING,
KNART TYPE STRING,
KNSOFT TYPE STRING,
KNVER TYPE STRING,
KNSTA TYPE STRING,
KNEDT TYPE STRING,
KNEUS TYPE STRING,
KNADT TYPE STRING,
KNAUS TYPE STRING,
KNGRP TYPE STRING,
KNKTX TYPE STRING,
KNSRT TYPE STRING,
KNBEO TYPE STRING,
AENNR TYPE STRING,
DATUV TYPE STRING,
MARKED TYPE STRING,END OF T_EKKO_STR. DATA: WA_CUKDTB_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_CUKDTB_STR-KNINR sy-vline
WA_CUKDTB_STR-ADZHL sy-vline
WA_CUKDTB_STR-SPRAS sy-vline
WA_CUKDTB_STR-KNNAM sy-vline
WA_CUKDTB_STR-KNART sy-vline
WA_CUKDTB_STR-KNSOFT sy-vline
WA_CUKDTB_STR-KNVER sy-vline
WA_CUKDTB_STR-KNSTA sy-vline
WA_CUKDTB_STR-KNEDT sy-vline
WA_CUKDTB_STR-KNEUS sy-vline
WA_CUKDTB_STR-KNADT sy-vline
WA_CUKDTB_STR-KNAUS sy-vline
WA_CUKDTB_STR-KNGRP sy-vline
WA_CUKDTB_STR-KNKTX sy-vline
WA_CUKDTB_STR-KNSRT sy-vline
WA_CUKDTB_STR-KNBEO sy-vline
WA_CUKDTB_STR-AENNR sy-vline
WA_CUKDTB_STR-DATUV sy-vline
WA_CUKDTB_STR-MARKED sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.