ABAP Select data from SAP table KCSKAB 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 KCSKAB 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 KCSKAB. 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 KCSKAB 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_KCSKAB TYPE STANDARD TABLE OF KCSKAB,
      WA_KCSKAB TYPE KCSKAB,
      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: <KCSKAB> TYPE KCSKAB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KCSKAB
*  INTO TABLE @DATA(IT_KCSKAB2).
*--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_KCSKAB INDEX 1 INTO DATA(WA_KCSKAB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KCSKAB ASSIGNING <KCSKAB>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<KCSKAB>-MANDT = 1.
<KCSKAB>-KOKRS = 1.
<KCSKAB>-KSTAR = 1.
<KCSKAB>-DATBI = 1.
<KCSKAB>-DATAB = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KCSKAB-ERSDA, sy-vline,
WA_KCSKAB-USNAM, sy-vline,
WA_KCSKAB-KATYP, sy-vline,
WA_KCSKAB-EIGEN, sy-vline,
WA_KCSKAB-PLAZU, sy-vline,
WA_KCSKAB-PLAOR, sy-vline.
ENDLOOP. *Add any further fields from structure WA_KCSKAB 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_KCSKAB 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_KCSKAB INTO WA_KCSKAB. *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 KSTAR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_KCSKAB-KSTAR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KCSKAB-KSTAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KATYP CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_KCSKAB-KATYP IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KCSKAB-KATYP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_KCSKAB-KOSTL IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KCSKAB-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_KCSKAB-AUFNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KCSKAB-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MSEHI CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_KCSKAB-MSEHI IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KCSKAB-MSEHI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECID CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_KCSKAB-RECID IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_KCSKAB-RECID.
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_KCSKAB_STR,
MANDT TYPE STRING,
KOKRS TYPE STRING,
KSTAR TYPE STRING,
DATBI TYPE STRING,
DATAB TYPE STRING,
ERSDA TYPE STRING,
USNAM TYPE STRING,
KATYP TYPE STRING,
EIGEN TYPE STRING,
PLAZU TYPE STRING,
PLAOR TYPE STRING,
PLAUS TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
MGEFL TYPE STRING,
MSEHI TYPE STRING,
KTEXT TYPE STRING,
LTEXT TYPE STRING,
STEKZ TYPE STRING,
RECID TYPE STRING,
FUNC_AREA TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR. DATA: WA_KCSKAB_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_KCSKAB_STR-MANDT sy-vline
WA_KCSKAB_STR-KOKRS sy-vline
WA_KCSKAB_STR-KSTAR sy-vline
WA_KCSKAB_STR-DATBI sy-vline
WA_KCSKAB_STR-DATAB sy-vline
WA_KCSKAB_STR-ERSDA sy-vline
WA_KCSKAB_STR-USNAM sy-vline
WA_KCSKAB_STR-KATYP sy-vline
WA_KCSKAB_STR-EIGEN sy-vline
WA_KCSKAB_STR-PLAZU sy-vline
WA_KCSKAB_STR-PLAOR sy-vline
WA_KCSKAB_STR-PLAUS sy-vline
WA_KCSKAB_STR-KOSTL sy-vline
WA_KCSKAB_STR-AUFNR sy-vline
WA_KCSKAB_STR-MGEFL sy-vline
WA_KCSKAB_STR-MSEHI sy-vline
WA_KCSKAB_STR-KTEXT sy-vline
WA_KCSKAB_STR-LTEXT sy-vline
WA_KCSKAB_STR-STEKZ sy-vline
WA_KCSKAB_STR-RECID sy-vline
WA_KCSKAB_STR-FUNC_AREA sy-vline
WA_KCSKAB_STR-KZ sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.