ABAP program for loading PC file into table

ZTABLE_LOAD program can be used to load data into any table in SAP. Program only works in 4.6x version. Program extensively uses Dynammic language concepts.

REPORT ztable_load .

*This program loads data into any table specified on selection screen.
*File should be PC file with TAB delimiter and the order of the
*fields in the file should match with TABLE fields order.

TABLES: dd03l.  "Table Fields

DATA:  dref TYPE REF TO data.  "Reference Variable
DATA : fields_itab LIKE dd03l OCCURS 0 WITH HEADER LINE.
DATA : data_itab(1000) TYPE c OCCURS 0 WITH HEADER LINE.
FIELD-SYMBOLS: <fs_table_wa>,  "Points to Table work area
               <fs_field>.     "Points to Table Field

PARAMETER : p_table LIKE dd03l-tabname OBLIGATORY.
PARAMETER : p_file LIKE ibipgettxt-tdfilename OBLIGATORY.

DATA : v_hex TYPE x VALUE '09'. "Tab delimiter

DATA: i_tmp(100) OCCURS 0 WITH HEADER LINE.  "Split internal table


            mask             = ',*.*,*.*.'
            filename         = p_file
            inv_winsys       = 1
            no_batch         = 2
            selection_cancel = 3
            selection_error  = 4
            OTHERS           = 5.

  REFRESH fields_itab.
  SELECT        * FROM  dd03l
         WHERE  tabname     = p_table

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AND as4local = 'A'. IF dd03l-fieldname NE '.INCLUDE '. MOVE dd03l TO fields_itab. APPEND fields_itab. ENDIF. ENDSELECT. IF sy-subrc NE 0. MESSAGE e005(zb). ENDIF. ********************** MAIN PROCESSING BLOCK *************************** START-OF-SELECTION. PERFORM f_open_file. PERFORM f_dynamic_table_load. *---------------------------------------------------------------------* * FORM f_open_file * *---------------------------------------------------------------------* * ........ * *---------------------------------------------------------------------* FORM f_open_file. REFRESH data_itab. CALL FUNCTION 'WS_UPLOAD' EXPORTING filename = p_file filetype = 'ASC' TABLES data_tab = data_itab EXCEPTIONS conversion_error = 1 file_open_error = 2 file_read_error = 3 invalid_table_width = 4 invalid_type = 5 no_batch = 6 unknown_error = 7 OTHERS = 8. IF sy-subrc NE 0. WRITE : ' Error in opening file : ' , p_file. STOP. ENDIF. ENDFORM. *---------------------------------------------------------------------* * FORM f_dynamic_table_load * *---------------------------------------------------------------------* * ........ * *---------------------------------------------------------------------* FORM f_dynamic_table_load. *---Create a new data object of table specified in parameter (p_table) *---Reference is stored in dref variable. dref now contains a pointer *---to newly created object. CREATE DATA dref TYPE (p_table). *--Asssign the reference to field-symbol ASSIGN dref->* TO <fs_table_wa>. LOOP AT data_itab. REFRESH i_tmp. *--Split each input row data into tokens with Tab delimiter SPLIT data_itab AT v_hex INTO TABLE i_tmp. CLEAR <fs_table_wa>. *---Assign each field of table to field-symbol <fs1> DO. ASSIGN COMPONENT sy-index OF STRUCTURE <fs_table_wa> TO <fs_field> . IF sy-subrc NE 0. EXIT. ENDIF. READ TABLE i_tmp INDEX sy-index. IF sy-subrc EQ 0. <fs_field> = i_tmp. ENDIF. ENDDO. *--Now <fs> will have all the data - Modify the table MODIFY (p_table) FROM <fs_table_wa>. ENDLOOP. clear sy-tfill. describe table data_itab lines sy-tfill. Write: /'Total number of records updated in Table ', p_table no-gap, ' are : ', sy-tfill. ENDFORM. " LOAD_TABLES

This was first published in January 2002

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