This script can be used to read data from a flat file and insert into a table.UTL_FILE ReadCREATE OR REPLACE PROCEDURE load_data(errbuff varchar2,errcode number)ASv_line VARCHAR2(2000); -- Data line read from input filev_file UTL_FILE.FILE_TYPE; -- Data file handlev_dir VARCHAR2(250); -- Directory containing the data filev_filename VARCHAR2(50); -- Data filenamev_1st_Comma number;v_2nd_Comma number;v_3rd_Comma number;v_4th_Comma number;v_5th_Comma number;v_empno sample_emp.empno%type;v_ename sample_emp.ename%type;v_job sample_emp.job%type;v_mgr sample_emp.mgr%type;v_hiredate sample_emp.hiredate%type;--v_sal sample_emp.sal%type;BEGINv_dir := '/usr/tmp';v_filename := 'sample.dat';v_file := UTL_FILE.FOPEN(v_dir, v_filename, 'r');-- ---------------------------------------------------------- Loop over the file, reading in each line. GET_LINE will-- raise NO_DATA_FOUND when it is done, so we use that as-- the exit condition for the loop.-- --------------------------------------------------------LOOPBEGINUTL_FILE.GET_LINE(v_file, v_line);EXCEPTIONWHEN no_data_found THENexit;END;-- ------------------------------------------------------------ Each field in the input record is delimited by commas. We-- need to find the locations of the two commas in the line,-- and use these locations to get the fields from v_line.-- ----------------------------------------------------------v_1st_Comma := INSTR(v_line, ',' ,1 , 1);v_2nd_Comma := INSTR(v_line, ',' ,1 , 2);v_3rd_Comma := INSTR(v_line, ',' ,1 , 3);v_4th_Comma := INSTR(v_line, ',' ,1 , 4);v_5th_Comma := INSTR(v_line, ',' ,1 , 5);v_empno := to_number(SUBSTR(v_line, 1, v_1st_Comma-1));v_ename := SUBSTR(v_line, v_1st_Comma+1, v_2nd_Comma-v_1st_Comma-1);v_job := SUBSTR(v_line, v_2nd_comma+1, v_3rd_Comma-v_2nd_Comma-1);v_mgr := to_number(SUBSTR(v_line, v_3rd_comma+1, v_4th_Comma-v_3rd_Comma-1));v_hiredate := to_date(SUBSTR(v_line, v_4th_comma+1, v_5th_Comma-v_4th_Comma-1),'DD-MON-YYYY');-- v_sal := to_number(SUBSTR(v_line, v_5th_comma+1),'99999');DBMS_OUTPUT.PUT_LINE(v_empno ||' '|| v_ename || ' ' || v_job || ' ' || v_mgr ||' ' || v_hiredate);-- -------------------------------------------- Insert the new record into the DEPT table.-- ------------------------------------------INSERT INTO sample_empVALUES (v_empno,v_ename,v_job,v_mgr,v_hiredate); END LOOP;UTL_FILE.FCLOSE(v_file);COMMIT;END;