Answer / deepak singh

throug the Text_io package

Answer / avi007

DECLARE
fileHandler UTL_FILE.FILE_TYPE;
BEGIN
fileHandler := UTL_FILE.FOPEN('/tmp', 'myfile', 'W');
UTL_FILE.PUTF(fileHandler, 'Look ma, I''m writing to a
file!!!\n');
UTL_FILE.FCLOSE(fileHandler);
EXCEPTION
WHEN utl_file.invalid_path THEN
raise_application_error(-20000, 'ERROR:
Invalid path
for file or path not in INIT.ORA.');
END;
/

Answer / avi007

--Read file

DECLARE
fileHandler UTL_FILE.FILE_TYPE;
BEGIN
fileHandler := UTL_FILE.FOPEN('/tmp', 'myfile', 'R');
UTL_FILE.GETF(fileHandler, 'Look ma, I''m writing to a
file!!!\n');
UTL_FILE.FCLOSE(fileHandler);
EXCEPTION
WHEN utl_file.invalid_path THEN
raise_application_error(-20000, 'ERROR:
Invalid path
for file or path not in INIT.ORA.');
END;
/

Which query operators in sql is used for pattern matching?

0 Answers  

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What is having clause in sql?

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