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Top Forums UNIX for Dummies Questions & Answers How to read and write a random row from a file? Post 302193140 by sashankkrk on Thursday 8th of May 2008 04:02:25 PM
Old 05-08-2008
How to read and write a random row from a file?

Lets say I have a file abc.txt and it has about 35 million rows. I would like to take a sample of 100 random rows from that file for my testing purpose and write it to a file say test.txt.

How do I do this operation?

Thanks,
Sashank
 

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SQLSRV_HAS_ROWS(3)														SQLSRV_HAS_ROWS(3)

sqlsrv_has_rows - Indicates whether the specified statement has rows

SYNOPSIS
bool sqlsrv_has_rows (resource $stmt) DESCRIPTION
Indicates whether the specified statement has rows. PARAMETERS
o $stmt - A statement resource returned by sqlsrv_query(3) or sqlsrv_execute(3). RETURN VALUES
Returns TRUE if the specified statement has rows and FALSE if the statement does not have rows or if an error occurred. EXAMPLES
Example #1 sqlsrv_has_rows(3) example <?php $server = "serverNamesqlexpress"; $connectionInfo = array( "Database"=>"dbName", "UID"=>"username", "PWD"=>"password" ) $conn = sqlsrv_connect( $server, $connectionInfo ); $stmt = sqlsrv_query( $conn, "SELECT * FROM Table_1"); if ($stmt) { $rows = sqlsrv_has_rows( $stmt ); if ($rows === true) echo "There are rows. <br />"; else echo "There are no rows. <br />"; } ?> SEE ALSO
sqlsrv_num_rows(3), sqlsrv_query(3). PHP Documentation Group SQLSRV_HAS_ROWS(3)
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