Multiple Statements with MySQL and JDBC

May 16, 2005

Cameron Childress pointed out the allowMultiQueries setting in the MySQL JDBC driver on the CFGURU list. It is set to false by default to protect you from SQL Injection attacks. When set to true MySQL will allow multiple SQL statements (separated by a semi-colon) to be executed in a single CFQUERY tag. If you need to run multiple statements in a single CFQUERY, Dave Watts suggested creating another datasource with this setting turned on, which is only to be used when your running multiple statements.

But don't let this stop you from using prepared statements with CFQUERYPARAM, just because MySQL is safe by default - it is still a best practice, adds performance and type safety. Using allowMultiQueries=false will only prevent a very small subset of SQL Injection attacks.

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