Can I Execute Multiple Queries with Semicolons Using MySQL Connector/J?

Execute Multiple Queries with MySQL Connector/J and Semicolons

Executing multiple queries separated by semicolons with MySQL Connector/J is generally not supported because it violates the JDBC specification.

Semicolons typically serve as statement terminators in command line or script input, but they are not part of the statement syntax in most databases, including MySQL. Attempting to execute multiple queries using semicolons with MySQL Connector/J will result in a syntax error.

Instead, you should execute each query separately using multiple statement prepare or execute calls. However, MySQL Connector/J provides an optional solution for executing multiple queries with semicolons using the allowMultiQueries connection property.

This property enables a non-standard MySQL behavior that allows multiple queries in a single execute call. However, using this option is not recommended as it:

• Violates the JDBC specification
• Reduces code portability
• May lead to unexpected behavior in other databases

Therefore, it is generally advisable to avoid using semicolons to execute multiple queries with MySQL Connector/J and instead use separate execute calls for each query.

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