Can I execute multiple queries separated by semicolons with MySQL Connector/J?

Executing Multiple Queries Separated by Semicolon with MySQL Connector/J

Query Execution

In SQL, multiple queries can often be separated by semicolons to execute them consecutively. However, when using MySQL Connector/J, executing multiple queries in this manner is not supported.

Reason for Exception

When attempting to execute multiple queries separated by semicolons, an exception occurs because MySQL Connector/J adheres to the JDBC specification, which dictates that a single statement prepare or execute should contain only one actual statement.

Alternative Solution

To execute multiple queries in sequence, it's necessary to use separate JDBC executes. For example:

statement.execute("select fullName from user where user_id=1");
statement.execute("select fullName from user where user_id=2");

Non-Standard Approach

While executing multiple queries separated by semicolons is generally not supported in MySQL Connector/J, there is an exception. The allowMultiQueries connection property can be set to true to enable this behavior. However, this approach is not compliant with the JDBC API and may affect portability.

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