![]() ![]() Being disabled by default, the cache is activated by the cachePrepStmts Connection property.įor client-side statements, the tokenized statement structure can be reused in-between different preparing statement calls. To avoid preparing a statement multiple times, the MySQL driver offers a client-side statement cache. In a high-performance OLTP system, statement caching plays a very important role in lowering transaction latencies. If you enjoyed this article, I bet you are going to love my Book and Video Courses as well. I'm running an online workshop on the 4th of May about SQL Window Functions. This way, the driver can use a single request to fetch the result set. ![]() When the statement is prepared on the client-side, the bind parameter tokens are replaced with actual parameter values prior to sending the statement to the database server. To enable server-side prepared statement, the useServerPrepStmts property must be enabled. For this purpose, some database systems don’t default to server-side prepared statements and execute a client-side statement preparation instead. ![]() If the data access logic doesn’t cache prepared statements, the extra database round-trip can actually hurt performance. The executor takes the plan and builds the associated result set.
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