英語の原文を検索 (3.x)3.xSQL FunctionsScalar FunctionsSystem FunctionsCONNECTION_IDこのページの見出しCONNECTION_IDDescription Get the connection number of the current sql client. Syntax CONNECTION_ID() Return Value The connection number of the current sql client. Examples select connection_id(); +-----------------+| connection_id() |+-----------------+| 549 |+-----------------+