單項(xiàng)選擇題

Which statement is true about FLUSH LOGS command?（）

A.It requires the RELOAD, FILE, and DROP privileges
B.It closes and reopens all log files
C.It closes and sends binary log files to slave servers
D.It flushes dirty pages in the buffer pool to the REDO logs

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單項(xiàng)選擇題

Identify a performance impact when using the Performance Schema.（）

A.There is no impact on performance
B.The overhead depends on the settings of the Performance Schema
C.There is an overhead for querying the Performance Schema but not for having it enabled
D.There is a constant overhead regardless of settings and workload

單項(xiàng)選擇題

You are having problems with connections from a specific host (192.168.1.15) not closing down correctly.
You want to find the state of the threads from that host check for long-running queries. Which statement will accomplish this?（）

A.A
B.B
C.C
D.D

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Which statement is true about FLUSH LOGS command?（）

你可能感興趣的試題

Identify a performance impact when using the Performance Schema.（）

You are having problems with connections from a specific host (192.168.1.15) not closing down correctly. You want to find the state of the threads from that host check for long-running queries. Which statement will accomplish this?（）

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You are having problems with connections from a specific host (192.168.1.15) not closing down correctly.
You want to find the state of the threads from that host check for long-running queries. Which statement will accomplish this?（）