單項選擇題

You want a record of all queries that are not using indexes. How would you achieve this?（）

A.By enabling the Slow Query Log because all queries that are not using indexes will be logged automatically
B.By enabling the Error Log because not using indexes is an error
C.By enabling the Slow Query Log and using the – log-queries-not-using-indexes option
D.By enabling the Error Log and using the – log-queries-not-using-indexes option

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多項選擇題

Full Atomicity, Consistency, Isolation, Durability (ACID) compliance is a necessity for a new application, which heavily reads and writes data.
This requires the following config file options: Sync_binlog=1 Innodb_flush_log_at_trx_commit=1 Innodb_doublewrite=1 However, this configuration is expected to introduce disk I/O overhead.
What three changes will reduce disk I/O overheads?（）

A.Use of soft links for database directories on the same physical disk
B.Use of delay_key_write=ON for batch index update
C.Allocation of RAM to the buffer pool such that more of the data can fit in RAM
D.Placement of InnoDB log files and datadir on separate physical disks
E.Use of separate directories on the same physical disk for log files and data files

單項選擇題

Consider the following table:

Which method should used to add a new g201305 partition to the table?（）

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

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You want a record of all queries that are not using indexes. How would you achieve this?（）

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Consider the following table: Which method should used to add a new g201305 partition to the table?（）

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Consider the following table:

Which method should used to add a new g201305 partition to the table?（）