Consider the CHECK TABLE command.
In which two situations should this command be used? (Choose two.)
A. to find out why a query takes a long time to execute on a given table
B. to make sure a table has no structural problems
C. to improve performance by updating index distributing statistics on InnoDB tables
D. to repair table structure problem
E. to make sure that no table indexes are corrupted
Answer: BE
确保表格没有结构性问题
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