To maintain performance of tables having variable length rows, which statement is used?(a) MAINTAIN TABLE(b) BALANCE TABLE(c) ADJUST TABLE(d) OPTIMIZE TABLEI got this question by my school principal while I was bunking the class.My enquiry is from Choosing Data Types for Efficient Queries in chapter Query Optimization of MySQL

To maintain performance of tables having variable length rows, which s

1.	To maintain performance of tables having variable length rows, which statement is used?(a) MAINTAIN TABLE(b) BALANCE TABLE(c) ADJUST TABLE(d) OPTIMIZE TABLEI got this question by my school principal while I was bunking the class.My enquiry is from Choosing Data Types for Efficient Queries in chapter Query Optimization of MySQL
Answer» The correct option is (d) OPTIMIZE TABLE Best explanation: In the VARIABLE LENGTH ROWS, there is more FRAGMENTATION of the table on which many DELETES or updates are performed. OPTIMIZE TABLE is run periodically to maintain performance.

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