SQL study notes 07 Geek time SQL must know 50 lectures

30 丨 Lock: What is pessimistic lock and optimistic lock?

31 丨 Why do most RDBMS support MVCC?

32 丨 How does the query optimizer work?

33 丨 How to use performance analysis tools to locate the cause of slow SQL execution?

35 丨 What is the role of database master-slave synchronization, how to solve the problem of data inconsistency?

36 丨 How to restore data if Binlog is not backed up and Binlog is not used?

37 丨 SQL Injection: How is your SQL injected?

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Origin blog.csdn.net/caofengtao1314/article/details/105485401