题目内容

以下哪个是常用的MySQL JDBC驱动程序?()Which of the following is a commonly used MySQL JDBC driver?()

A. com.mysql.cj.jdbc.Driver
B. mysql.com.cj.jdbc.Driver
C. com.mysql.JDBCDriver
D. com.mysql.jdbc.cj.jDriver

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在JDBC中,要实现事务的回滚,可以调用Connection的方法()。In JDBC, to roll back a transaction, you can call the connection method ().

A. restore()
B. goback()
C. commit()
D. rollback()

在MySQL数据库中,以下哪条语句能获得前10条记录?()In MySQL database, which of the following statements can obtain the first 10 records?()

A. select * from mytable top 10 ;
B. select * from mytable 10 top;
C. select * from mytable limit 10;
D. select * from mytable 10 limit ;

以下哪个表示预编译语句对象?()Which of the following represents a precompiled statement object?()

A. PrecompileStatement
B. PrecompiledStatement
C. PrepareStatement
D. PreparedStatement

判断(2分)内部信息是指由企业外部产生,对企业的生产经营管理具有一定影响作用的信息。( )

A. 对
B. 错

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