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名词解释题
SQL
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注意:基本操作题为4道SQL题,请将每道题的SQL命令粘贴到sql al.txt文件,每条命令占一行,第1道题的命令是第1行,第2道题的命令是第2行,以此类推;如果某道题没有做,相应行为空。在考生文件夹下完成下列操作:(1)利用SQL SELECT命令将表stock sl.dbf复制到sto,ck bk.dbf。(2)利用SQL INSERT命令插入记录("600028",4.36,4.60,5500)到stock bk.dbf表。(3)利用SQL UPDATE命令将stock_bk.dbf表中“股票代码”为“600007”的股票“现价”改为8.88。(4)利用SQL DELETE命令删除stock_bk.dbf表中“股票代码”为“600000”的股票。
考题
Which statement correctly describes SQL and /SQL*Plus?()A、Both SQL and /SQL*plus allow manipulation of values in the database.B、/SQL* Plus recognizes SQL satement and sends them to the server; SQL is the Oracle proprietary interface for executing SQL statements.C、/SQL* Plus language for communicating with the Oracle server to access data; SQL recognizes SQL statements and sends them to the server.D、/SQL manipulates data and table definition in the database; /SQL* Plus does not allow manipulation of values in the database.
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判断题SQL注入,是开发者在代码中使用SQL语句时,要先生成SQL语句,然后调用函数执行这条SQL语句。如果错误地直接将用户输入拼接到SQL语句中,就有可能产生非预期的结果,从而将用户输入当作SQL语句执行。A
对B
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单选题Which statement correctly describes SQL and /SQL*Plus?()A
Both SQL and /SQL*plus allow manipulation of values in the database.B
/SQL* Plus recognizes SQL satement and sends them to the server; SQL is the Oracle proprietary interface for executing SQL statements.C
/SQL* Plus language for communicating with the Oracle server to access data; SQL recognizes SQL statements and sends them to the server.D
/SQL manipulates data and table definition in the database; /SQL* Plus does not allow manipulation of values in the database.
考题
填空题SQL的含义是()。
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