单选题语句select ROUND（45.953，-1），TRUNC（45.936，2）from dual；的结果是（）。A 46 and 45B 46 and 45.93C 50 and 45.93D 50 and 45.9

第1题

语句select LAST_DAY(‘2011－05－01’)from dual;的结果是()。A.2011-05-28B.2011-05-31C.2011-04-30D.2011-05-07

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第2题

语句select ROUND(45.953,－1),TRUNC(45.936,2)from dual;的结果是()。A.46 and 45B.46 and 45.93C.50 and 45.93D.50 and 45.9

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第3题

哪些是正确的 like 运算表达式？A.select * from net_46 where s_name like ’晓’B.select * from net_46 where s_name like ’&晓&’C.select * from net_46 where s_name like ’$晓$’D.select * from net_46 where s_name like ’%晓%’

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第4题

Evaluate the SQL statement:SELECT ROUND(45.953, －1), TRUNC(45.936, 2)FROM dual;Which values are displayed? ()A. 46 and 45B. 46 and 45.93C. 50 and 45.93D. 50 and 45.9E. 45 and 45.93F. 45.95 and 45.93

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第5题

Evaluate the SQL statement:SELECT ROUND(TRUNC(MOD(1600,10),－1),2)FROM dual;What will be displayed? ()A. 0B. 1C. 0.00D. An error statement

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第6题

显示本月月末的日期()A.select last_date(sysdate) from dual;B.select finally_day(sysdate) from dual;C.select last_day(sysdate) from dual;D.select tail_day(sysdate) from dual;

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第7题

语句SELECT‘ACCP’ FROM DUAL 的执行结果是（）。A、ACCPB、XC、编译错D、提示未选中行

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