在Oracle中,有一个名为seq的序列对象,以下语句能返回序列值但不会引起序列值增加的是()A、select seq.ROWNUM from dualB、select seq.ROWID from dualC、select seq.CURRVAL from dualD、select seq.NEXTVAL from dual

在Oracle中,有一个名为seq的序列对象,以下语句能返回序列值但不会引起序列值增加的是()

  • A、select seq.ROWNUM from dual
  • B、select seq.ROWID from dual
  • C、select seq.CURRVAL from dual
  • D、select seq.NEXTVAL from dual

相关考题:

查找教师表中教师最高的工资值,下列SQL语句正确的是A.SELECT MAX(工资) FROM 教师表B.SELECT MIN(工资) FROM 教师表C.SELECT AVG(工资) FROM 教师表D.SELECT SUM(工资) FROM 教师表

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有SQL语句:SELECT DISTINCT系号FROM教师WHERE 工资=ALL (SELECT 工资FROM教师WHERE系号=\02\) 与如上语句等价的SQL语句是A.SELECT DISTINCT系号FROM教师WHERE工资=(SELECT MAX(工资)FROM教师WHERE 系号="02")B.SELECT DISTINCT系号FROM教师WHERE工资=(SELECT MIN(工资)FROM教师WHERE 系号="02")C.SELECT DISTINCT系号FROM教师WHERE工资=(ANY(SELECT(工资)FROM教师WHERE 系号="02")D.SELECT DISTINCT系号FROM教师WHERE工资=(SOME (SELECT(工资)FROM教师WHERE 系号="02")

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