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文件名称:Oracle SQL PLSQL练习题
文件大小:120KB
文件格式:DOC
更新时间:2011-12-02 14:07:04
Oracle SQL PLSQL 练习题 试题
Oracle SQL PLSQL练习60题,简要如下:
1. Oracle发出下列select语句:
SQL> select e.empno, e.ename, d.loc
2 from emp e, dept d
3 where e.deptno = d.deptno
4 and substr(e.ename, 1, 1) = ‘S’;
下列哪个语句是Oracle数据库中可用的ANSI兼容等价语句?
A.select empno, ename, loc from emp join dept on emp.deptno = dept.deptno where
substr(emp.ename, 1, 1) = ‘S’;
B.select empno, ename, loc from emp, dept on emp.deptno = dept.deptno where
substr(emp.ename, 1, 1) = ‘S’;
C.select empno, ename, loc from emp join dept where emp.deptno = dept.deptno and
substr(emp.ename, 1, 1) = ‘S’;
D.select empno, ename, loc from emp join dept on emp.deptno = dept.deptno and
substr(emp.ename, 1, 1) = ‘S’;
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