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如何創建一個功能,限制用戶只能看到工資爲1,500或更低的員工?舉個例子:如果我進入Oracle安全策略
SQL> SELECT * FROM employee;
EMPNUMB EMPNAME STARTDATE ENDDATE SALARY EMPCITY DESCRIPTION
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01 Jason Martin 25-JUL-96 25-JUL-06 1234.56 Geelong Programmer
08 James Cat 17-SEP-96 15-APR-02 1232.78 Melbourne Tester