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200-530 · Question #438
Symonds works as a Database Administrator for Blue Well Inc. The company uses an Oracle database. The database contains a table named Employees. Following is the structure of the table: EmployeeID…
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Databases & SQL
Question
Symonds works as a Database Administrator for Blue Well Inc. The company uses an Oracle database. The database contains a table named Employees. Following is the structure of the table: EmployeeID NUMBER (5) PRIMARY KEY EmployeeName VARCHAR2 (35) NOT NULL Salary NUMBER (9, 2) NOT NULL Commission NUMBER (4, 2) DepartmentID NUMBER (5) Symonds queries the Employees table with the following statement: SELECT e.EmployeeName, m.Salary FROM Employees e, Employees m WHERE e.EmployeeID = m.EmployeeID; Which of the following types of joins is used in the statement?
Options
- AOuter join
- BEquijoin
- CSelf join
- DCross join
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Topics
#self join#SQL joins#table aliases#equijoin