Sqlite View : Add a column based on some other column
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Published on 2010-05-31T11:33:27Z
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2010/05/31
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Hi,
I have two tables
Employee
ID | Name | Department
----------------------
121 |Name1 | dep1
223 |Name2 | dep2
Assignment
ID | EID|
---------
1 |121
2 |223
3 |121
[other columns omitted for brevity]
The table assignment indicates which is work is assigned to whom.EID is a foriegn key to the table Employee.Also it is possible to have two work assigned to the same employee.
Now i want to create a view like this
EID | Assigned
--------------
121 |true
333 |false
Assigned column should be calculated based on the entries in the Assignment table.
So far i am only successful in creating a view like this
EID | Assigned
--------------
121 |2
333 |0
using the command
CREATE VIEW "AssignmentView" AS SELECT distinct ID ,(select Count(*) from Assignment where Assignment.EID = Employee.ID) as Assigned FROM Employee;
Thanks
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