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Gerald30
Starting Member

Philippines
46 Posts

Posted - 10/10/2012 : 21:43:07

Hello All

Its me again, I don`t know if I can explain this right but how can I do this in MSSQL.

Example I have this Employee Log Table with the following columns.

ID Name Log Count
1 Mark 1
2 Adrew 1
3 Mark 2

Now when I will insert again the Name Mark with Log Count 1 database should not allow because it will be duplicate.

Please help me.

Thanks in advance.

khtan
In (Som, Ni, Yak)

Singapore
16746 Posts

Posted - 10/10/2012 : 21:48:05

ID is the primary key in the table ?

KH
Time is always against us

bandi
Flowing Fount of Yak Knowledge

India
1451 Posts

Posted - 10/11/2012 : 00:30:32

Hi,

1) If ID is primary key, then ALTER yourTable by adding composite unique key of Name and LogCount

ALTER TABLE EmployeeLog ADD CONSTRAINT Emp_UK UNIQUE(Name, LogCount)

2) If ID is not a Primary key column, then add composite primary key of Name and LogCount
--
Chandu

Edited by - bandi on 10/11/2012 00:32:26

Gerald30
Starting Member

Philippines
46 Posts

Posted - 10/11/2012 : 05:32:17

Thank you very much guys.

ID is the PK so I use the composite unique.

Thanks again

bandi
Flowing Fount of Yak Knowledge

India
1451 Posts

Posted - 10/11/2012 : 05:55:06