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Record open by another user

Posted on 2016-10-03
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Last Modified: 2016-10-03
Hello,
Is there any way we can Check whether in sql server the same record is opened by another user on another machine ?


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Question by:RIAS
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by:Vitor Montalvão
Vitor Montalvão earned 500 total points
ID: 41826359
Is there any way we can Check whether in sql server the same record is opened by another user on another machine ?
As far as I know you can't. Only way that I can think of is to have a column set to true every time somebody open the record and set it to false when nobody else has the record opened.
Ofc that if the record is locked then a SQL error will be raised when some other process is trying to read the record.
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by:RIAS
ID: 41826363
And what happend if two users are trying to add the same new record at same time ?
Can anything be done about that
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by:Vitor Montalvão
ID: 41826365
And what happend if two users are trying to add the same new record at same time ?
It depends on your Primary Key definition and the existence of any Unique Index. If you have both or at least one of kind of those indexes then it will raise an error and the second record will be rolled back.
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by:RIAS
ID: 41826377
So it is all handled by default sql server setting.No settings are required from my side?
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Vitor Montalvão earned 500 total points
ID: 41826413
No settings are required from my side?
If you have corrected set the Primary keys and unique keys then the database engine will raise the errors when a duplicate records is being tried to be inserted.
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by:RIAS
ID: 41826424
Very clear and brilliant solution provided as always!
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