Updating records in multiple tables using web application

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I have a doubt.

In my application (web application), when user click on the save button I need to update records in 5 table , during this process other users should not allow to update records in the same 5 tables.

Once the first user completed the process next user can proceed

my question is it require to implement multi threading?

Posted 20-Mar-11 21:23pm

Sridhar Patnayak

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Theingi Win · Answer 1 · 2011-03-20T21:47:00

Solution 2

You should use Transaction or Lock in your database.
Can study these links about
Transaction and Lock.

Best Regard,
Theingi Win

Posted 20-Mar-11 21:47pm

Theingi Win

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Sridhar Patnayak 21-Mar-11 3:51am

Theingi
I think it is not posible, because if we maintain lock then while updating records
if connection failed, lock will not update, so that another process does not enter

Wendelius · Answer 2 · 2011-03-20T22:31:00

Are you sure that other people cannot modify the same tables or the same rows?

Typically this requirement is defined on row level and this is taken care by the dbms which uses locks to prevent simultaneous modifications on the same rows.

So as Theingi Win already pointed out, as a programmer you're responsible in wrapping all the necessary DML (insert, update...) operations into a single transaction.

OriginalGriff · Answer 3 · 2011-03-20T21:45:00

Solution 1

"my question is it require to implement multi threading?"

No.
"Please describe me in detail"

No, it is not required to implement multi threading in order to update records in 5 tables.

Is that detailed enough for you?

Posted 20-Mar-11 21:45pm

OriginalGriff

Updated 20-Mar-11 22:08pm

v2

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Sridhar Patnayak 21-Mar-11 3:51am

Please describe me in detail

OriginalGriff 21-Mar-11 4:08am

Answer updated