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 Auto incrementing field till a certain condition		  Reply to Topic
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conqueror123
Starting Member

India
2 Posts
Posted - 10/13/2012 :  10:02:07  Show Profile  Reply with Quote
Hi guys,
I have the following table
SNo Value Item
where Sno is a column which exists in another table also. Right now , what I need is a self incrementing field which will go on incrementing if the value of sno is a constant and then get back to 0 and start incrementing again once the value of sno changes. IS there any way to do this?
Edited by - conqueror123 on 10/13/2012 10:02:40

sunitabeck
Flowing Fount of Yak Knowledge

5155 Posts
Posted - 10/13/2012 :  13:33:49  Show Profile  Reply with Quote
I am only vaguely following what you are asking. Are you describing what should happen when you insert anew row into the table? Can you post some sample data and show examples of the conditions under which a value should be icremented and conditions under which it should be 0?
Edited by - sunitabeck on 10/13/2012 13:34:36
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conqueror123
Starting Member

India
2 Posts
Posted - 10/13/2012 :  20:56:42  Show Profile  Reply with Quote
Lets say I have four columns:
SNO|Value |Item | AUtoIncrementingField
1___344_____a________0
1___345_____b________1
1___346_____c________2
2___568_____d________0

So when I say insert into this table , and the value of SNO becomes two the value of the auto incrementing field should go back to 0. Is there any inbuilt way of doing this, or writing some code on top of mysql to achieve this. If not what other option do I have to uniquely identify each value/item belonging to a certain value of sno?
Edited by - conqueror123 on 10/13/2012 21:01:27
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