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Joining Results of two Datasets Avoiding Dulicates

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poncho posted on 01-28-2010 8:11 AM

I want to join the results given by two queries and avoid duplicates in this is there any way to do so.

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Ashish Gilhotra replied on 01-28-2010 8:13 AM
You can use UNION to join results of two datasets. Hope this will help
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poncho replied on 01-28-2010 8:47 AM

Hi Ashish

Thanks for help but i am getting this error not sure what is this as i am a newbie to SQL. here is the error...

All queries combined using a UNION, INTERSECT or EXCEPT operator must have an equal number of expressions in their target lists.

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visakhm replied on 01-29-2010 2:56 AM

the error suggests that you need to have same number of columns on all the queries separated by UNION. Also datatypes of corresponding columns in queries should be same (i.e if 3rd column in first query is int then 3rd column in other queries should also be int or some value which can be casted to int.

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Madhivanan replied on 01-29-2010 3:10 AM

poncho:

Hi Ashish

Thanks for help but i am getting this error not sure what is this as i am a newbie to SQL. here is the error...

All queries combined using a UNION, INTERSECT or EXCEPT operator must have an equal number of expressions in their target lists.

 

Post the code you used

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