Microsoft
Software
Hardware
Network
Question : Check for Duplicates
I have two columns in my Table - Col1 Col2
Col1 and Col2 contain values that should be unique to the table - so no two rows alike - how can I check for this against both columns?
Answer : Check for Duplicates
Hi,
If your table do not have an index, you can use HAVING to do that, like this
select Col1, Col2, Count(1) from YOURTABLE
Group By Col1, Col2
Having Count(1) > 1
This will show you the duplicates.
Hope it helps
Random Solutions
auto run lightbox
Combobox values default
Help needed with iphone Configuration Utility, SSL certificates ,& SBS 2003
PHP String Concatenation Help
How can i select data with linq part by part of rows?
Ghost Multicasting/IGMP
PHP for loop - help with POST data
osx system no longer logging into windows domain
capture value of checked items in checklistbox
I need your advice in this class php