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there are indexes on a table as
index1 with col1, col2
index2 with col2
index3 with col1,col2,col3. if i run a query with col1='100' which index will be used and why



there are indexes on a table as index1 with col1, col2 index2 with col2 index3 with col1,col2,co..

Answer / nikky

full table scane, no index will work

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