Question

I have a table which has the following columns

Id         (int)
UniqueId   (string)
CategoryId (int)

Id and UniqueId are unique for each record.

I want to find a record based on UniqueId value, and i also have the CategoryId value.

Is it faster to specify both filters in the SELECT statement, for example:

SELECT * FROM [Products] Where [UniqueId] = 'product' AND [CategoryId] = 4

Or should i just use the [UniqueId] filter?

The table has a lot of records

EDIT :

I don’t have the [Id] column of the product

Answer 1

I suggest,Just create a non-clustered index on uniqueid and just use that field as filter