sql - Searching for record(s) in a table that has over 200 Million Rows -



sql - Searching for record(s) in a table that has over 200 Million Rows -

which type of index should used on table? inserted (one month) empty table. place non clustered composite index on 2 of columns. wondering if merging 2 fields 1 increment performance when searching. or not matter? should working identity column has primary key clustered index?

you should index field(s) used in clause people query table. don't worry primary key - has index.

sql

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