When do you need data partitioning? The data you see in relational database may need such a strategy if the volume is huge, for instance the data to store event-log information having the schema such as: [Id] INT (make this primary key clustered), [Unit_Id]
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How can you calculate size of an index in a database whenever a capacity planning exercise if performed? By default the size allocated for each user objects depends on the user application and on the amount of space that is created by the application
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