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Showing posts from August, 2020

Azure SQL Datawarehouse

 Data Types:  Tips: only use small data types. Avoid defining columns to be a large default length.don't use nvarchar if you dont ned unicode. Table Types: clustered  columnstore : great for readonly large data. Default data type used by azure sql datawarehouse uses. High compression in data. Heap: for storing temporary data  and no order in data. fast to load. clustered B-tree Index:   index stored in a way data being indexed is stored Table Partitioning: To improve query performance, partitioning done. Can be done on basis of date columnstore.