Columnstore indexes instead store each column of the table ... in approximately 900 row batches, as opposed to line by line (SQL Server 2019 adds batch mode to row-based tables).

SQL Server now provides you with a choice. You can build columnstore indexes on your big data warehouse tables and get the benefits of column store technology and batch mode processing without giving ...

The index definitions are bold-faced. Note that the BUCKET_COUNT should typically be set between one and two times the number of unique index key values. SQL Server will use the hash index on the ...

Learn about designing efficient indexes in SQL Server and ... or by row, based on a partition function. The partition function defines how each row is mapped to a set of partitions based on the values ...

SQL Server 2012 ... Columnstore indexes, as their name implies, store indexed (and always compressed) data contiguously in columns, rather than in standard format where the data is stored contiguously ...

Use them for high cardinality columns that are used as filters in queries returning a small number of rows. Don’t be heavy handed with secondary indexes ... combines a SQL Server relational ...