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 ...

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 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 ...