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Index Build strategy in SQL Server - Part 1: offline, serial, no partitioning

Builder (write data to the in-build index) | Sort (order by index key) | Scan (read data from source) In order to build the b-tree for the index we have to first sort the data from source. The flow is to scan the source, sort it (if possible - in memory*), then build the b-tree from the sort. Why do we need to

Filed under: Database,SQL | On : 2006 Nov 20 | From: SQL Query Processing Team |

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Index Build strategy in SQL Server - Part 3: Offline Serial/Parallel Partitioning

There are two main categories of partitioned index build Aligned (when base object and in-build index use the same partition schema) Not- Aligned (when

Index Build strategy in SQL Server - Part 3: Offline Serial/Parallel Partitioning (Aligned partitioned parallel index build)

Aligned partitioned parallel index build In case of parallel build we scan and sort partitions in parallel and the actual number of sort tables existing

SYSK 195: Speeding Up Index Creation

In SQL Server 2000 and 2005 when you create or rebuild an index you can set SORT_IN_TEMPDB option to ON to use TempDB to store the intermediate sort results

Index Build strategy in SQL Server - Part 2: Offline, Parallel, No Partitioning (Non stats plan (no histogram))

Build (serial) (write data to the in-build index) X (Merge exchange) \ Sort Sort Sort (order by index key) Scan Scan Scan(read data from source) When histogram

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