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TABLE PARTITIONING IN SQL SERVER 2012 ENTERPRISE EDITION HOW TODoes anyone have any other idea of how to avoid dropping and recreating the FK references? So the next solution was to create a new table with the new partition scheme, copy the data over and rename it, the problem we ran into was that the FK references from other tables also got changed to reference the Old table when it was renamed, we had to rereate these as well. We attempted to try rebuilding the clustered index with the partition scheme we created but it doesn't allow an online rebuild because of some Varchar (max) fields in the table. ![]() Regarding partitioning an existing table, with a good amount of data about 37 mil rows in an OLTP Database. Partitioning itself is an Enterprise Edition feature. If it wasn't an Enterprise Edition, you wouldn't be able to create Partitioned Tables at all. "Finally, if you are concerned about the downtime required to perform this task and you are using SQL Server Enterprise Edition you could use the ONLINE=ON option of the CREATE INDEX statement to minimize any downtime for your application." Bear in mind that a clustered index actually IS the table itself. This is because NC indexes without exception include the key(s) of the cluster (which is the pointer to the actual row in the table). The correct way to do it is to first put the cluster on and then all the non-clustered indexes. To all people out there: Please, do not put non-clustered indexes on a table first and then a clustered index because if you do that, you'll have to rebuild the non-clustered indexes, so you'll be doing part of the work twice. I Cant do this with just an ALTER statement: In order to create a table on a partition you need to specify the Partition scheme during creation of a table. You are partition the indexes of a table. Thanks so much.Ĭorrect me if i am wrong but you are NOT Partition an Existing Sql Server table. I saw that ther is a wizard for partitioning, I am using Sql-Server 2014, can't find it.Įxcellent post. My question is what will happen to the data in this case, All the data for the table will move to the ne file group? If I create a seperate filegroup and partition scheme is create on the new file group and followed by the Clustered index on the Partition scheme. I just have a question that I have a large table in the PRIMARY file group. TABLE PARTITIONING IN SQL SERVER 2012 ENTERPRISE EDITION FULLFull 360 degree circle and back to the start. The only way to get the primary key aligned is to associate it with the partition scheme and to do that the partitioning column has to be added to the index. The table is partitioned but the primary key is not. What is does not mention is that partition switching will not work. The article's intent was to show how to and FK to a partitioned table. ![]() Great article but is missing some pretty important details. Here is the script that we can use in our scenario. Keep in mind that you may see some performance degradation while the index is being rebuilt using the ONLINE option. Finally, if you are concerned about the downtime required to perform this task and you are using SQL Server Enterprise Edition you could use the ONLINE=ON option of the CREATE INDEX statement to minimize any downtime for your application. ![]() Similarly, if our table had a clustered index defined, but it was defined on same column that we plan to partition the table on we could run the CREATE CLUSTERED INDEX statement with the DROP_EXISTING clause. If our table did not have a clustered index we could omit this step and just run the CREATE CLUSTERED INDEX statement. Since we are going to partition the table using a clustered index and our table already has a clustered index defined we'll need to drop this index first and recreate the constraint using a non-clustered index. Now that we have a partition scheme we can go ahead and partition our table. INNER JOIN sys.partition_range_values prf ON pf.function_id=prf.function_id INNER JOIN sys.partition_functions pf ON pf.function_id=ps.function_id CREATE PARTITION FUNCTION myDateRangePF (datetime)ĪS RANGE RIGHT FOR VALUES ('20110101', '20120101','20130101')ĬREATE PARTITION SCHEME myPartitionSchemeĪS PARTITION myDateRangePF ALL TO ()
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