Implementation of partition switching within SSIS
In the third part of a series on loading a partitioned data warehouse efficiently, we see how SSIS can be used to perform the ETL tasks.
2014-07-15
6,822 reads
Sean Woehrle
- Interests: SSAS, SSIS, SQL Server, Oracle, DB2, Greenplum data warehousing. Also saxophone! Please see my Band's facebook page under contact details.
Partitioning Data in a Multi-tenant Data Warehouse Solution
Part two of our series looks at the partitioning strategy to separate customers' data, providing security and performance.
2014-04-22
6,226 reads
SaaS and Multi-tenancy Models
If you need to architect a multi-tenant Analysis Services project, what are your options? This piece from Sean Woehrle shows four options and explains why he picked a particular one.
2014-03-11
6,071 reads
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Question of the Day
Checking Identities
The DBCC CHECKIDENT command is used when working with identity values. I have a table with 10 rows in it that looks like this:
TravelLogID CityID StartDate EndDate 1 1 2025-01-11 2025-01-16 2 2 2025-01-11 2025-01-16 3 3 2025-01-11 2025-01-16 4 4 2025-01-11 2025-01-16 5 5 2025-01-11 2025-01-16 6 6 2025-01-11 2025-01-16 7 7 2025-01-11 2025-01-16 8 8 2025-01-11 2025-01-16 9 9 2025-01-11 2025-01-16 10 10 2025-01-11 2025-01-16The docs for DBCC CHECKIDENT say this if I run with only the table parameter: "If the current identity value for a table is less than the maximum identity value stored in the identity column, it is reset using the maximum value in the identity column. " I run this code:
DELETE dbo.TravelLog WHERE TravelLogID >= 9
GO
DBCC CHECKIDENT(TravelLog, RESEED)
GO
INSERT dbo.TravelLog
(
CityID,
StartDate,
EndDate
)
VALUES
(4, '2025-09-14', '2025-09-17')
GO
What is the identity value for the new row inserted by the insert statement above? See possible answers