Track source dates when loading a data warehouse
A primer on how to reduce network and source system load when reading a relational source into the data warehouse.
2012-07-30
5,826 reads
Magarity Kerns
HASHBYTES can help quickly load a Data Warehouse
Data warehouse loads can be time consuming - this method can be used in some instances to help speed things up.
2010-04-14
16,946 reads
Source system pre-integration analysis
Initial analysis of a new source system can be quite time consuming to manually examine tables and columns to determine which even have worthwhile values in the first place. Running this script against the current database will generate useful information for all the columns of all the tables. Details include data types with varchar lengths, […]
2005-06-07
451 reads
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Question of the Day
An Unusual Identity
What values are returned when I run this code?
CREATE TABLE dbo.IdentityTest2
(
id NUMERIC(10,0) IDENTITY(10,10) PRIMARY KEY,
somevalue VARCHAR(20)
)
GO
INSERT dbo.IdentityTest2
(
somevalue
)
VALUES
( 'Steve')
, ('Bill')
GO
SELECT top 10
id
FROM dbo.IdentityTest2 See possible answers