2010-11-25
3,682 reads
2010-11-25
3,682 reads
2010-04-01
4,443 reads
2010-04-01
3,279 reads
Insider rumours and gossip from the murky world of the Database Industry, and from the colourful characters that inhabit it.
2010-04-01
2,611 reads
A deep dive into the implementation of indexes in SQL Server 2008 R2. This is information that you must know in order to tune your queries for optimum performance. Partial scans of indexes are now possible!
2010-04-01
8,188 reads
2010-04-01 (first published: 2010-03-31)
4,375 reads
2009-12-25
3,675 reads
2009-07-03
5,239 reads
2009-04-01
5,354 reads
Too many authors in the field of relational theory have neglected the concept of Cardinal Reciprocity. This can cause a number of subtle problems with database design in terms of its derivability, redundancy, and consistency. . Increasingly, this little-understood aspect of relational theory, that emphasises the cardinality of the attributes of tuples in a relation and the reciprocity with isomorphic foreign key restraints, is becoming a hot forum topic.
2009-04-01
2,846 reads
By gbargsley
In SQL Server environments where transactional replication runs alongside Always On Availability Groups (AGs),...
Disable the sa login in SQL Server (and sleep better)If you run SQL Server...
By Chris Yates
Change is inevitable. What separates thriving organizations from those that falter is not the...
Comments posted to this topic are about the item Create an HTML Report on...
Comments posted to this topic are about the item Be Wary of Data
Comments posted to this topic are about the item Locking Hierarchies
You have a table [dbo].[orders] without a Clustered Index (Heap). The table does not have any other nonclustered indexes! You rund the following command in Read Committed Isolation Level:
SELECTo_orderdate, o_orderkey, o_custkey, o_storekey FROMdbo.orders WHEREo_orderkey = 3877;