Both Serializable and Snapshot isolation levels exclude concurrency issues such as Dirty Reads, Non-repeatable Reads and Phantoms. However the way in which they deal with such issues is quite different. In this article, Sergey Gigoyan explains the main differences between the two.
2016-01-13
3,453 reads
The first 100 people get to decide the data set. Give us the first thing you think of.
2016-01-13
12,457 reads
How can you fix a .NET Framework 3.5 error while installing SQL Server 2014?
2016-01-12
17,984 reads
There are several ingenious ways of using SQL References to enforce integrity declaratively. Declarative Referential Integrity (DRI) is more effective than using procedural code in triggers, procedures or application layers because it uses the SQL paradigm, thereby making optimisation easier and providing clearer expression of the rules underlying the data. Joe Celko explains.
2016-01-12
6,270 reads
Both management and various departments rely on data reports to help guide their business decisions. Rob Gravelle presents ten open source and commercial report generation tools for MySQL and other relational databases.
2016-01-11
4,964 reads
SQL Server 2016 comes with several new features including new DAX functions to enrich the functionality, Daniel Calbimonte takes a look.
2016-01-08
4,503 reads
At last, SQL Server has caught up with other RDBMSs by providing a useful measure of JSON-support. It is a useful start, even though it is nothing like as comprehensive as the existing XML support. For many applications, what is provided will be sufficient. Robert Sheldon describes what is there and what isn't.
2016-01-07
9,007 reads
2016-01-06
195 reads
It is important to only allow authorized individuals access to confidential data. Therefore when setting up an Always Encrypted table it is important to consider splitting configuration tasks between multiple individuals/groups to improve security. Follow Greg Larsen as he shows how to setup up SQL Server Always Encrypted tables where database administrators can’t see the clear text confidential data.
2016-01-06
4,919 reads
Paul White spends some time optimizing update queries in order to explore some SQL Server internals.
2016-01-05
7,525 reads
By Steve Jones
I went to sleep while reading a Kindle book on my phone. I know...
A conversation with Jan Laš, CIO at HOPI, about what deploying a data agent...
It's time for T-SQL Tuesday #198! This month's topic is change detection. The post T-SQL...
Komplek Perkantoran Mitra Krekot, Jl. Samanhudi No.21 1, RT.1/RW.7, Ps. Baru, Kecamatan Sawah Besar,...
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Jl. Pintu Air Raya No.36 Q, Ps. Baru, Kecamatan Sawah Besar, Kota Jakarta Pusat,...
I have this data in a table called dbo.NFLTeams
TeamID TeamName City YearEstablished ------ -------- ---- --------------- 1 Cowboys Dallas 1960 2 Eagles Philadelphia 1933 3 Packers Green Bay 1919 4 Chiefs Kansas City 1960 5 49ers San Francisco 1946 6 Broncos Denver 1960 7 Seahawks Seattle 1976 8 Patriots New England 1960If I run this code, how many rows are returned?
SELECT TOP 2
json_objectagg('Team' : TeamName)
FROM dbo.NFLTeams;
See possible answers