Which Should You Use: VARCHAR or NVARCHAR?
You’re building a new table or adding a column, and you wanna know which datatype to use: VARCHAR or NVARCHAR?
2025-11-03
DataTypes
2025-10-08
378 reads
2025-10-01
350 reads
2025-09-29
729 reads
2024-08-28
486 reads
2024-03-08
490 reads
Comparing SQL Server Datatypes, Size and Performance for Storing Numbers
When more than one numeric SQL Server data type may be suitable for a field in a project, which data type should you choose and what are the implications for SQL Server performance?
2014-09-16
9,167 reads
All datatypes basics in SQL Server 2008R2.
What is completed datatypes in sqlserver and how it works in Real time.
2014-10-10 (first published: 2014-09-06)
1,508 reads
13 Questions about SQL Server Data Types You were Too Shy to Ask
Although SQL Data Types seem to cause a lot of grief for database developers and can be tricky in their use, we seem to be expected to know all about them, and so it is embarrassing to ask questions about them in forums. Rob Sheldon continues in his mission to answer all those questions that we hesitate to ask.
2014-07-21
17,910 reads
Comparing Different Data Types
Comparing columns of different data types can be a drain on resources, as well as our sanity. This is a look into a few strategies for dealing with implicit conversions.
2014-05-19
10,387 reads
Blogs
PASS Data Community Summit 2026
By Steve Jones
Yesterday was the first day of sessions at the PASS Data Community Summit (after...
T-SQLTuesday 204: Are blogs still relevant?
This month’s blogging party is hosted by Jeff Ianucci – his challenge is to...
Are Blogs Still Relevant? I Think They Still Are.
As for me, I'll keep writing whenever time permits. I don't expect every post...
Forums
Pay for Performance
Comments posted to this topic are about the item Pay for Performance, which is...
Switching Schemas I
Comments posted to this topic are about the item Switching Schemas I
Enforcing Unique Customer Emails When Duplicates Already Exist
Comments posted to this topic are about the item Enforcing Unique Customer Emails When...
Question of the Day
Switching Schemas I
I run this query:
SELECT s.name AS schemaname , o.name AS objectname FROM sys.objects o INNER JOIN sys.schemas s ON s.schema_id = o.schema_id WHERE o.name = 'Beer'I get one row back for an object named dbo.beer. There is an ETL schema and both of these are nonpartitioned tables. I run this code:
ALTER TABLE dbo.beer switch TO etl.beerWhat happens? See possible answers