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Limitations of SQL Server Express

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What are the limitations of SQL Server Express 2019?

Important limitations of the Express Version 2019Only one processor is used, but up to 4 processor cores. A database may have a maximum size of 10 GB. The SQL Server Agent service is not included. Full-text indexing and searching are only available in the "Express with Advanced Services" edition.

What are the limitations of SQL Server Express 2014?

The Express edition of SQL Server 2014(and later to 2019) limits the maximum database size to 10GB. But this restriction only applies to data files—the primary data file(. mdf) and the seconadry data file(. ndf), not to transaction Log files.

What are the limitations of SQL Express 2017?

As I previously expressed, SQL Server Express limits the maximum database size to 10GB, the memory to 1410 MB and regarding CPU, it only allows the lesser of one CPU socket or four cores. You need SQL Server Integration Services.

Is SQL Server Express good enough?

In general, I would say it is fine. If you can get a copy of Developer, I would recommend that route, but a great majority of your work can be done in Express. Express has basic Reporting, with Advanced Services. If you go beyond the basic Reporting in the product, you will have to move up.


There are a number of limitations, notably:

  • Constrained to a single CPU (in 2012, this limitation has been changed to "The lesser of one socket or four cores", so multi-threading is possible)
  • 1GB RAM (Same in 2008/2012)
  • 4GB database size (raised to 10GB in SQL 2008 R2 and SQL 2012) per database

http://www.dotnetspider.com/tutorials/SqlServer-Tutorial-158.aspx http://www.microsoft.com/sqlserver/2008/en/us/editions.aspx

With regards to the number of databases, this MSDN article says there's no limit:

The 4 GB database size limit applies only to data files and not to log files. However, there are no limits to the number of databases that can be attached to the server.

However, as mentioned in the comments and above, the database size limit was raised to 10GB in 2008 R2 and 2012. Also, this 10GB limit only applies to relational data, and Filestream data does not count towards this limit (http://msdn.microsoft.com/en-us/library/bb895334.aspx).


Another limitation to consider is that SQL Server Express editions go into an idle mode after a period of disuse.

Understanding SQL Express behavior: Idle time resource usage, AUTO_CLOSE and User Instances:

When SQL Express is idle it aggressively trims back the working memory set by writing the cached data back to disk and releasing the memory.

But this is easily worked around: Is there a way to stop SQL Express 2008 from Idling?


You can create user instances and have each app talk to its very own SQL Express.

There is no limit on the number of databases.


If you switch from Web to Express you will no longer be able to use the SQL Server Agent service so you need to set up a different scheduler for maintenance and backups.


It seems like the database size limitation has been increased to 10GB.. good new

http://blogs.msdn.com/b/sqlexpress/archive/2010/04/21/database-size-limit-increased-to-10gb-in-sql-server-2008-r2-express.aspx