Database Detachments And File Permissions

Daniel Hutmacher looks at what happens when you detach a database:

On most database servers, the SQL Server service account is granted full control of the directories that host the database files. It goes without saying that the service account that SQL Server runs on should be able to create, read, write and delete database files. Looking at a sample database on my local server, the .mdf and .ldf files don’t actually inherit permissions from their folder, although the permissions are very similar to that of the folder.

This all makes sense once you read the explanation, but it’s not intuitive behavior.  Read Daniel’s gotcha near the end of the post.

Related Posts

Why Increase Cost Threshold For Parallelism

Randolph West explains why the default value of cost threshold for parallelism is too low at 5: Unfortunately, the default setting of 5 means that queries are likely to hit that threshold more often than not on modern hardware, and the optimizer is forced to look at parallel plans unnecessarily. A side-effect to this is […]

Read More

Effective Identities And Power BI Embedded

Angela Henry shows how you can use Power BI Embedded for row-level security even when the accessing users don’t have Power BI accounts: Now that you familiar with Row Level Security in Power BI, how do you make it work when you want to pass in your customer’s identifier because your customers don’t have Power […]

Read More

Categories

May 2016
MTWTFSS
« Apr Jun »
 1
2345678
9101112131415
16171819202122
23242526272829
3031