O'Reilly logo

Microsoft® SQL Server 2012 Unleashed by Alex T. Silverstein, Chris Gallelli, Paul T. Bertucci, Ray Rankins

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

SQL Server Lock Types

Locking is handled automatically in SQL Server. The Lock Manager chooses the type of lock, based on the type of transaction (such as SELECT, INSERT, UPDATE, or DELETE). Lock Manager uses the following types of locks:

Image Shared locks

Image Update locks

Image Exclusive locks

Image Intent locks

Schema locks

Bulk update locks

In addition to choosing ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required