Locking InternalsBy

Amit R S BansalDirector, Principal Consultant & Trainer

www.PeoplewareIndia.com | www.amitbansal.netMVP, MCT, MCTS, MCITP etc..

www.facebook.com/groups/theSQLGeeks

Follow me on twitter now @A_Bansalhttp://www.facebook.com/amit.r.bansal

Technical Director, eDominer Systems & Peopleware IndiaCorporate Trainer/Consultant & EvangelistConducted more than 450+ workshops on SQL Server & BI for top notch IT companies world wideMicrosoft MVP for SQL ServerSpeaker at TechED India, TechED US & TechED EuropeSpeaking at SQLBITs this March in LondonTechnical Reviewer/SME – MSL courses & certifications on SQL ServerFounder & President – SQLServerGeeks.com

Amit R S Bansal

Lock escalation Row/Page -> Table (default) or Row/Page -> Partition (if table is partitioned and partition-level locking

is enabled) Never from Row -> Page & Never from Partition -> Table

Update Locks TRAN A is locking rec1. TranB wants to update rec1, rec2 & rec3. TRANB will wait for an U lock on rec1, but will not lock rec2 & rec3

(thus increasing concurrency)PAGE locks

Mysterious (watch the demo)

Locking Myths debunked

Be a member - www.SQLServerGeeks.comwww.FaceBook.com/SQLServerGeeksTwitter @SQLServerGeeksPresentation & Scripts uploaded on www.SQLServerGeeks.com/files

Continue your learning…

www.AmitBansal.netLinkedIN, FB, Twitter, GuestBookTwitter: @A_Bansal

Join my networkPersonal Site – http://www.amitbansal.netLinkedIn – http://www.linkedin.com/in/AmitBansal2010Forum – www.FaceBook.com/groups/theSQLGeeksFaceBook – http://www.facebook.com/people/Amit.R.BansalTwitter – http://www.twitter.com/A_BansalBlog – www.SQLServerGeeks.com

Connect with Amit Bansal

Thank you

for suggestions, please email at admin@SQLServerGeeks.com