JavaScript is disabled
Our website requires JavaScript to function properly. For a better experience, please enable JavaScript in your browser settings before proceeding.
locking case
In databases and transaction processing, two-phase locking (2PL) is a concurrency control method that guarantees serializability.
It is also the name of the resulting set of database transaction schedules (histories). The protocol utilizes locks, applied by a transaction to data, which may block (interpreted as signals to stop) other transactions from accessing the same data during the transaction's life.
By the 2PL protocol, locks are applied and removed in two phases:
Expanding phase: locks are acquired and no locks are released.
Shrinking phase: locks are released and no locks are acquired.Two types of locks are utilized by the basic protocol: Shared and Exclusive locks. Refinements of the basic protocol may utilize more lock types. Using locks that block processes, 2PL may be subject to deadlocks that result from the mutual blocking of two or more transactions.
View More On Wikipedia.org
It is also the name of the resulting set of database transaction schedules (histories). The protocol utilizes locks, applied by a transaction to data, which may block (interpreted as signals to stop) other transactions from accessing the same data during the transaction's life.
By the 2PL protocol, locks are applied and removed in two phases:
Expanding phase: locks are acquired and no locks are released.
Shrinking phase: locks are released and no locks are acquired.Two types of locks are utilized by the basic protocol: Shared and Exclusive locks. Refinements of the basic protocol may utilize more lock types. Using locks that block processes, 2PL may be subject to deadlocks that result from the mutual blocking of two or more transactions.
View More On Wikipedia.org
-
J
Taurus 85 titanium ported w/ 170 rounds, speed loader and locking case
-
- For Sale
- $275
- Clackamas
- Oregon
Selling my Taurus 85 Titanium. I haven't shot it in years and trying to clear out some of the guns I never use. I've put less than 100 rounds through it. The gun is ported on the top Comes with the gun, 170 rounds of .38, a speed loader and a locking case. Asking $275 for everything...- Classified Ad
- Handgun Classifieds
- JustinH
- Replies: 12
-
-
Pelican iM3220 Storm Long Case
-
- For Sale
- $200
- PDX
- Oregon
Lightly used Pelican Storm iM3220 case, the top is lightly discolored from being on a vehicle roof. No holes, functions as any Pelican should. Does not come with foam. Interior dimensions are: 44" x 14" x 8.5" More technical information can be found on Pelican's website at the following link...- Classified Ad
- Non-Firearm Item Classifieds
- AKlivin
- Replies: 0
-
-
AR 16inch w/ sling and Locking case
-
- For Sale
- For Trade
- $500
- Washougal
- Washington
Good basic (factory assembled) rifle about 100 rounds through it. Comes with a Viking tactical sling and locking Plano case. I’m reassessing what I need and cleaning out the safe. Good base to build on for a new guy or a gun to ad to the collection. buyer pays fees. Located in Washougal...- Classified Ad
- Rifle Classifieds
- Jbsheepdog
-
- Tags
- locking locking case
- Replies: 4
-
-
PSA “Multi” AR 16inch w/ sling and locking case.
-
- For Sale
- $700
- Washougal
- Washington
Good basic rifle about 100 rounds through it. Comes with a Viking tactical sling and locking Plano case. Good base to build on for a new guy or a gun to ad to the collection. $700 buyer pays fees. Located in Washougal. Will travel to Vancouver.- Classified Ad
- Rifle Classifieds
- Jbsheepdog
- Replies: 4
-
-
MTM Case-Gard 2 Pistol Handgun Case 809 with Master Padlock and Key
-
- For Sale
- $15
- Salem
- Oregon
MTM Case-Gard 2 Handgun Locking Case 809 with Master Padlock and Key. Near new condition. Designed to hold two handguns with barrel lengths up to 8'' long. Guns are held in place with two pieces of convoluted foam padding. Larger ergonomic handle for easy carrying. Strong snapping latches...- Classified Ad
- Part & Accessory Classifieds
- DaveHenry
-
- Tags
- handgun locking case
- Replies: 0
-
