Two-phase locking

Two-phase locking - concurrency control locking protocol in databases and transaction processing. Article "Two-phase locking" in English Wikipedia has 15.2 points for quality (as of July 1, 2025). The article contains 2 references and 8 sections. The article also contains quality flaw template, which reduce quality score.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that language version.

Since the creation of article "Two-phase locking", its content was written by 80 registered users of English Wikipedia and edited by 125 registered Wikipedia users in all languages.

The article is cited 80 times in English Wikipedia and cited 110 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #1079 in April 2003
• Global: #2904 in April 2003

The highest popularity rank from 2008:

• Local (English): #92464 in December 2014
• Global: #170919 in December 2014

There are 9 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	English (en) Two-phase locking		15.2486
2	Russian (ru) Двухфазная блокировка		15.2415
3	Korean (ko) 2단계 로킹		13.6262
4	Chinese (zh) 两阶段锁		13.0349
5	Greek (el) Κλείδωμα δύο Φάσεων		12.3734
6	Spanish (es) Bloqueo de dos fases		11.361
7	Italian (it) Two-phase locking		9.4435
8	Japanese (ja) ツーフェーズロック		3.7064
9	Persian (fa) قفل‌گذاری دو مرحله‌ای		1.1002

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "Two-phase locking" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Two-phase locking		1 149 127
2	Japanese (ja) ツーフェーズロック		38 499
3	Spanish (es) Bloqueo de dos fases		22 210
4	Chinese (zh) 两阶段锁		14 410
5	Russian (ru) Двухфазная блокировка		12 663
6	Italian (it) Two-phase locking		10 486
7	Greek (el) Κλείδωμα δύο Φάσεων		4 446
8	Persian (fa) قفل‌گذاری دو مرحله‌ای		3 989
9	Korean (ko) 2단계 로킹		375

More...

The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "Two-phase locking" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Two-phase locking		1 757
2	Chinese (zh) 两阶段锁		96
3	Russian (ru) Двухфазная блокировка		82
4	Italian (it) Two-phase locking		65
5	Japanese (ja) ツーフェーズロック		53
6	Spanish (es) Bloqueo de dos fases		49
7	Korean (ko) 2단계 로킹		19
8	Greek (el) Κλείδωμα δύο Φάσεων		9
9	Persian (fa) قفل‌گذاری دو مرحله‌ای		9

More...

The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "Two-phase locking" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Two-phase locking		80
2	Italian (it) Two-phase locking		16
3	Japanese (ja) ツーフェーズロック		10
4	Spanish (es) Bloqueo de dos fases		6
5	Greek (el) Κλείδωμα δύο Φάσεων		5
6	Russian (ru) Двухфазная блокировка		4
7	Chinese (zh) 两阶段锁		2
8	Persian (fa) قفل‌گذاری دو مرحله‌ای		1
9	Korean (ko) 2단계 로킹		1

More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "Two-phase locking" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Greek (el) Κλείδωμα δύο Φάσεων		0
2	English (en) Two-phase locking		0
3	Spanish (es) Bloqueo de dos fases		0
4	Persian (fa) قفل‌گذاری دو مرحله‌ای		0
5	Italian (it) Two-phase locking		0
6	Japanese (ja) ツーフェーズロック		0
7	Korean (ko) 2단계 로킹		0
8	Russian (ru) Двухфазная блокировка		0
9	Chinese (zh) 两阶段锁		0

More...

The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "Two-phase locking" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Two-phase locking		80
2	Japanese (ja) ツーフェーズロック		10
3	Persian (fa) قفل‌گذاری دو مرحله‌ای		4
4	Italian (it) Two-phase locking		4
5	Greek (el) Κλείδωμα δύο Φάσεων		3
6	Spanish (es) Bloqueo de dos fases		3
7	Korean (ko) 2단계 로킹		3
8	Chinese (zh) 两阶段锁		2
9	Russian (ru) Двухфазная блокировка		1

More...

#	Language	Value
el	Greek Κλείδωμα δύο Φάσεων
en	English Two-phase locking
es	Spanish Bloqueo de dos fases
fa	Persian قفل‌گذاری دو مرحله‌ای
it	Italian Two-phase locking
ja	Japanese ツーフェーズロック
ko	Korean 2단계 로킹
ru	Russian Двухфазная блокировка
zh	Chinese 两阶段锁

Best Rank

English: #92464 12.2014

Global: #170919 12.2014

Best Rank

English: #1079 04.2003

Global: #2904 04.2003

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The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information