wal database

Link OverviewAfter 3.7.0, the WAL (write-ahead Log) pattern can be used, another way of implementing transactional atomicity. Advantages of Wal In most cases faster Higher parallelism. Because read and write

Detailed introduction of WAL mechanism in SQLite, sqlitewal Mechanism 1. What is WAL? The full name of WAL is Write Ahead Logging. It is a mechanism used in many databases to implement atomic transactions. SQLite introduced this feature in version 3.

WAL (Write-ahead Logging) is a technology that guarantees atomicity and persistence in a database system, and can improve the performance of data writes by using WAL to turn random writes of data into sequential writes. When writing data in HBase,

One, what is Wal? The full name of Wal is the write ahead Logging, a mechanism used in many databases to implement atomic transactions, which SQLite introduced in version 3.7.0. Second, how Wal work? Before introducing the WAL mechanism, SQLite

SQLite supports the write ahead logging (WAL) mode, which opens the Wal mode to increase the speed of writing to the database, which is not blocked between read and write, but is still blocked between write and write, but if you use the default

The default method SQLite implements atomic commit and rollback is to roll back the beginning of the log version 370,A new "Write-ahead log" option (hereinafter referred to as "Wal") is available Advantages and disadvantages of using Wal instead of

Android 2.3 began to adopt SQLite 3.7, while SQLite 3.7 began to introduce Wal mode (write ahead log), a new transaction control mechanism, So we will see the. DB-Wal file format in the System text message and contact database ,. The purpose of the

Wal-Log IntroductionThe Wal full name is the write ahead log, which is the online redo log in PostgreSQL, to ensure data consistency and transactional integrity in the database. And the technology introduced in PostgreSQL 7. Its central idea is

Grdb using SQLite's Wal-mode Wal full name is the write Ahead Logging, which is a mechanism for implementing atomic transactions in SQLite. This mode was introduced from the SQLite 3.7.0 release. Before that, SQLite uses the rollback journal

InnoDB WAL learning and InnoDBWAL Learning I wrote a blog post titled bad MySQL process writing habits (http://www.cnblogs.com/wingsless/p/5041838.html ). This blog post emphasizes that you do not need to submit transactions cyclically. Try to