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https://sqlite.org/lockingv3.html
SQLite Version 3.0.0 introduced a new locking and journaling mechanism designed to improve concurrency over SQLite version 2 and to reduce the writer starvation problem. The new mechanism also allows atomic commits of transactions involving multiple database files. This document describes the new locking mechanism.
http://sqlite.1065341.n5.nabble.com/Concurrency-support-for-multiple-process-td11110.html
Concurrency support for multiple process. Hi, First, I've a process A that do many inserts to the database and reads back from the database to verify. The writes are done in one DEFERRED...
https://www.systoolsgroup.com/updates/sqlite-file-locking-and-concurrency/
In this lock there can be multiple simultaneous readers because any number of processes can hold shared locks at the same time. If any shared lock is active then no other process or thread is allowed to write to the database. Reserved: In this case the process plans to write on the database file but that it is just reading the file at that moment.
https://github.com/shancheng/shancheng/blob/master/doc/sqlite-concurrency.md
We are aware of no other embedded SQL database engine that supports as much concurrency as SQLite. SQLite allows multiple processes to have the database file open at once, and for multiple processes to read the database at once. When any process wants to write, it must lock the entire database file for the duration of its update.
https://softwareengineering.stackexchange.com/questions/340550/why-are-concurrent-writes-not-allowed-on-an-sqlite-database
SQLite has a very different design philosophy from most of those server-centric DBMSs that support multiple writers. It's designed to bring the power of SQL and the relational model to individual applications, and indeed to be embeddable within each application. That goal requires significant tradeoffs. Not adding the significant infrastructure and overhead needed to handle multiple concurrent writers …
https://sqlite.org/faq.html
We are aware of no other embedded SQL database engine that supports as much concurrency as SQLite. SQLite allows multiple processes to have the database file open at once, and for multiple processes to read the database at once. When any process wants to write, it must lock the entire database file for the duration of its update.
http://sqlite.1065341.n5.nabble.com/Sqlite3-amp-Concurrency-td75272.html
Apr 23, 2014 · Hi, Please correct me on below points for Sqlite3 on Linux platform. 1) Sqlite3 doesn’t have any concurrency issue when multiple process reading one database file at same time. This doesn’t required any special mode setting (Like WAL) 2) One process is reading & other process tries to write the same database file then file should be open in WAL mode.
https://dba.stackexchange.com/questions/24340/can-i-use-sqlite-to-share-data-among-different-applications
We are aware of no other embedded SQL database engine that supports as much concurrency as SQLite. SQLite allows multiple processes to have the database file open at once, and for multiple processes to read the database at once. When any process wants to write, it must lock the entire database file for the duration of its update.
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