sqlite purge

相關問題 & 資訊整理

sqlite purge

The command you are looking for is vacuum. There is also a pragma to turn auto-vacuuming on. From the documentation: When an object (table, index, trigger, ... ,In this tutorial, we will explain why you need to use the SQLite VACUUM command and how to use it to optimize the database file. ,You missed a space: db.execSQL("delete * from " + TABLE_NAME);. Also there is no need to even include * , the correct query is: db.execSQL("delete from "+ ... ,You don't to specify the table name in the syntax. Only VACUUM works. Also, it will clean the main database only and not any attached database files. For more ... ,This tutorial walks you through the steps of using SQLite DELETE statement to remove one row, multiple rows, and all rows in a table. ,Unless SQLite is running in "auto_vacuum=FULL" mode, when a large amount of data is deleted from the database file it leaves behind empty space, or "free" ... ,SQLite TRUNCATE TABLE Command - Learn SQLite in simple and easy steps starting from basic to advanced concepts with examples including database ... ,The purge command removes content from a repository and stores that content in a "graveyard". The graveyard exists so that content can be recovered using the ... ,SQLite does not have an explicit TRUNCATE TABLE command like other databases. Instead, it has added a TRUNCATE optimizer to the DELETE statement. ,But using an SQLite database as the container, instead of ZIP, would be more elegant ..... And perhaps the application should provide a means to purge old and ...

相關軟體 SQLite 資訊

SQLite
SQLite 是一個實現自包含,無服務器,零配置,事務 SQL 數據庫引擎的進程內庫。 SQLite 的代碼是在公共領域,因此可以用於任何目的,商業或私人。 SQLite 是世界上應用最廣泛的數據庫,比我們可以計數的應用程序還要多,其中包括幾個備受矚目的項目。選擇版本:SQLite 3.21.0(32 位)SQLite 3.20.1(64 位) SQLite 軟體介紹

sqlite purge 相關參考資料
change sqlite file size after "DELETE FROM table" - Stack Overflow

The command you are looking for is vacuum. There is also a pragma to turn auto-vacuuming on. From the documentation: When an object (table, index, trigger, ...

https://stackoverflow.com

How SQLite VACUUM Optimizes Your Database - SQLite Tutorial

In this tutorial, we will explain why you need to use the SQLite VACUUM command and how to use it to optimize the database file.

http://www.sqlitetutorial.net

How to delete all record from table in sqlite with Android ...

You missed a space: db.execSQL("delete * from " + TABLE_NAME);. Also there is no need to even include * , the correct query is: db.execSQL("delete from "+ ...

https://stackoverflow.com

How to vacuum sqlite database? - Stack Overflow

You don't to specify the table name in the syntax. Only VACUUM works. Also, it will clean the main database only and not any attached database files. For more ...

https://stackoverflow.com

SQLite DELETE Statement Step By Step with Examples - SQLite Tutorial

This tutorial walks you through the steps of using SQLite DELETE statement to remove one row, multiple rows, and all rows in a table.

http://www.sqlitetutorial.net

SQLite Query Language: VACUUM

Unless SQLite is running in "auto_vacuum=FULL" mode, when a large amount of data is deleted from the database file it leaves behind empty space, or "free" ...

https://www.sqlite.org

SQLite TRUNCATE TABLE Command - Tutorialspoint

SQLite TRUNCATE TABLE Command - Learn SQLite in simple and easy steps starting from basic to advanced concepts with examples including database ...

https://www.tutorialspoint.com

SQLite: Help: purge

The purge command removes content from a repository and stores that content in a "graveyard". The graveyard exists so that content can be recovered using the ...

https://www.sqlite.org

SQLite: TRUNCATE TABLE Statement - TechOnTheNet

SQLite does not have an explicit TRUNCATE TABLE command like other databases. Instead, it has added a TRUNCATE optimizer to the DELETE statement.

https://www.techonthenet.com

What If OpenDocument Used SQLite?

But using an SQLite database as the container, instead of ZIP, would be more elegant ..... And perhaps the application should provide a means to purge old and ...

https://www.sqlite.org