Faster backups for large SQLite databases

Despite having “lite” in its name, SQLite can handle very large databases quite efficiently. The single largest I am currently dealing with just passed 100 GB, and occasionally when backing it up with the SQLite standard Command Line utility it would take many hours.

After some asking on the sqlite-users list (thanks Clemens Madish & Simon Slavin), and some experimenting, I have gotten the backup time down to 4-5 minutes on a live 100 GB database, which is just fine in my book. Below are the findings and an utility, sql3bak, which wraps the results of the findings.

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DataBasePool in DWScript

A recent addition to dwsDataBase is the DataBasePool static class.

As the names indicates, it facilitates pooling database connections from the script-side, while previously you had to rely on Delphi or driver-side pooling (or lack of).

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Introducing dwsDatabase

DWScript now has database support classes built-in, these are based on a thin, interface-based layer, and can be used Delphi-side as well to get automatic memory management for simple DB access.

It currently supports mORMot SynDB and Universal InterBase, meaning it gets high performance native connectivity to SQLite, FireBird, Oracle, ODBC and OleDB (MySQL, MS SQLServer, MS Jet, AS400…).

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Tag Archives: Database

Faster backups for large SQLite databases

DataBasePool in DWScript

Introducing dwsDatabase