Difference between revisions of "SQLite database format"

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SQLite 3 is current and older SQLite packages cannot use sqlite3 databases so use sqlite3 tools.
 
SQLite 3 is current and older SQLite packages cannot use sqlite3 databases so use sqlite3 tools.
  
= SQLite3 =
+
== SQLite3 ==
  
== Write-Ahead Log (WAL) ==
+
SQLite version 3 uses a page-based storage where the pages are used for various types of data e.g. there are:
 +
* lock-byte pages
 +
* freelist pages
 +
** freelist trunk pages
 +
** freelist leaf pages
 +
* B-tree pages
 +
** table B-tree interior pages
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** table B-tree leaf pages
 +
** index B-tree interior pages
 +
** index B-tree leaf pages
 +
* payload overflow pages
 +
* pointer map pages
 +
 
 +
=== Write-Ahead Log (WAL) ===
 
The default method by which SQLite implements atomic commit and rollback is a rollback journal. In version 3.7.0 a "Write-Ahead Log" option was added.
 
The default method by which SQLite implements atomic commit and rollback is a rollback journal. In version 3.7.0 a "Write-Ahead Log" option was added.
  
== Web Browser Data ==
+
== Use Cases ==
 +
=== Web Browser Data ===
 
[[Mozilla Firefox]] and [[Google Chrome]] both use SQLite version 3 databases for user data such as history, downloaded files.
 
[[Mozilla Firefox]] and [[Google Chrome]] both use SQLite version 3 databases for user data such as history, downloaded files.
  

Revision as of 02:49, 30 October 2013

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SQLite databases are used by many programs including several forensics tools, e.g. Autopsy 3. SQLite 3 is current and older SQLite packages cannot use sqlite3 databases so use sqlite3 tools.

SQLite3

SQLite version 3 uses a page-based storage where the pages are used for various types of data e.g. there are:

  • lock-byte pages
  • freelist pages
    • freelist trunk pages
    • freelist leaf pages
  • B-tree pages
    • table B-tree interior pages
    • table B-tree leaf pages
    • index B-tree interior pages
    • index B-tree leaf pages
  • payload overflow pages
  • pointer map pages

Write-Ahead Log (WAL)

The default method by which SQLite implements atomic commit and rollback is a rollback journal. In version 3.7.0 a "Write-Ahead Log" option was added.

Use Cases

Web Browser Data

Mozilla Firefox and Google Chrome both use SQLite version 3 databases for user data such as history, downloaded files.

External Links

Tools