SQLiteAn Embeddable SQL Database Engine
This page was last modified on 2004/04/23 17:04:45 UTC
The latest SQLite version is 
2.8.17 created on 2005/06/06 15:07:03 UTC
Introduction
SQLite is a C library that implements an embeddable SQL database engine.
Programs that link with the SQLite library can have SQL database
access without running a separate RDBMS process.
The distribution comes with a standalone command-line
access program (
sqlite.htmlsqlite ) that can
be used to administer an SQLite database and which serves as
an example of how to use the SQLite library.
SQLite is not a client library used to connect to a
big database server.  SQLite 
is the server.  The SQLite
library reads and writes directly to and from the database files
on disk.
Quick Links:
download.htmlDownload http://www.sqlite.org/cvstrac/timelineChange Log http://www.sqlite.org/cvstrac/tktnewReport a bug quickstart.htmlQuick start Features
Implements most of SQL92.
    (
omitted.htmlFeatures not supported )A complete database (with multiple tables and indices) is
    stored in a single disk file.
ACID (Atomic, Consistent, Isolated, Durable) transactions.Database files can be freely shared between machines with
    different byte orders.
Supports databases up to 2 terabytes (2^41 bytes) in size.A zero-configuration database engine - no DBA needed.Small memory footprint: less than 30K lines of C code. speed.htmlTwo times faster  than PostgreSQL and
    MySQL for many common operations.
Very simple 
c_interface.htmlC/C++ interface  requires the use of only
three functions and one opaque structure.
tclsqlite.htmlTCL bindings  included.
    Bindings for many other languages 
    
http://www.sqlite.org/cvstrac/wiki?p=SqliteWrappers    available separately.
Simple, well-commented source code.Automated test suite provides over 90% code coverage.Self-contained: no external dependencies.Built and tested under Linux and Windows.Sources are in the copyright.htmlpublic domain .
    Use for any purpose.
Current Status
A changes.htmlChange Summary  is available on this
website.  You can also access a detailed
http://www.sqlite.org/cvstrac/timelinechange history ,
http://www.sqlite.org/cvstrac/rptview?rn=2view open bugs ,
or
http://www.sqlite.org/cvstrac/tktnewreport new bugs at the
http://www.sqlite.org/cvstrac/CVS server .
Complete source code and precompiled binaries for the latest release are
download.htmlavailable for download  on this site.  You
can also obtain the latest changes by anonymous CVS access:
cvs -d :pserver:anonymous@www.sqlite.org:/sqlite login
cvs -d :pserver:anonymous@www.sqlite.org:/sqlite checkout sqlite
When prompted for a password, enter "anonymous".
Whenever either of the first two digits in the version number
for SQLite change, it means that the underlying file format
has changed.  Usually these changes are backwards compatible.
See 
formatchng.htmlformatchng.html for additional information.
Documentation
The following documentation is currently available:
A quickstart.htmlQuick Start  guide to using SQLite in
    5 minutes or less.
faq.htmlFrequently Asked Questions  are available online.Information on the sqlite.htmlsqlite     command-line utility.
SQLite is datatypes.htmltypeless .
The lang.htmlSQL Language  subset understood by SQLite.The c_interface.htmlC/C++ Interface .The nulls.htmlNULL handling  in SQLite versus
    other SQL database engines.
The tclsqlite.htmlTcl Binding  to SQLite.The arch.htmlArchitecture of the SQLite Library  describes
    how the library is put together.
A description of the opcode.htmlvirtual machine  that
    SQLite uses to access the database.
A description of the 
    
fileformat.htmldatabase file format  used by SQLite.
A speed.htmlspeed comparison  between SQLite, PostgreSQL,
    and MySQL.
User-written documentation is available on the
    
http://www.sqlite.org/cvstrac/wikiSQLite Wiki .  Please
    contribute if you can.
The SQLite source code is 30% comment.  These comments are
another important source of information.  
Mailing List
A mailing list has been set up for discussion of
SQLite design issues or for asking questions about SQLite.
To subscribe send an email to
mailto:sqlite-users-subscribe@sqlite.orgsqlite-users-subscribe@sqlite.org
.
If you would prefer to get digests rather than individual
emails, send a message to to
mailto:sqlite-users-digest-subscribe@sqlite.orgsqlite-users-digest-subscribe@sqlite.org
.
For additional information about operating and using this
mailing list, send a message to
mailto:sqlite-users-help@sqlite.orgsqlite-users-help@sqlite.org
 and instructions will be
sent by to you by return email.
Professional Support and Custom Modifications
If you would like professional support for SQLite
or if you want custom modifications to SQLite performed by the
original author, these services are available for a modest fee.
For additional information visit
http://www.hwaci.com/sw/sqlite/support.htmlhttp://www.hwaci.com/sw/sqlite/support.html
 or contact:
D. Richard Hipp 
Hwaci - Applied Software Research 
704.948.4565 
mailto:drh@hwaci.comdrh@hwaci.com Building From Source
To build sqlite under Unix, just unwrap the tarball, create a separate
build directory, run configure from the build directory and then
type "make".  For example:
$ tar xzf sqlite.tar.gz      
 Unpacks into directory named "sqlite" $ mkdir bld                  
 Create a separate build directory $ cd bld
$ ../sqlite/configure
$ make                       
 Builds "sqlite" and "libsqlite.a" $ make test                  
 Optional: run regression tests If you prefer, you can also build by making whatever modifications
you desire to the file "Makefile.linux-gcc" and then executing that
makefile.  The latter method is used for all official development
and testing of SQLite and for building the precompiled
binaries found on this website.  Windows binaries are generated by
cross-compiling from Linux using 
http://www.mingw.org/MinGW 
Related Sites
For information bindings of SQLite to other programming languages
(Perl, Python, Ruby, PHP, etc.) and for a list of programs currently
using SQLite, visit the Wiki documentation at:
http://www.sqlite.org/cvstrac/wikihttp://www.sqlite.org/cvstrac/wiki
