database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2026-01-06 08:01:16 +03:00
Code Activity

Add large file support to Windows. Change large file support for Unix so

Browse Source 
that it compiles automatically - without requiring special options on the
compiler command line. (CVS 781)

FossilOrigin-Name: 2008b56fe11e49d52e28f47d14ccd70504e6c094
This commit is contained in:
drh
2002-11-06 14:08:11 +00:00
parent 20e9ab16d8
commit 829e802992
8 changed files with 59 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
www/faq.tcl
View File

@@ -1,7 +1,7 @@
#
# Run this script to generated a faq.html output file
#
set rcsid {$Id: faq.tcl,v 1.20 2002/11/05 23:24:38 drh Exp $}
set rcsid {$Id: faq.tcl,v 1.21 2002/11/06 14:08:12 drh Exp $}
puts {<html>
<head>
@@ -311,21 +311,19 @@ ORDER BY name
faq {
Are there any known size limits to SQLite databases?
} {
<p>Internally, SQLite can handle databases up to 2^41 bytes (2 terabytes)
in size. But the backend interface to POSIX and Win32 limits files to
2^31 (2 gigabytes). (See the next question for instructions on how
to relax this limit under POSIX.)</p>
<p>As of version 2.7.4,
SQLite can handle databases up to 2^41 bytes (2 terabytes)
in size on both Windows and Unix. Older version of SQLite
were limited to databases of 2^31 bytes (2 gigabytes).</p>
<p>SQLite arbitrarily limits the amount of data in one row to 1 megabyte.
There is a single #define in the source code that can be changed to raise
this limit as high as 16 megabytes if desired.</p>
<p>There is a theoretical limit of about 2^32 (4 billion) rows
in a single table, but there
is no way to test this limit without exceeding the maximum file size, so
it is not really an issue. There is also a theoretical limit of about 2^32
tables and indices, but again it is not really possible to reach this
limit due to the file size constraint.</p>
in a single table, but this limit has never been tested.</p>
There is also a theoretical limit of about 2^32
tables and indices.</p>
<p>The name and "CREATE TABLE" statement for a table must fit entirely
within a 1-megabyte row of the SQLITE_MASTER table. Other than this,
@@ -338,21 +336,6 @@ faq {
may not exceed 255 characters in length.</p>
}
faq {
Are there any ways to increase the maximum database size limit above 2GB?
} {
<p>For POSIX systems that support large files, you can increase the maximum
database size of SQLite by adding the following two options to your
compiler command line:</p>
<blockquote><pre>
-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
</pre></blockquote>
<p>The resulting library and "sqlite" executable should be able to work
with databases as large as 2^41 bytes (2 terabytes).</p>
}
faq {
What is the maximum size of a VARCHAR in SQLite?
} {