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Overview
| Comment: | Update the FAQ to explain how to enable large file support. (CVS 779) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | 4caf624e9061fe7489a8e3c689297503 |
| User & Date: | drh 2002-11-05 23:24:38 |
Context
|
2002-11-06
| ||
| 00:59 | Changes to include files so that the >2GB file patch will compile under BSD. (CVS 780) check-in: 81bb1aed user: drh tags: trunk | |
|
2002-11-05
| ||
| 23:24 | Update the FAQ to explain how to enable large file support. (CVS 779) check-in: 4caf624e user: drh tags: trunk | |
| 23:03 | Add support for databases larger than 2GB under Unix. Must be compiled with -D_FILE_OFFSET_BITS=64 and -D_LARGEFILE_SOURCE in order to work with larger databases. (CVS 778) check-in: a3f67fe9 user: drh tags: trunk | |
Changes
Changes to www/faq.tcl.
1 2 3 4 5 6 7 8 9 10 11 ... 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 ... 332 333 334 335 336 337 338 339 340 341 342 343 344 345 |
#
# Run this script to generated a faq.html output file
#
set rcsid {$Id: faq.tcl,v 1.19 2002/08/24 18:24:57 drh Exp $}
puts {<html>
<head>
<title>SQLite Frequently Asked Questions</title>
</head>
<body bgcolor="white">
<h1 align="center">Frequently Asked Questions</h1>
................................................................................
ORDER BY name
</pre></blockquote>
}
faq {
Are there any known size limits to SQLite databases?
} {
<p>Internally, SQLite can handle databases up to 2^40 bytes (1 terabyte)
in size. But the backend interface to POSIX and Win32 limits files to
2^31 (2 gigabytes).</p>
<p>SQLite arbitrarily limits the amount of data in one row to 1 megabyte.
There is a single #define in the source code that can be changed to raise
this limit as high as 16 megabytes if desired.</p>
<p>There is a theoretical limit of about 2^32 (4 billion) rows
in a single table, but there
................................................................................
number of columns, etc. Indices are similarly unconstrained.</p>
<p>The names of tables, indices, view, triggers, and columns can be
as long as desired. However, the names of SQL functions (as created
by the <a href="c_interface.html#cfunc">sqlite_create_function()</a> API)
may not exceed 255 characters in length.</p>
}
faq {
What is the maximum size of a VARCHAR in SQLite?
} {
<p>Remember, SQLite is typeless. A VARCHAR column can hold as much
data as any other column. The total amount of data in a single row
of the database is limited to 1 megabyte. You can increase this limit
|
| | | > > > > > > > > > > > > > > > > |
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#
# Run this script to generated a faq.html output file
#
set rcsid {$Id: faq.tcl,v 1.20 2002/11/05 23:24:38 drh Exp $}
puts {<html>
<head>
<title>SQLite Frequently Asked Questions</title>
</head>
<body bgcolor="white">
<h1 align="center">Frequently Asked Questions</h1>
................................................................................
ORDER BY name
</pre></blockquote>
}
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>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
................................................................................
number of columns, etc. Indices are similarly unconstrained.</p>
<p>The names of tables, indices, view, triggers, and columns can be
as long as desired. However, the names of SQL functions (as created
by the <a href="c_interface.html#cfunc">sqlite_create_function()</a> API)
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?
} {
<p>Remember, SQLite is typeless. A VARCHAR column can hold as much
data as any other column. The total amount of data in a single row
of the database is limited to 1 megabyte. You can increase this limit
|