Documentation Source Text

Check-in [19359f2dd7]
Login

Many hyperlinks are disabled.
Use anonymous login to enable hyperlinks.

Overview
Comment:Updates to the topical documentation index.
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 19359f2dd79a5aa5568a8d5d7ce9505b4df54657
User & Date: drh 2014-08-15 17:32:13
Context
2014-08-15
19:06
Version 3.8.6 check-in: e477e238b6 user: drh tags: trunk, release, version-3.8.6
17:32
Updates to the topical documentation index. check-in: 19359f2dd7 user: drh tags: trunk
15:48
Update the "Appropriate Uses" page and the "Documentation" index. Fix the size information in "Distinctive Features". check-in: a6e3e556b4 user: drh tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to pages/docs.in.

105
106
107
108
109
110
111
112
113
114




115
116
117
118
119


















120
121
122
123
124
125
126
127





























128
129
130
131
132
133
134
...
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164

165
166
167
168

169
170
171
172

173
174
175
176
177
178
179
180



181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
...
218
219
220
221
222
223
224






225
226
227
228
229




230
231
232
233
234
235
236
237
238
239
240
241









242
243
244
245
246
247
248
249
250
251
252
253
254
255
256

257
258
259
260
261
262
263
264
265

266
267










268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
doc {DataTypes} {datatype3.html} {
  SQLite version 3 introduces the concept of manifest typing, where the
  type of a value is associated with the value itself, not the column that
  it is stored in.
  This page describes data typing for SQLite version 3 in further detail.
}


heading {SQLite Features and Extensions} {
  Pages describing specific features or extension modules of SQLite.




}
doc {Autoincrement} {autoinc.html} {
  A description of the AUTOINCREMENT keyword in SQLite, what it does,
  why it is sometimes useful, and why it should be avoided if not
  strictly necessary.


















}
doc {Foreign Key Support} {foreignkeys.html} {
  This document describes the support for foreign key constraints introduced
  in version 3.6.19.
}
doc {Full Text Search} {fts3.html} {
  A description of the SQLite Full Text Search (FTS3) extension.
}





























doc {R-Trees} {rtree.html} {
  A description of the SQLite R-Tree extension. An R-Tree is a specialized
  data structure that supports fast multi-dimensional range queries often
  used in geospatial systems.
}
doc {Run-Time Loadable Extensions} {loadext.html} {
  A general overview on how run-time loadable extensions work, how they
................................................................................
  This feature is useful for certain specialized applications.
}
doc {Unlock Notify} {unlock_notify.html} {
  The "unlock notify" feature can be used in conjunction with
  [shared cache mode] to more efficiently manage resource conflict (database
  table locks).
}
doc {Using The Online Backup Interface} {backup.html} {
  The [sqlite3_backup_init | online-backup interface] can be used to
  copy content from a disk file into an in-memory database or vice
  versa and it can make a hot backup of a live database.  This application
  note gives examples of how.
}
doc {WITHOUT ROWID Tables} {withoutrowid.html} {
  The WITHOUT ROWID optimization is a option that can sometimes result
  in smaller and faster databases.
}
doc {Write-Ahead Log (WAL) Mode} {wal.html} {
  Transaction control using a write-ahead log offers more concurrency and
  is often faster than the default rollback transactions.  This document
  explains how to use WAL mode for improved performance.
}

heading {Upgrading SQLite, Backwards Compatibility}


doc {Moving From SQLite 3.5 to 3.6} {35to36.html} {
  A document describing the differences between SQLite version 3.5.9
  and 3.6.0.

}
doc {Moving From SQLite 3.4 to 3.5} {34to35.html} {
  A document describing the differences between SQLite version 3.4.2
  and 3.5.0.

}
doc {Release History} {changes.html} {
  A chronology of SQLite releases going back to version 1.0.0
}
doc {Backwards Compatibility} {formatchng.html} {
  This document details all of the incompatible changes to the SQLite
  file format that have occurred since version 1.0.0.
}




doc {Private Branches} {privatebranch.html} {
  This document suggests procedures for maintaining a private branch
  or fork of SQLite and keeping that branch or fork in sync with the
  public SQLite source tree.
}

heading {SQLite Technical/Design Documentation}

doc {Temporary Files Used By SQLite} {tempfiles.html} {
  SQLite can potentially use many different temporary files when
  processing certain SQL statements.  This document describes the
  many kinds of temporary files that SQLite uses and offers suggestions
  for avoiding them on systems where creating a temporary file is an
  expensive operation.
................................................................................
  how to port SQLite to new platforms.
}

doc {Locking And Concurrency<br>In SQLite Version 3} {lockingv3.html} {
  A description of how the new locking code in version 3 increases
  concurrency and decreases the problem of writer starvation.
}







doc {Overview Of The Optimizer} {optoverview.html} {
  A quick overview of the various query optimizations that are
  attempted by the SQLite code generator.
}





doc {Architecture} {arch.html} {
  An architectural overview of the SQLite library, useful for those who want
  to hack the code.
}

doc {VDBE Opcodes} {opcode.html} {
  This document is an automatically generated description of the various
  opcodes that the VDBE understands.  Programmers can use this document as
  a reference to better understand the output of EXPLAIN listings from
  SQLite.
}










doc {SQLite File Format} {fileformat2.html} {
  A description of the format used for SQLite database and journal files, and
  other details required to create software to read and write SQLite 
  databases without using SQLite.
}

doc {Compilation Options} {compile.html} {
  This document describes the compile time options that may be set to 
  modify the default behavior of the library or omit optional features
  in order to reduce binary size.
}

doc {Limits In SQLite} {limits.html} {
  This document describes limitations of SQLite (the maximum length of a

  string or blob, the maximum size of a database, the maximum number of
  tables in a database, etc.) and how these limits can be altered at
  compile-time and run-time.
}
doc {Null Handling} {nulls.html} {
  Different SQL database engines handle NULLs in different ways.  The
  SQL standards are ambiguous.  This document describes how SQLite handles
  NULLs in comparison with other SQL database engines.
}

doc {Unsupported SQL} {omitted.html} {
  This page describes features of SQL that SQLite does not support.










}



heading {Obsolete Documents} {
  These documents either pertain to SQLite version 2 or were written
  during the transition period between versions 2 and 3 (circa 2004).
  This documents are no longer up-to-date.  They are retained for 
  historical reference.
}
doc {Asynchronous IO Mode} {asyncvfs.html} {
  This page describes the asynchronous IO extension developed alongside
  SQLite. Using asynchronous IO can cause SQLite to appear more responsive
  by delegating database writes to a background thread.  <i>NB:  This
  extension is deprecated.  [WAL mode] is recommended as a replacement.</i>
}







<


>
>
>
>





>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>








>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>







 







|
|
|
|
<











|
>
|
<
|
|
>

<
|
|
>

<
<
|
<
<
<
|
>
>
>
|
<
<
<
<
<
<
<







 







>
>
>
>
>
>





>
>
>
>





<






>
>
>
>
>
>
>
>
>













|
<
>
|
|
|

|
|
|
<

>
|
<
>
>
>
>
>
>
>
>
>
>



|
|
|
|
|
<







105
106
107
108
109
110
111

112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
...
191
192
193
194
195
196
197
198
199
200
201

202
203
204
205
206
207
208
209
210
211
212
213
214
215

216
217
218
219

220
221
222
223


224



225
226
227
228
229







230
231
232
233
234
235
236
...
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285

286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314

315
316
317
318
319
320
321
322

323
324
325

326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343

344
345
346
347
348
349
350
doc {DataTypes} {datatype3.html} {
  SQLite version 3 introduces the concept of manifest typing, where the
  type of a value is associated with the value itself, not the column that
  it is stored in.
  This page describes data typing for SQLite version 3 in further detail.
}


heading {SQLite Features and Extensions} {
  Pages describing specific features or extension modules of SQLite.
}
doc {8+3 Filenames} {shortnames.html} {
  How to make SQLite work on filesystems that only support 
  8+3 filenames.
}
doc {Autoincrement} {autoinc.html} {
  A description of the AUTOINCREMENT keyword in SQLite, what it does,
  why it is sometimes useful, and why it should be avoided if not
  strictly necessary.
}
doc {Backup API} {backup.html} {
  The [sqlite3_backup_init | online-backup interface] can be used to
  copy content from a disk file into an in-memory database or vice
  versa and it can make a hot backup of a live database.  This application
  note gives examples of how.
}
doc {Command-Line Shell} {cli.html} {
  Notes on using the "sqlite3.exe" command-line interface that
  can be used to create, modify, and query arbitrary SQLite
  database files.
}
doc {Error and Warning Log} {errlog.html} {
  SQLite supports an "error and warning log" design to capture information
  about suspicious and/or error events during operation.  Embedded applications
  are encouraged to enable the error and warning log to help with debugging
  application problems that arise in the field.  This document explains how
  to do that.
}
doc {Foreign Key Support} {foreignkeys.html} {
  This document describes the support for foreign key constraints introduced
  in version 3.6.19.
}
doc {Full Text Search} {fts3.html} {
  A description of the SQLite Full Text Search (FTS3) extension.
}
doc {Internal versus External Blob Storage} {intern-v-extern-blob.html} {
  Should you store large BLOBs directly in the database, or store them
  in files and just record the filename in the database?  This document
  seeks to shed light on that question.
}
doc {Limits In SQLite} {limits.html} {
  This document describes limitations of SQLite (the maximum length of a
  string or blob, the maximum size of a database, the maximum number of
  tables in a database, etc.) and how these limits can be altered at
  compile-time and run-time.
}
doc {Memory-Mapped I/O} {mmap.html} {
  SQLite supports memory-mapped I/O.  Learn how to enable memory-mapped
  I/O and about the various advantages and disadvantages to using
  memory-mapped I/O in this document.
}
doc {Multi-threaded Programs and SQLite} {threadsafe.html} {
  SQLite is safe to use in multi-threaded programs.  This document
  provides the details and hints on how to maximize performance.
}
doc {Null Handling} {nulls.html} {
  Different SQL database engines handle NULLs in different ways.  The
  SQL standards are ambiguous.  This (circa 2003) document describes
  how SQLite handles NULLs in comparison with other SQL database engines.
}
doc {Partial Indexes} {partialindex.html} {
  A partial index is an index that only covers a subset of the rows in
  a table.  Learn how to use partial indexes in SQLite from this document.
}
doc {R-Trees} {rtree.html} {
  A description of the SQLite R-Tree extension. An R-Tree is a specialized
  data structure that supports fast multi-dimensional range queries often
  used in geospatial systems.
}
doc {Run-Time Loadable Extensions} {loadext.html} {
  A general overview on how run-time loadable extensions work, how they
................................................................................
  This feature is useful for certain specialized applications.
}
doc {Unlock Notify} {unlock_notify.html} {
  The "unlock notify" feature can be used in conjunction with
  [shared cache mode] to more efficiently manage resource conflict (database
  table locks).
}
doc {URI Filenames} {uri.html} {
  The names of database files can be specified using either an ordinary
  filename or a URI.  Using URI filenames provides additional capabilities,
  as this document describes.

}
doc {WITHOUT ROWID Tables} {withoutrowid.html} {
  The WITHOUT ROWID optimization is a option that can sometimes result
  in smaller and faster databases.
}
doc {Write-Ahead Log (WAL) Mode} {wal.html} {
  Transaction control using a write-ahead log offers more concurrency and
  is often faster than the default rollback transactions.  This document
  explains how to use WAL mode for improved performance.
}

heading {Advocacy} {
  Documents that strive to encourage the use of SQLite.
}

doc {SQLite As An Application File Format} {appfileformat.html} {
  This article advocates using SQLite as an application file format
  in place of XML or JSON or a "pile-of-file".
}

doc {Well Known Users} {famous.html} {
  This page lists a small subset of the many thousands of devices
  and application programs that make use of SQLite.
}







heading {SQLite Technical/Design Documentation} {
  These documents are oriented toward describing the internal
  implementation details and operation of SQLite.  
}








doc {Temporary Files Used By SQLite} {tempfiles.html} {
  SQLite can potentially use many different temporary files when
  processing certain SQL statements.  This document describes the
  many kinds of temporary files that SQLite uses and offers suggestions
  for avoiding them on systems where creating a temporary file is an
  expensive operation.
................................................................................
  how to port SQLite to new platforms.
}

doc {Locking And Concurrency<br>In SQLite Version 3} {lockingv3.html} {
  A description of how the new locking code in version 3 increases
  concurrency and decreases the problem of writer starvation.
}

doc {Isolation In SQLite} {isolation.html} {
  When we say that SQLite transactions are "serializable" what exactly
  does that mean?  How and when are changes made visible within the
  same database connection and to other database connections?
}

doc {Overview Of The Optimizer} {optoverview.html} {
  A quick overview of the various query optimizations that are
  attempted by the SQLite code generator.
}
doc {The Next-Generation Query Planner} {queryplanner-ng.html} {
  Additional information about the SQLite query planner, and in particular
  the redesign of the query planner that occurred for version 3.8.0.
}

doc {Architecture} {arch.html} {
  An architectural overview of the SQLite library, useful for those who want
  to hack the code.
}

doc {VDBE Opcodes} {opcode.html} {
  This document is an automatically generated description of the various
  opcodes that the VDBE understands.  Programmers can use this document as
  a reference to better understand the output of EXPLAIN listings from
  SQLite.
}
doc {Virtual Filesystem} {vfs.html} {
  The "VFS" object is the interface between the SQLite core and the
  underlying operating system.  Learn more about how the VFS object
  works and how to create new VFS objects from this article.
}
doc {Virtual Tables} {vtab.html} {
  This article describes the virtual table mechanism and API in SQLite and how
  it can be used to add new capabilities to the core SQLite library.
}

doc {SQLite File Format} {fileformat2.html} {
  A description of the format used for SQLite database and journal files, and
  other details required to create software to read and write SQLite 
  databases without using SQLite.
}

doc {Compilation Options} {compile.html} {
  This document describes the compile time options that may be set to 
  modify the default behavior of the library or omit optional features
  in order to reduce binary size.
}

heading {Upgrading SQLite, Backwards Compatibility}


doc {Moving From SQLite 3.5 to 3.6} {35to36.html} {
  A document describing the differences between SQLite version 3.5.9
  and 3.6.0.
}
doc {Moving From SQLite 3.4 to 3.5} {34to35.html} {
  A document describing the differences between SQLite version 3.4.2
  and 3.5.0.

}
doc {Release History} {changes.html} {
  A chronology of SQLite releases going back to version 1.0.0

}
doc {Backwards Compatibility} {formatchng.html} {
  This document details all of the incompatible changes to the SQLite
  file format that have occurred since version 1.0.0.
}

doc {Private Branches} {privatebranch.html} {
  This document suggests procedures for maintaining a private branch
  or fork of SQLite and keeping that branch or fork in sync with the
  public SQLite source tree.
}


heading {Obsolete Documents} {
  The following documents are no longer current and are retained
  for historical reference only.
  These documents generally pertain to out-of-date, obsolete, and/or
  deprecated features and extensions.

}
doc {Asynchronous IO Mode} {asyncvfs.html} {
  This page describes the asynchronous IO extension developed alongside
  SQLite. Using asynchronous IO can cause SQLite to appear more responsive
  by delegating database writes to a background thread.  <i>NB:  This
  extension is deprecated.  [WAL mode] is recommended as a replacement.</i>
}