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Overview
| Comment: | Documentation of the SQLITE_FCNTL_PRAGMA file-control. Point out that disabling compound SELECT statements also disables multi-value INSERT. |
|---|---|
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
cf86dcee73ea1a8879bb92ef5868c7cc |
| User & Date: | drh 2012-02-23 14:40:38 |
Context
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2012-02-27
| ||
| 07:06 | Fix a bug in the description of the 'simple' FTS tokenizer. Underscores (codepoint 95) are divider characters not token characters. check-in: 73a0dac584 user: dan tags: trunk | |
|
2012-02-23
| ||
| 14:40 | Documentation of the SQLITE_FCNTL_PRAGMA file-control. Point out that disabling compound SELECT statements also disables multi-value INSERT. check-in: cf86dcee73 user: drh tags: trunk | |
| 12:32 | Fix a typo in the lang_keywords.html page. check-in: f8a77cd24f user: drh tags: trunk | |
Changes
Changes to pages/changes.in.
43 44 45 46 47 48 49 50 51 52 53 54 55 56 |
}
chng {2012 April 16 (3.7.11)} {
<li>Enhance the [INSERT] syntax to allow multiple rows to be inserted
via the VALUES clause.
<li>Enhance the [CREATE VIRTUAL TABLE] command to support the
IF NOT EXISTS clause.
}
chng {2012 January 16 (3.7.10)} {
<li>The default [schema format number] is changed from 1 to 4.
This means that, unless
the [PRAGMA legacy_file_format | PRAGMA legacy_file_format=ON] statement is
run, newly created database files will be unreadable by version of SQLite
|
> > > > > |
43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 |
}
chng {2012 April 16 (3.7.11)} {
<li>Enhance the [INSERT] syntax to allow multiple rows to be inserted
via the VALUES clause.
<li>Enhance the [CREATE VIRTUAL TABLE] command to support the
IF NOT EXISTS clause.
<li>Added the [sqlite3_stricmp()] interface as a counterpart to
[sqlite3_strnicmp()].
<li>Added the [SQLITE_FCNTL_PRAGMA] file control, giving [VFS] implementations
the ability to add new [PRAGMA] statements or to override built-in
PRAGMAs.
}
chng {2012 January 16 (3.7.10)} {
<li>The default [schema format number] is changed from 1 to 4.
This means that, unless
the [PRAGMA legacy_file_format | PRAGMA legacy_file_format=ON] statement is
run, newly created database files will be unreadable by version of SQLite
|
Changes to pages/compile.in.
754 755 756 757 758 759 760 761 762 763 764 765 766 767 |
}
COMPILE_OPTION {SQLITE_OMIT_COMPOUND_SELECT} {
This option is used to omit the compound [SELECT] functionality.
[SELECT] statements that use the
UNION, UNION ALL, INTERSECT or EXCEPT compound SELECT operators will
cause a parse error.
}
COMPILE_OPTION {SQLITE_OMIT_DATETIME_FUNCS} {
If this option is defined, SQLite's built-in date and time manipulation
functions are omitted. Specifically, the SQL functions julianday(), date(),
time(), datetime() and strftime() are not available. The default column
values CURRENT_TIME, CURRENT_DATE and CURRENT_TIMESTAMP are still available.
|
> > > > > |
754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 |
}
COMPILE_OPTION {SQLITE_OMIT_COMPOUND_SELECT} {
This option is used to omit the compound [SELECT] functionality.
[SELECT] statements that use the
UNION, UNION ALL, INTERSECT or EXCEPT compound SELECT operators will
cause a parse error.
An [INSERT] statement with multiple values in the VALUES clause is
implemented internally as a compound SELECT. Hence, this option also
disables the ability to insert more than a single row using an
INSERT INTO ... VALUES ... statement.
}
COMPILE_OPTION {SQLITE_OMIT_DATETIME_FUNCS} {
If this option is defined, SQLite's built-in date and time manipulation
functions are omitted. Specifically, the SQL functions julianday(), date(),
time(), datetime() and strftime() are not available. The default column
values CURRENT_TIME, CURRENT_DATE and CURRENT_TIMESTAMP are still available.
|
Changes to pages/pragma.in.
76 77 78 79 80 81 82 83 84 85 86 87 88 89 |
^Or the pragma might run during sqlite3_step() just like normal
SQL statements. Whether or not the pragma runs during sqlite3_prepare()
or sqlite3_step() depends on the pragma and on the specific release
of SQLite.
<li>The pragma command is specific to SQLite and is very unlikely
to be compatible with any other SQL database engine.
</ul>
<tcl>
Section {PRAGMA command syntax} syntax {PRAGMA}
BubbleDiagram pragma-stmt
BubbleDiagram pragma-value
</tcl>
|
> > > > > |
76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 |
^Or the pragma might run during sqlite3_step() just like normal
SQL statements. Whether or not the pragma runs during sqlite3_prepare()
or sqlite3_step() depends on the pragma and on the specific release
of SQLite.
<li>The pragma command is specific to SQLite and is very unlikely
to be compatible with any other SQL database engine.
</ul>
<p>The C-language API for SQLite provides the [SQLITE_FCNTL_PRAGMA]
[sqlite3_file_control | file control] which gives [VFS] implementations the
opportunity to add new PRAGMA statements or to override the meaning of
built-in PRAGMA statements.</p>
<tcl>
Section {PRAGMA command syntax} syntax {PRAGMA}
BubbleDiagram pragma-stmt
BubbleDiagram pragma-value
</tcl>
|