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author | dan miller | 2007-10-20 02:49:29 +0000 |
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committer | dan miller | 2007-10-20 02:49:29 +0000 |
commit | e36d23a85ebff914d74bb541558c2b6082b78edb (patch) | |
tree | 54b58fdf162e78af64055282a6035c8d2443389d /libraries/sqlite/unix/sqlite-3.5.1/www/omitted.tcl | |
parent | * Fixed an issue whereby avatar chat distances were being calculated against ... (diff) | |
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sqlite source (unix build) added to libraries
Diffstat (limited to 'libraries/sqlite/unix/sqlite-3.5.1/www/omitted.tcl')
-rw-r--r-- | libraries/sqlite/unix/sqlite-3.5.1/www/omitted.tcl | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/libraries/sqlite/unix/sqlite-3.5.1/www/omitted.tcl b/libraries/sqlite/unix/sqlite-3.5.1/www/omitted.tcl new file mode 100644 index 0000000..23241e7 --- /dev/null +++ b/libraries/sqlite/unix/sqlite-3.5.1/www/omitted.tcl | |||
@@ -0,0 +1,85 @@ | |||
1 | # | ||
2 | # Run this script to generated a omitted.html output file | ||
3 | # | ||
4 | set rcsid {$Id: omitted.tcl,v 1.10 2005/11/03 00:41:18 drh Exp $} | ||
5 | source common.tcl | ||
6 | header {SQL Features That SQLite Does Not Implement} | ||
7 | puts { | ||
8 | <h2>SQL Features That SQLite Does Not Implement</h2> | ||
9 | |||
10 | <p> | ||
11 | Rather than try to list all the features of SQL92 that SQLite does | ||
12 | support, it is much easier to list those that it does not. | ||
13 | Unsupported features of SQL92 are shown below.</p> | ||
14 | |||
15 | <p> | ||
16 | The order of this list gives some hint as to when a feature might | ||
17 | be added to SQLite. Those features near the top of the list are | ||
18 | likely to be added in the near future. There are no immediate | ||
19 | plans to add features near the bottom of the list. | ||
20 | </p> | ||
21 | |||
22 | <table cellpadding="10"> | ||
23 | } | ||
24 | |||
25 | proc feature {name desc} { | ||
26 | puts "<tr><td valign=\"top\"><b><nobr>$name</nobr></b></td>" | ||
27 | puts "<td width=\"10\"> </th>" | ||
28 | puts "<td valign=\"top\">$desc</td></tr>" | ||
29 | } | ||
30 | |||
31 | feature {FOREIGN KEY constraints} { | ||
32 | FOREIGN KEY constraints are parsed but are not enforced. | ||
33 | } | ||
34 | |||
35 | feature {Complete trigger support} { | ||
36 | There is some support for triggers but it is not complete. Missing | ||
37 | subfeatures include FOR EACH STATEMENT triggers (currently all triggers | ||
38 | must be FOR EACH ROW), INSTEAD OF triggers on tables (currently | ||
39 | INSTEAD OF triggers are only allowed on views), and recursive | ||
40 | triggers - triggers that trigger themselves. | ||
41 | } | ||
42 | |||
43 | feature {Complete ALTER TABLE support} { | ||
44 | Only the RENAME TABLE and ADD COLUMN variants of the | ||
45 | ALTER TABLE command are supported. Other kinds of ALTER TABLE operations | ||
46 | such as | ||
47 | DROP COLUMN, ALTER COLUMN, ADD CONSTRAINT, and so forth are omitted. | ||
48 | } | ||
49 | |||
50 | feature {Nested transactions} { | ||
51 | The current implementation only allows a single active transaction. | ||
52 | } | ||
53 | |||
54 | feature {RIGHT and FULL OUTER JOIN} { | ||
55 | LEFT OUTER JOIN is implemented, but not RIGHT OUTER JOIN or | ||
56 | FULL OUTER JOIN. | ||
57 | } | ||
58 | |||
59 | feature {Writing to VIEWs} { | ||
60 | VIEWs in SQLite are read-only. You may not execute a DELETE, INSERT, or | ||
61 | UPDATE statement on a view. But you can create a trigger | ||
62 | that fires on an attempt to DELETE, INSERT, or UPDATE a view and do | ||
63 | what you need in the body of the trigger. | ||
64 | } | ||
65 | |||
66 | feature {GRANT and REVOKE} { | ||
67 | Since SQLite reads and writes an ordinary disk file, the | ||
68 | only access permissions that can be applied are the normal | ||
69 | file access permissions of the underlying operating system. | ||
70 | The GRANT and REVOKE commands commonly found on client/server | ||
71 | RDBMSes are not implemented because they would be meaningless | ||
72 | for an embedded database engine. | ||
73 | } | ||
74 | |||
75 | puts { | ||
76 | </table> | ||
77 | |||
78 | <p> | ||
79 | If you find other SQL92 features that SQLite does not support, please | ||
80 | add them to the Wiki page at | ||
81 | <a href="http://www.sqlite.org/cvstrac/wiki?p=UnsupportedSql"> | ||
82 | http://www.sqlite.org/cvstrac/wiki?p=Unsupported</a> | ||
83 | </p> | ||
84 | } | ||
85 | footer $rcsid | ||