n Sqlite?
So you are looking for customers without orders.
Try:
SELECT customers.id,customers.someothercol
FROM customers
LEFT OUTER JOIN orders
ON orders.cust_id = customers.id
WHERE orders.cust_id IS NULL;
>regards
>W. Canfie
ed and un-tared source (
> http://www.sqlite.org/sqlite-src-3070701.zip) will be /src (or C:\src).
>
> Thank you.
>
>On Sun, Jul 31, 2011 at 10:46 AM, Kees Nuyt wrote:
>
>>
>> On Sun, 31 Jul 2011 09:54:29 +0300, Baruch Burstein
>> wrote:
>>
>> > Can you refer
/www.sqlite.org/amalgamation.html
If you need more specific help, please pose more specific
questions.
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Just FYI:
James told me in private mail
"
SQLiteDatabase is not working
for sqlite3, I changed the open script to:
$dbh = new PDO('sqlite:yourdatabase.db');
Now it is working.
"
On Sun, 03 Jul 2011 16:08:24 +0200, Kees Nuyt
wrote:
>On Sun, 3 Jul 2011 06:47:26
RN: function 'pcntl_fork' not available
>20110703:054052 WARN: function 'posix_setuid' not available
>
>Do I missed anything?
>
>Your help is greatly appreciated!
You may have used the wrong interface.
Perhaps this example helps:
http://php.net/manual/en/intro.sqlite3.
tatement:
PRAGMA jounal_mode=WAL;
and then have a look what value
PRAGMA jounal_mode;
returns.
>Thanks
>airwolf2026
>
>
>-- Original --
>From: "Kees Nuyt";
>Date: Sat, Jul 2, 2011 04:52 PM
>To: "sqlite-us
his is to use SQL:
PRAGMA jounal_mode=WAL;
http://www.sqlite.org/pragma.html#pragma_journal_mode
THe query parameters SQLite knows do not include journal_mode:
http://www.sqlite.org/uri.html#coreqp
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On Mon, 27 Jun 2011 07:13:14 +0200, Cecil Westerhof
wrote:
>2011/6/26 Kees Nuyt
>
>> I think Cecil was referring to the fact that some program can
>> forget to switch foreign_keys to on, and delete rows that are
>> referenced, or change primary keys.
>>
>
>Ye
id2 INTEGER PRIMARY KEY NOT NULL,
id1 INTEGER REFERENCES T1(id1)
ON UPDATE CASCADE ON DELETE CASCADE
);
Then one could detect missing keys in T1 with:
SELECT DISTINCT T2.id1
FROM T2
LEFT OUTER JOIN T1 ON T2.id1 == T1.id1
WHERE T1.id1 IS
ndices which are created explicitly with a CREATE INDEX
statement.
.indices tablename
will also show the automatically generated indices, needed to
implement UNIQUE constraints.
I would call this both a feature and a documentation bug ;)
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ht
,weights.fat
,weights.water
,weights.muscle
FROM weights
,categories
WHEREcategories.desc = 'Cecil'
AND weights.categoryID = categories.id
ORDER BY weights.measureDate DESC
LIMIT${SHOW_NUMBER}
) ORDER BY
eplace the offset in the LIMIT clause by something like
(SELECT COUNT() WHERE ...)
It may not apply to your use case, but perhaps it helps anyway:
http://www.sqlite.org/cvstrac/wiki?p=ScrollingCursor
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rom the terminal mode, did you link it with the readline
libraries?
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sqlite3_bind_parameter_index(stmt, "%:bp%"),
"%bar%", ..
Or rewrite the SQL as
char *sql = "SELECT * FROM foo WHERE name LIKE '%' || :bp || '%'";
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On Sat, 11 Jun 2011 13:51:43 +0300, irfan khan
wrote:
> Hi,
>
> Can we configure high availibility with SQLITE databases like we can do
> with other rdbms.
No.
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e.
Reading the documentation at http://www.sqlite.org/docs.html will
give you more insight.
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On Sun, 29 May 2011 10:35:51 +1000, "Greg Keogh"
wrote:
> I'm utterly gobsmacked by the poor performance of the
> inserts without a transaction around them.
It's a FAQ,
http://www.sqlite.org/faq.html#q19
explains the reasons quite clearly.
op and
calling sqlite3_reset().
This papge might be of interest for you:
http://www.sqlite.org/cvstrac/wiki?p=ScrollingCursor
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equires sqlite 3.7.xx, while the version
>installed on this system still is 3.6.16. Is that a problem?
On many platforms, firefox installs its own libsqlite3.so, e.g. in
/usr/lib/mps, so it doesn't require a specific system-wide sqlite3
version. I don't know about this specific Ubuntu / Firefox
releases.
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: near line 8: foreign key constraint failed
INSERT INTO child SELECT s1 FROM source;
Error: near line 9: foreign key constraint failed
SELECT * FROM child;
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:
Install the Firefox web browser from
http://www.mozilla.com/en-US/firefox/new/
and add the SQLite manager add-on from
https://addons.mozilla.org/en-US/firefox/addon/sqlite-manager/
I have no idea wether all that is compatible with Windows NT.
Windows XP and later are fine.
in the amalgamation tarball
http://www.sqlite.org/sqlite-autoconf-3070601.tar.gz
Note: Changing the defaults make your SQL less portable to other
SQLite instances.
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http://sqli
sqlite3 $d ; for f in yourfiles* ; do echo
"INSERT INTO Files (name,contents) VALUES ('$f',X'$(od -v -A n -t x1
$f|tr -d '\r\n\t ')');" | sqlite3 $d ; done
It might not be what you're looking for.
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X'$(od -A n -t x1
$f|tr -d '\r\n\t ')');" | sqlite3 $d ; done
HTH
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AGMA compile_options;
ENABLE_FTS3
ENABLE_RTREE
TEMP_STORE=1
THREADSAFE=1
>Thanks,
>Tom
>BareFeetWare
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if i remove the order by clause
>
>See under the "Optional LIMIT and ORDER BY Clauses" heading
>on this page:
>
> http://www.sqlite.org/lang_update.html
>
>You need to build SQLite with SQLITE_ENABLE_UPDATE_DELETE_LIMIT
>defined.
>
> http://www.sqlite.or
On Sat, 12 Feb 2011 19:14:51 +, Simon Slavin
wrote:
>
>On 12 Feb 2011, at 11:43am, Kees Nuyt wrote:
>
>> There are just three cases:
>> - i < j
>> - i > j
>> - i and j are the same.
>>
>> If j < i just swap the values.
>
> and gi
ow you're not fond of triggers because of speed.
I don't think this construct will hurt much in this case.
You'll have to benchmark it.
HTH
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On Thu, 13 Jan 2011 09:44:06 +0100, Kees Nuyt
wrote:
>or even
>SELECT ROWID,
> FROM atable ... ;
oops, make that
or even
SELECT ROWID,*
FROM atable ... ;
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ROWID,
FROM atable ... ;
and the update would have:
UPDATE atable SET
WHERE ROWID=$hiddenvalueingrid;
You would have to check with PRAGMA table_info(atable) whether or
not the special name ROWID is used by a user defined column, and if
so, use one of the other special names, i.e. _r
g time, why is SQL so slow? is there a way to
>improve the speed besides to switch to another database or to develop
>an own TXT file on the harddisk?
It is certainly possible to make it faster.
Mozilla Firefox uses SQLite for the same purpose.
You may want to study their code to see how the
Windows95
and avoids newer Windows API calls.
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ver instance.
http://www.sqlite.org/cvstrac/wiki?p=SqliteNetwork
Hope this helps.
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d INTEGER
, CONSTRAINT fk_foo_id
FOREIGN KEY ( foo_id ) REFERENCES foo (id)
ON UPDATE CASCADE ON DELETE CASCADE
);
BEGIN;
INSERT INTO foo (id,bar) VALUES (1,'bar1');
INSERT INTO fox (dog,foo_id) VALUES ('dog1',last_insert_rowid() )
COMMIT;
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On Fri, 10 Dec 2010 12:57:48 +0100, luuk34 wrote:
>
>
>On 10-12-10 12:43, Kees Nuyt wrote:
>> On Fri, 10 Dec 2010 02:53:32 -0800 (PST), lucavb
>> wrote:
>>
>>> Hello,
>>> i need to to do this:
>>>
>>> i have this table: "use
3)
>
>How can i do that?
>
Assuming you mean idtitle where you write "fims":
SELECT a.id, a.userid, a.idtitle, a.rate
FROM userrates AS a
INNER JOIN (
SELECT userid
FROM userrates
WHERE idtitle IN (1,10)
GROUP BY userid
HAVING count(id) = 2
//www.mail-archive.com/sqlite-users@sqlite.org/msg21791.html
(download the zip file and have a look at source file func_exp.c)
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some other database:
C:\sqlite > sqlite3 mydb.db3 ".dump TABLENAME" | find "INSERT INTO"
| your_other_sqltool_and_the_parameters_it_needs
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utput to stderr
printf "%s is %d.%d.%d.%d\n" "$p" "$v" "$r" "$l" "$d" >&2
# output "the unix way" to stdout
printf "%d.%d.%d.%d\n" "$v" &qu
p TABLENAME"|grep -e ^INSERT
and pipe the result into the database command line tool of the other
database.
Your requirement "in order" is not satisfied this way, but since you
insert the data into another database the order is not impo
l, views, triggers, and foreign key constraints can only
use objects within the same schema (=database).
That makes sense, because SQLite (and you) cannot guarantee the
other database file is attached when the view is used, the trigger
fires, or the reference is referred.
>Oliver
--
( Kee
On Sun, 5 Dec 2010 19:08:59 -0500, "Igor Tandetnik"
wrote:
>Kees Nuyt wrote:
>> If you need a compound index for performance reasons, you can use
>> the autoincrement key as the primary key for the table and define a
>> unique index on the compound key.
>
>
y key for the table and define a
unique index on the compound key. Is doesn't serve as a constraint
though, because the primary key constraint is more limiting already.
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osleep(3C) function is preferred over this function.
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sn't have to be called RowID at all.
CREATE TABLE IF NOT EXISTS Tasks (
JobPlan_ID INTEGER NOT NULL
REFERENCES JobPlans(id)
ON DELETE CASCADE,
UID UNIQUE NOT NULL
);
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collect all fragment rows with
the same identity into one.
Interesting to read:
http://www.thethirdmanifesto.com/
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On Tue, 16 Nov 2010 14:07:34 -0800 (PST), Bernard Ertl
wrote:
>
>
> Nicolas Williams-2 wrote:
> > Do you have recursive triggers enabled?
>
> I'm not sure. How do I check?
http://www.sqlite.org/pragma.html#pragma_recursive_trigger
Until now I thought
>that it is just a kind of log for DDL-statements.
The table- index- view- and trigger metadata is only stored in the
sql column in sqlite_master. It is parsed on every sqlite3_open*().
The in-memory structures you see with PRAGMA table_info() and PRAGMA
index_
; would be it atomic? or it anyway would suffer
>from threads?
The last_insert_rowid() function returns the ROWID of the last row
insert from the database connection which invoked the function.
So, yes, it suffers from threads if the threads use the same
database conne
ike SQLite and I am
>very committed to its use in my projects. Many thanks to all who make SQLite
>possible. It is an excellent product. And the support available through this
>mailing list is truly top notch. I have paid (sometimes dearly) for a
>lot less
>competent and complete
xact, and the second is not
complete I'm not really tempted to look into it.
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f
FROM table1
WHERE abc = ?
);";
prepare(db, delSql, ..., stmt, ...);
bind_int(stmt, ..., ghivalue);
bind_text(stmt, ..., abcvalue);
step(stmt);
reset(stmt);
finalize(stmt);
Hope this helps.
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xecDirect("BEGIN TRANSACTION");
SQLExecDirect("INSERT INTO t (col1,col2) VALUES
('val11','val21')");
SQLExecDirect("INSERT INTO t (col1,col2) VALUES
('val12','val22')");
SQLExecDirect("INSERT INTO t (col1,col2) VALUES
('va
ite it to
disk and open it in the normal way.
HTH
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uency you intend to run the analysis. That
way the time spent to this kind of housekeeping will be
about the same.
And you could consider
PRAGMA auto_vacuum = 0 | NONE | 1 | FULL | 2 | INCREMENTAL;
> If no such thing exists, I can build it, but I would
> ima
hich is not set on your database file) FAT
doesn't support ownership, nor ACL's.
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it here.
Did you already try to run ANALYZE; on the fully populated
database? It gathers statistics about indexes and those are
used by the optimizer to choose a query plan.
It might not help in your case, but it doesn't hurt to try.
>Thanks again and best reg
lems, not in the initial
design.
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ly after running
ANALYZE; on a fully populated database.
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e I don't see anything fixed that
> would resolve the issue.
>
> Thank you for your help.
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Finalize at program exit (or not at all).
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eferences and triggers.
Alternatively, you can create an composite index with the
"deleted" column as one of the components.
>From a theoretical view, if you care about the visibility of
a row, you should express it as an attribute of the entity.
The solutions above comply with that notion
ique constraints. Anything more is a can
of worms indeed.
Optional indexes are a codasyl hierarchical or network
database feature, where indexes are exposed to the DML.
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http
You can clone the repository to your environment and
checkout any version, then generate the website of that
point in time.
The fossil version control system is available here:
http://www.fossil-scm.org/index.html/doc/tip/www/index.wiki
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counter(line-number) ".";
counter-increment: line-number;
padding-right: 0.3em; }
#. col1col2
val1.1val1.2
val2.1val2.1
val3.1val3.2
m) and analyzing the database both queries
>take 0.0.
>
>Why SQLite does not maintain statistics for rowid indexes?
Because the cardinality is known, given that rowid is unique
by definition?
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_external is only
available for MS Windows.
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e3meo.ksh unusedids.db3
3.6.23.1
CREATE TABLE integers (
id INTEGER PRIMARY KEY AUTOINCREMENT
);
CREATE TABLE test (
id INTEGER PRIMARY KEY NOT NULL,
tx TEXT
);
table integers:
cid|name|type|notnull|dflt_value|pk
0|id|INTEGER|0||1
table test:
cid|name|type|notnull|dflt_value|pk
0
r is really easy.
That should convince him/her.
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ddocs/en-us/copy.mspx?mfr=true
>
>Using /b
I stand corrected, thanks for the research.
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so that
>the copy doesn't stop at the first nul byte?
>
> copy /b my.db nul
You are right.
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s,
>
>josé
>
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file path.
No.
But you can make your script directory the current
directory, first:
cd /path/to/scriptdir
sqlite3 /path/to/database/dbfile /path/to/outfile
scriptA:
:
.read script-B
etcetera
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with:
.output FILENAME
and back to the redirection with:
.output stdout
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ng
e) Give the database as much cache as you can (but not more
than the estimated database size)
f) fast hardware (especially disks)
I think there are a few more suggestions in the wiki on
http://www.sqlite.org
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On Mon, 12 Jul 2010 06:47:55 -0700 (PDT), B H
wrote:
>also is there a web site or blog for questions and answers in additional to
>the email?
Internet Relay Chat:
Channel #sqlite on irc.freenode.net
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but I'm not sure what the most common one in sqlite community.
I use .sql for sql scripts, and .db3 for SQLite3 databases.
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/syntax/ordering-term.gif
suggests it is possible to specify ASC or DESC, which of
course is true for ORDER BY, but not for GROUP BY.
Thanks to 'iSteve' on Internet Relay Chat (network
freenode.net, channel #sqlite) for bringing this to our
attention.
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.fossil-scm.org/index.html/doc/tip/www/index.wiki
has a few routines which might be interesting.
I know Microsoft does (or tries to do) something similar,
perhaps MSDN is of any help?
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ed to allow reserved words as identifiers (table
names, column names and the like).
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owids of its own.
That's correct.
> Try doing 'SELECT rowid FROM phonebook_order' and see
> whether you get any result at all, and whether the numbers are in order.
I like the way you invite people to experiment themselves.
It's the best way to acquire knowledge.
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7;,'104002');
.headers on
SELECT rowid
FROM phonebook
WHERE last_name = 'Smith'
AND first_name = 'John';
SELECT * FROM phonebook_order;
SELECT COUNT(*) AS roworder FROM phonebook_order
WHERE last_name <= 'Smith'
AND first_name <= 'John';
>Is there an easier way?
Use a counter in your host language.
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sg() returns 'unknown error'.
All I can say it is not very useful to call sqlite3_errmsg()
on a correct result.
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folders is
to copy files to and from virtual machines in an easy way.
I think the locking primitives of VBox shared folders are
not 100%. You could try again with NFSv4.
>Thank you,
>
>Art Zerger
>
>azer...@yahoo.com
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hanges() function.
http://www.sqlite.org/lang_corefunc.html
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he reasons could be deletion of a journal after a
failed transaction.
> a solution to rectify this issue.
First make a backup copy of the database file.
Try the .dump command in the command line tool.
If that doesn't return all your data you can try
.dump tablename for every single t
oo problematic to add sucha feature?
As a workaround, you can use:
select name from sqlite_master
where type='table';
select name from sqlite_temp_master
where type='table';
select name from attacheddb.sqlite_master
where type='table';
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ery message in this list.
Hope this helps.
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return(FALSE);
}
} // end __construct()
/**
* For debugging: tell us when we're done.
* Comment out the whole function to suppress.
*/
function __destruct(){
error_log(__FUNCTION__.' '.$this
l1 AS t_col2), col2,
...
FROM atable.
I think it is your job to do that comparison, not ours.
If you find anything irregular you can't understand after
consulting
http://www.sqlite.org/datatype3.html and
http://www.sqlite.org/lang_datefunc.html
you can ask that specific question here.
you should have a look at
fossil (also by drh):
http://www.fossil-scm.org/index.html/doc/tip/www/index.wiki
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to recreate indexes and triggers.
Usually it's a good idea to write a few "load test data into
new schema", or even "unload data from old schema / load
data into new schema" scripts when you start a project.
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t(int)
sqlite3_release_memory(int)
sqlite3_memory_*()
>RobR
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sted, but certainly faster than 26 separate queries)
>Is there any way to make this query faster? It is taking about 10
>second for 140K entries.
>
>One idea is to add a column named 'letter' and SELECT COUNT(letter)
>from dictionar
SQL API, based on lo and
>behold, SQLite v3 API. What this means is that all tools that work
>with SQLite will also work with Oracle Berkeley DB.
>
>Here is the link to press release:
>http://money.cnn.com/news/newsfeeds/articles/marketwire/0599534.htm
Interesti
ery wordy and not tailored to
SQLite.
Nicolas Williams suggestion to add alt tags to the images is
a good idea. Perhaps the OP, Tyler Spivey, can shine his
light on that concept?
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On Fri, 19 Mar 2010 23:53:39 -0500, Ed Sims
wrote:
>> http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
>>
>Me too please!
Just follow the http:// link you quoteed.
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't be concerned about performance until you really have a
performance problem. A healthy schema usually performs well.
Design, Build, Benchmark, Optimize, Benchmark.
>Thanks
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constraint is introduced by the FOREIGN KEY
keyword.
The difference between the two is that a table constraint
can (but doesn't have to) use composite keys, consisting of
more than one column.
>Simon.
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ALTER TABLE can only rename tables or add columns.
>Simon.
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