大约有 1,954 项符合查询结果（耗时：0.0094秒） [XML]
T-SQL: Selecting rows to delete via joins
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In MySQL you would get an error "Unknown table 'TableA' in MULTI DELETE" and that is because you declared an alias for TableA (a). Small adjustment: DELETE a FROM TableA a INNER JOIN TableB b on b.Bid = a.Bid and [my filter cond...
Best way to synchronize local HTML5 DB (WebSQL Storage, SQLite) with a server (2 way sync) [closed]
...ains a JS library to synchronize the local HTML5 SQLite DB to a server DB (MySQL or other) :
http://quickconnect.pbworks.com/Using-Enterprise-Synchronization
To use this lib, you need to use the DataAccessObject of the framework to access your DB. It works by storing all the SQL request applied t...
How to set up a PostgreSQL database in Django
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isn't there anything like MySQL workbench for Postgres?
– Sidhin S Thomas
Jun 27 '17 at 13:40
1
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How to log PostgreSQL queries?
... that mean PostgreSQL can't enable logging unless I restart the server? In MySQL, it is as simple as "SET GLOBAL general_log = 'ON';"
– Antony
Dec 7 '11 at 22:41
7
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PHP Sort a multidimensional array by element containing date
...ition, SORT_ASC, $data);
?>
fyi, using a unix (seconds from 1970) or mysql timestamp (YmdHis - 20100526014500) would be be easier for the parser but i think in your case it makes no difference.
share
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ORDER BY the IN value list
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Just because it is so difficult to find and it has to be spread: in mySQL this can be done much simpler, but I don't know if it works in other SQL.
SELECT * FROM `comments`
WHERE `comments`.`id` IN ('12','5','3','17')
ORDER BY FIELD(`comments`.`id`,'12','5','3','17')
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What happens if you don't commit a transaction to a database (say, SQL Server)?
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...such as mySQL's MyISAM, which doesn't support transactions, sure.
– Piskvor left the building
Jul 12 '19 at 9:23
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Error in exception handler. - Laravel
...It printed could not find driver. And then I found out I had installed php-mysql, while php7.0-mysql was required. This link also helped me - digitalocean.com/community/tutorials/…
– Udayraj Deshmukh
Jun 18 '17 at 7:21
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How to filter SQL results in a has-many-through relation
...on easier to extend to n clubs and that avoids INTERSECT (not available in MySQL) and IN (as performance of this sucks in MySQL)
SELECT s.id,
s.name
FROM student s
join student_club sc
ON s.id = sc.student_id
WHERE sc.club_id IN ( 30, 50 )
GROUP BY s.id,
s.name
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Problems with contenttypes when loading a fixture in Django
I am having trouble loading Django fixtures into my MySQL database because of contenttypes conflicts. First I tried dumping the data from only my app like this:
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