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Setting up foreign keys in phpMyAdmin?
...dmin lets you define foreign keys using their "relations" view. But since, MySQL only supports foreign constraints on "INNO DB" tables, the first step is to make sure the tables you are using are of that type.
To setup a foreign key so that the PID column in a table named CHILD references the ID co...
Can PHP PDO Statements accept the table or column name as parameter?
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I miss mysql_real_escape_string(). Maybe here I can say it without someone jumping in and saying "But you don't need it with PDO"
– Rolf
Oct 20 '18 at 8:39
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jQuery UI Sortable, then write order into a database
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this may help you codingbin.com/reorder-with-php-mysql-and-jquery-sortable
– MKD
Mar 2 '17 at 23:51
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How can I remove a pytz timezone from a datetime object?
...Datetime.replace(tzinfo=None)
Why would you do this? One example is that mysql does not support timezones with its DATETIME type. So using ORM's like sqlalchemy will simply remove the timezone when you give it a datetime.datetime object to insert into the database. The solution is to convert your ...
How can I remove duplicate rows?
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MySQL error with the first script 'You can't specify target table 'TableName' for update in FROM clause'
– D.Rosado
Jun 13 '12 at 10:54
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difference between primary key and unique key
I'm using mysql database. I have a confusion between primary key and unique key.
15 Answers
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Start / Stop a Windows Service from a non-Administrator user account
...ING : /grant=mike=f : No previous object opened". The service I tried was MySQL. Reboot: access is denied, as ever.
– mike rodent
Mar 14 '16 at 21:29
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How do I find a “gap” in running counter with SQL?
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In MySQL and PostgreSQL:
SELECT id + 1
FROM mytable mo
WHERE NOT EXISTS
(
SELECT NULL
FROM mytable mi
WHERE mi.id = mo.id + 1
)
ORDER BY
id
LIMIT 1
In SQL Server:
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房多多：懂用户比懂互联网重要 - 资讯 - 清泛网 - 专注C/C++及内核技术
...我们到底应该给用户带来什么，让我们的效率提高，或者如何让整个行业的交易成本降低，我想现在所有的认知都会成为未来生存的障碍。
要改造他们、为他们植入移动互联网的基因，这样才能提高整个内部的效率，进而打造...
Join between tables in two different databases?
In MySQL, I have two different databases -- let's call them A and B .
4 Answers
4
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