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How to fix: “No suitable driver found for jdbc:mysql://localhost/dbname” error when using pools? [du
I am trying to create a connection to my database, when I put test my code using the main method, it works seamlessly. However, when trying to access it through Tomcat 7, it fails with error:
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Using union and order by clause in mysql
I want to use order by with union in mysql query.
I am fetching different types of record based on different criteria from a table based on distance for a search on my site.
The first select query returns data related to the exact place search .
The 2nd select query returns data related to distance ...
How can I run a PHP script in the background after a form is submitted?
...on a notification website. In addition, I have a list of people who have signed up to receive these notifications via email and SMS message. This list is trivial as the moment (only pushing about 150), however it's enough to cause it takes upwards of a minute to cycle through the entire table of sub...
Bootstrap Element 100% Width
I want to create alternating 100% colored blocks. An "ideal" situation is illustrated as an attachment, as well as the current situation.
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Simple way to calculate median with MySQL
...pefully not too slow) way to calculate the median with MySQL? I've used AVG(x) for finding the mean, but I'm having a hard time finding a simple way of calculating the median. For now, I'm returning all the rows to PHP, doing a sort, and then picking the middle row, but surely there must be some s...
Truncate all tables in a MySQL database in one command?
... a database in one operation? I want to know if I can do this with one single query.
27 Answers
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How to do relative imports in Python?
Imagine this directory structure:
15 Answers
15
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You can't specify target table for update in FROM clause
... SELECT B
FROM myTable
INNER JOIN ...
)
That is, if you're doing an UPDATE/INSERT/DELETE on a table, you can't reference that table in an inner query (you can however reference a field from that outer table...)
The solution is to replace the instance of myTable in the sub-query with (...
JMS and AMQP - RabbitMQ
I am trying to understand what JMS and how it is connected to AMQP terminology.
I know JMS is an API and AMQP is a protocol.
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How to initialize all members of an array to the same value in Swift?
I have a large array in Swift. I want to initialize all members to the same value (i.e. it could be zero or some other value). What would be the best approach?
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