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How to use count and group by at the same select statement

I have an sql select query that has a group by. I want to count all the records after the group by statement. Is there a way for this directly from sql? For example, having a table with users I want to select the different towns and the total number of users ...
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Removing an item from a select box

How do I remove items from, or add items to, a select box? I'm running jQuery, should that make the task easier. Below is an example select box. ...
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Do NSUserDefaults persist through an Update to an app in the Appstore?

...ngs app. What we find is that on an Install the version number gets loaded from the app bundle - therefore the version number is correct. On an update however the version number doesn't change. This gives the impression the user is running a previous version of the app. We don't have any logic linke...
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Perforce for Git users? [closed]

...l of the files that are available on the server. A workspace view lets you select just the set that you care about. It's important to note that a workspace can map content from multiple depots, but can only map content from one server. To compare Perforce to Git in this regard, with Git you pick an...
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What does it mean by select 1 from table?

... SELECT 1 FROM TABLE_NAME means, "Return 1 from the table". It is pretty unremarkable on its own, so normally it will be used with WHERE and often EXISTS (as @gbn notes, this is not necessarily best practice, it is, however, c...
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How to set selected value on select using selectpicker plugin from bootstrap

I'm using the Bootstrap-Select plugin like this: 18 Answers 18 ...
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SQL JOIN and different types of JOINs

... There are relatively new LATERAL JOIN .. SELECT * FROM r1, LATERAL fx(r1) – Pavel Stehule Jul 30 '13 at 11:52 13 ...
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What does Docker add to lxc-tools (the userspace LXC tools)?

... From the Docker FAQ: Docker is not a replacement for lxc. "lxc" refers to capabilities of the linux kernel (specifically namespaces and control groups) which allow sandboxing processes from one another, and controlling their...
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MySQL INNER JOIN select only one row from second table

...have multiple associated payments in the payments table. I would like to select all users who have payments, but only select their latest payment. I'm trying this SQL but i've never tried nested SQL statements before so I want to know what i'm doing wrong. Appreciate the help ...
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jQuery Get Selected Option From Dropdown

Usually I use $("#id").val() to return the value of the selected option, but this time it doesn't work. The selected tag has the id aioConceptName ...