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SQL - find records from one table which don't exist in another
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yes - MySQL manual suggests that this is normal for an 'EXISTS' query
– Alnitak
Dec 17 '08 at 9:31
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Creation timestamp and last update timestamp with Hibernate and MySQL
For a certain Hibernate entity we have a requirement to store its creation time and the last time it was updated. How would you design this?
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How do I add indices to MySQL tables?
...n "applied" to the data and the EXPLAIN query shows that there is no index for the field.
– Michael
Jun 9 '10 at 1:56
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what is reverse() in Django
...) and you want to redirect the user to /foo/ (often the case on successful form submission).
You could just do:
return HttpResponseRedirect('/foo/')
But what if you want to change the url in future? You'd have to update your urls.py and all references to it in your code. This violates DRY (Don't...
jQuery to retrieve and set selected option value of html select element
...opDownList("CoinTypes", (SelectList)ViewBag.RequiredLevel, new { @class = "form-control",@style="height: 21px;margin-top: 5px;"}) but $('#CoinTypes').val(@ViewBag.CoinType); is not selecting
– Nithin Paul
Feb 27 '15 at 9:14
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Correct way of using JQuery-Mobile/Phonegap together?
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For all those who say it doesn't work - the order of declaring script matters. First include jquery, THEN THIS CODE inside a script element, then jquery mobile js.
– Manish
May 18 '13 at...
URL rewriting with PHP
...([0-9]+)$ /picture.php?id=$1
This will tell Apache to enable mod_rewrite for this folder, and if it gets asked a URL matching the regular expression it rewrites it internally to what you want, without the end user seeing it. Easy, but inflexible, so if you need more power:
The PHP route
Put the ...
sql query to return differences between two tables
...t not in B, than the columns which come from B will be NULL, and similarly for those, which are present in B and not in A, the columns from A will be null.
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Make a div fill up the remaining width
...ng a left/right margin the same as the two side divs, it's own contents is forced to sit between them.
Note that the "middle div" goes after the "right div" in the HTML
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How do I execute inserts and updates in an Alembic upgrade script?
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What you are asking for is a data migration, as opposed to the schema migration that is most prevalent in the Alembic docs.
This answer assumes you are using declarative (as opposed to class-Mapper-Table or core) to define your models. It shoul...