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What's the difference between TRUNCATE and DELETE in SQL
... table, and you're really sure that you want to do it, and you do not have foreign keys against the tables, then a TRUNCATE is probably going to be faster than a DELETE.
Various system-specific issues have to be considered, as detailed below.
Statement type
Delete is DML, Truncate is DDL (What ...
How to terminate a python subprocess launched with shell=True
...s group so as to enable sending a signal to all the process in the groups. For that, you should attach a session id to the parent process of the spawned/child processes, which is a shell in your case. This will make it the group leader of the processes. So now, when a signal is sent to the process g...
MySQL Cannot drop index needed in a foreign key constraint
...rent index but keep getting the error MySQL Cannot drop index needed in a foreign key constraint
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How to override the copy/deepcopy operations for a Python object?
... deepcopy in the copy module. I've used copy.copy and copy.deepcopy before successfully, but this is the first time I've actually gone about overloading the __copy__ and __deepcopy__ methods. I've already Googled around and looked through the built-in Python modules to look for instances o...
GROUP_CONCAT ORDER BY
...T can be problematic, over at Coders'Co. we have some sort of a workaround for that (we need it for Rax/Impala). If you need the GROUP_CONCAT result with an ORDER BY clause in IMPALA, take a look at this blog post: http://raxdb.com/blog/sorting-by-regex/
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How to handle ListView click in Android
...ANDROID_SDK/samples/ApiDemos/src/com/example/android/apis/view/List14.java for more details
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What is the best way to add options to a select from a JavaScript object with jQuery?
What is the best method for adding options to a <select> from a JavaScript object using jQuery?
36 Answers
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Role/Purpose of ContextLoaderListener in Spring?
...why I am asking because application live since 7-8 months. web.xml is here for your reference.
– Amogh
Apr 10 '17 at 15:04
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How do I submit disabled input in ASP.NET MVC?
...sn't gray out the field. Here is an example I am using: <%: Html.TextBoxFor(model => model.p1, new { @readonly = "readonly" }) %> how can I gray it out so visually it looks like it is not editable. Better yet can we use something similar to LabelFor, I tried LabelFor but it only gets the Di...
How to programmatically set style attribute in a view
...h a thing as a StateListDrawable which lets you define different drawables for each state the your Button can be in, whether focused, selected, pressed, disabled and so on.
For example, to get your button to change colour when it's pressed, you could define an XML file called res/drawable/my_button...