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MySQL Error 1093 - Can't specify target table for update in FROM clause
...lease see other answers to this question
In MySQL, you can't modify the same table which you use in the SELECT part.
This behaviour is documented at:
http://dev.mysql.com/doc/refman/5.6/en/update.html
Maybe you can just join the table to itself
If the logic is simple enough to re-shape the query,...
Are database triggers evil? [closed]
...y hurt you with unintended (and very mysterious) consequences.
This just means they need to be carefully used for the proper circumstances; which in my experience is limited to relational integrity issues (sometimes with finer granularity than you can get declaratively); and usually not for busine...
Real world use of JMS/message queues? [closed]
...And was wondering what real world use have people here used JMS or similar message queue technologies for ?
11 Answers
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How to get hex color value rather than RGB value?
Using the following jQuery will get the RGB value of an element's background color:
19 Answers
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How do I make an http request using cookies on Android?
....HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.cookie.Cookie;
import org.apache.ht...
How do I connect to this localhost from another computer on the same network?
...y working on a project and I would like to test it out on two laptops at home where one laptop connects to the localhost on the other. I am using XAMPP. How do I do this?
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Why avoid increment (“++”) and decrement (“--”) operators in JavaScript?
...instead of
array[++i] = foo;
Anything beyond that can be confusing to some programmers and is just not worth it in my view. For loops are an exception, as the use of the increment operator is idiomatic and thus always clear.
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Xcode duplicate line
There is a Duplicate command in the Edit Menu (with a default shortcut of ⌘ D ), but it is (as Halley pointed out) meant for duplication in the Interface Builder part of Xcode.
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Getting error: Peer authentication failed for user “postgres”, when trying to get pgsql working with
...f both options according to the official PostgreSQL docs on authentication methods.
Peer authentication
The peer authentication method works by obtaining the client's
operating system user name from the kernel and using it as the allowed
database user name (with optional user name mapping)....
How to pause / sleep thread or process in Android?
I want to make a pause between two lines of code, Let me explain a bit:
12 Answers
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