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How to do 3 table JOIN in UPDATE query?
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UPDATE TABLE_A a
JOIN TABLE_B b ON a.join_col = b.join_col AND a.colu<em>mem>n_a = b.colu<em>mem>n_b
JOIN TABLE_C c ON [condition]
SET a.colu<em>mem>n_c = a.colu<em>mem>n_c + 1
EDIT:
For general Update join :
UPDATE TABLEA a
JOIN TABLEB b ON a.join_colA = b.join_colB
SET a.colu<em>mem>nToUpdate = [so<em>mem>ething...
How can you encode a string to Base64 in JavaScript?
I have a PHP script that can encode a PNG i<em>mem>age to a Base64 string.
26 Answers
26
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scale I<em>mem>age in an UIButton to AspectFit?
I want to add an i<em>mem>age to a UIButton, and also want to scale <em>mem>y i<em>mem>age to fit with the UIButton (<em>mem>ake i<em>mem>age s<em>mem>aller). Please show <em>mem>e how to do it.
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<em>Mem>ultiple working directories with Git?
I'<em>mem> not sure if this is so<em>mem>ething supported by Git, but in theory it see<em>mem>s like it should work to <em>mem>e.
4 Answers
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Can you re<em>mem>ove ele<em>mem>ents fro<em>mem> a std::list while iterating through it?
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You have to incre<em>mem>ent the iterator first (with i++) and then re<em>mem>ove the previous ele<em>mem>ent (e.g., by using the returned value fro<em>mem> i++). You can change the code to a while loop like so:
std::list&a<em>mem>p;lt;ite<em>mem>*&a<em>mem>p;gt;::iterator i = ite<em>mem>s.begin();
whil...
How to un-sub<em>mem>odule a Git sub<em>mem>odule?
What are the best practices for un-sub<em>mem>oduling a Git sub<em>mem>odule, bringing all the code back into the core repository?
12 Ans...
Understanding ibeacon distancing
... ibeacon (beacon/ Bluetooth-lowenergy/BLE) can work. Is there any true docu<em>mem>entation on how far exactly an ibeacon can <em>mem>easure. Lets say I a<em>mem> 300 feet away...is it possible for an ibeacon to detect this?
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What is the Linux equivalent to DOS pause?
...o pause execution until the user presses a key. In DOS, this is easily acco<em>mem>plished with the "pause" co<em>mem><em>mem>and. Is there a Linux equivalent I can use in <em>mem>y script?
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How to deal with floating point nu<em>mem>ber precision in JavaScript?
I have the following du<em>mem><em>mem>y test script:
42 Answers
42
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Calling Objective-C <em>mem>ethod fro<em>mem> C++ <em>mem>e<em>mem>ber function?
I have a class ( EAGLView ) which calls a <em>mem>e<em>mem>ber function of a C++ class without proble<em>mem>s. Now, the proble<em>mem> is that I need to call in that C++ class a objective-C function [context renderbufferStorage:GL_RENDERBUFFER fro<em>mem>Drawable:(CAEAGLLayer*)self.layer]; which I cannot do in C++ syntax...