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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
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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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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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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...
Android: Difference between onInterceptTouchEvent and dispatchTouchEvent?
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The best place to de<em>mem>ystify this is the source code. The docs are woefully inadequate about explaining this.
dispatchTouchEvent is actually defined on Activity, View and ViewGroup. Think of it as a controller which decides how to route the touc...
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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How to execute <em>mem>ongo co<em>mem><em>mem>ands through shell scripts?
I want to execute <em>mem>ongo co<em>mem><em>mem>ands in shell script, e.g. in a script test.sh :
22 Answers
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