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efficient circular buffer?

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Remove duplicate rows in MySQL

...ke so: ALTER IGNORE TABLE jobs ADD UNIQUE INDEX idx_name (site_id, title, company); This will drop all the duplicate rows. As an added benefit, future INSERTs that are duplicates will error out. As always, you may want to take a backup before running something like this... ...
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What is the difference between a stored procedure and a view?

... tables in a view and use the view to present the data as if the data were coming from a single table. A stored procedure uses parameters to do a function... whether it is updating and inserting data, or returning single values or data sets. Creating Views and Stored Procedures - has some informat...
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Angularjs loading screen on ajax request

..., I need to show a loading screen (a simple spinner) until ajax request is complete. Please suggest any idea with a code snippet. ...
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Adding event listeners to dynamically added elements using jQuery [duplicate]

...t element possible so it doesn't "bubble" up further then it needs to. I recommend you read up on event bubbling to get a better understanding. – Jack Jan 2 '19 at 20:26 ...
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Is it possible to make the -init method private in Objective-C?

...creating singletons. It's virtually always unnecessary and is just adding complication for no real significant advantage. Instead, just write your code such that your +sharedWhatever method is how you access a singleton, and document that as the way to get the singleton instance in your header. T...
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Cocoa: What's the difference between the frame and the bounds?

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Bash: Copy named files recursively, preserving folder structure

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Can't append element

...ike you're trying with the script tag), but when you do them with built-in commands things go better. Try this: var script = document.createElement( 'script' ); script.type = 'text/javascript'; script.src = url; $("#someElement").append( script ); From: JSON for jQuery ...
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What are database normal forms and can you give examples? [closed]

...so help me God"; as God is considered to be the one with authority when it comes to knowing if you're telling the truth. In the case of databases, we can say "The data depends on the key, the whole key and nothing but the key, so help me Codd". Ted Codd is the one who came up with the idea of relati...