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How do I unlock a SQLite database?

How do I unlock the database so this will work? 35 Answers 35 ...
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Difference between method and function in Scala

... Jim has got this pretty much covered in his blog post, but I'm posting a briefing here for reference. First, let's see what the Scala Specification tell us. Chapter 3 (types) tell us about Function Types (3.2.9) and Method Types (3.3.1). ...
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Is it safe to delete a NULL pointer?

Is it safe to delete a NULL pointer? 7 Answers 7 ...
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MySQL: selecting rows where a column is null

... SQL NULL's special, and you have to do WHERE field IS NULL, as NULL cannot be equal to anything, including itself (ie: NULL = NULL is always false). See Rule 3 https://en.wikipedia.org/wiki/Codd%27s_12_rules ...
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What is the difference between a thread and a fiber?

What is the difference between a thread and a fiber? I've heard of fibers from ruby and I've read heard they're available in other languages, could somebody explain to me in simple terms what is the difference between a thread and a fiber. ...
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Can you explain the concept of streams?

I understand that a stream is a representation of a sequence of bytes. Each stream provides means for reading and writing bytes to its given backing store. But what is the point of the stream? Why isn't the backing store itself what we interact with? ...
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'this' vs $scope in AngularJS controllers

In the "Create Components" section of AngularJS's homepage , there is this example: 7 Answers ...
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How do I choose a HTTP status code in REST API for “Not Ready Yet, Try Again Later”? [closed]

...) associated with thingy #1234 to download. But it may be that the request is made at a time the file does not exist in the server but most definitely will be available at a later time. There's a batch process in the server that generates all the blobs for all the thingies. Thingy 1234 already exi...
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Best way to convert string to bytes in Python 3?

...ce[, encoding[, errors]]]) Return a new array of bytes. The bytearray type is a mutable sequence of integers in the range 0 <= x < 256. It has most of the usual methods of mutable sequences, described in Mutable Sequence Types, as well as most methods that the bytes type has, see Bytes and Byt...
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Database development mistakes made by application developers [closed]

What are common database development mistakes made by application developers? 40 Answers ...