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NULL values inside NOT IN clause

...Logic can be a bit confusing at first but it is essential to understand in order to write correct queries in TSQL Another article I would recommend is SQL Aggregate Functions and NULL. share | imp...
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“Undefined reference to” template class constructor [duplicate]

...ations will be needed; and we can't expect it to compile for every type in order to ensure this problem never happens! (cola<int>, cola<char>, cola<ostream>, cola< cola<int> > ... and so on ...) The two answers are: Tell the compiler, at the end of cola.cpp, which pa...
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cannot convert data (type interface {}) to type string: need type assertion

...Even if i is an interface type, []i is not interface type. As a result, in order to convert []i to its value type, we have to do it individually: // var items []i for _, item := range items { value, ok := item.(T) dosomethingWith(value) } Performance As for performance, it can be slower ...
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How to emulate GPS location in the Android Emulator?

... Mind the order, lon before lat! – Christoph Apr 14 '14 at 21:48 15 ...
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100% Min Height CSS layout

...:1em; background:#ddd url("../csslayout.gif") 98% 10px no-repeat; border-bottom:6px double gray; } div#header p { font-style:italic; font-size:1.1em; margin:0; } div#content { padding:1em 1em 5em; /* bottom padding for footer */ } div#content p { ...
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MySQL, better to insert NULL or empty string?

...of the question and only focuses on tangentially relevant facts (NULL sort order and length? These don't matter). On most text data input types there is not a difference between "no response" and "empty response", so I think this is a great question that deserves a better answer. ...
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Can we have multiple “WITH AS” in single sql - Oracle SQL

... -- SET2 projected 10/29/2013 10:43:26 AM Follow the order in which it should be initialized in Common Table Expressions share | improve this answer | f...
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Building executable jar with maven?

... Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity. ...
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How to compare two dates?

...f one comparand is naive and the other is aware, TypeError is raised if an order comparison is attempted. For equality comparisons, naive instances are never equal to aware instances. If both comparands are aware, and have the same tzinfo attribute, the common tzinfo attribute is ignored and the ba...
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Why do you need to invoke an anonymous function on the same line?

...de will not "leak" outside the scope. This is very useful in JavaScript in order not to pollute the global scope. share | improve this answer | follow | ...