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SQL query return data from multiple tables

...I-89 syntax (and if you are used to 89, may seem much less intuitive - but all I can say is to try it) as it is much easier to understand when the queries start getting more complex. Why use it? Is there a performance gain? The short answer is no, but it is easier to read once you get used to it. It...
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How to deny access to a file in .htaccess

...nes from the parent). So you can have: <Files "log.txt"> Order Allow,Deny Deny from all </Files> For Apache 2.4+, you'd use: <Files "log.txt"> Require all denied </Files> In an htaccess file in your inscription directory. Or you can use mod_rewrite to sort of...
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How do you find the sum of all the numbers in an array in Java?

I'm having a problem finding the sum of all of the integers in an array in Java. I cannot find any useful method in the Math class for this. ...
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Clear back stack using fragments

...tBackStackEntryCount(); ++i) { fm.popBackStack(); } But could equally have used something like: ((AppCompatActivity)getContext()).getSupportFragmentManager().popBackStack(String name, FragmentManager.POP_BACK_STACK_INCLUSIVE) Which will pop all states up to the named one. You can then j...
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Can I catch multiple Java exceptions in the same catch clause?

...tch (IOException | SQLException ex) { ... } Remember, though, that if all the exceptions belong to the same class hierarchy, you can simply catch that base exception type. Also note that you cannot catch both ExceptionA and ExceptionB in the same block if ExceptionB is inherited, either direct...
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Acronyms in CamelCase [closed]

...n you use an abbreviation or acronym that is two characters long, put them all in caps; When the acronym is longer than two chars, use a capital for the first character. So, in your specific case, getUnescoProperties() is correct. ...
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Convert JavaScript String to be all lower case?

How can I convert a JavaScript string value to be in all lower case letters? 14 Answers ...
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Remove characters from NSString?

...f the 'spaces' are well behaved ASCII value=32 (%20) characters. To remove ALL possible white-space chars use Jim Dovey's solution below. – Linasses Apr 28 at 11:23 add a comm...
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What are the performance characteristics of sqlite with very large database files? [closed]

...a single table, or multiple tables. Each table had about 8 columns, almost all integers, and 4 indices. The idea was to insert enough data until sqlite files were about 50GB. Single Table I tried to insert multiple rows into a sqlite file with just one table. When the file was about 7GB (sorry I ...
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Catch multiple exceptions at once?

...ore lines, try to imagine if you are dealing with file IO for example, and all you want to do is catch those exceptions and do some log messaging, but only those you expect coming from your file IO methods. Then you often have to deal with a larger number (about 5 or more) different types of excepti...