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SQL to find the number of distinct values in a column

...quency: SELECT column_name, COUNT(*) FROM table_name GROUP BY column_name ORDER BY 2 DESC; share | improve this answer | follow | ...
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python: SyntaxError: EOL while scanning string literal

...dows e.g. C:\Users\ The problem is that \ is an escape character and so in order to use it in strings you need to add one more \. Incorrect: C:\Users\ Correct: C:\\\Users\\\ share | improve thi...
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'Operation is not valid due to the current state of the object' error during postback

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How to present a simple alert message in java?

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How do I count unique values inside a list

... Counter(words).values() is nice. We are assuming the the count is in the order of first appearance of the list of words? I mean, I'm assuming the count will give us the count of a, then b, then c, then d... – Monica Heddneck Aug 19 '17 at 1:12 ...
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Removing “NUL” characters

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Where are the PostgreSQL logs on macOS?

... category IN( 'Reporting and Logging / Where to Log' , 'File Locations') ORDER BY category, name; In my case, it's in "/Library/PostgreSQL/8.4/data/pg_log" share | improve this answer ...
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Trim spaces from end of a NSString

...opy]; //pass it by reference to CFStringTrimSpace CFStringTrimWhiteSpace((__bridge CFMutableStringRef) stringToTrim); //stringToTrim is now "i needz trim" share | improve this answer | ...
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How to insert element as a first child?

...lement. Of course, append() also works, but the list is created in another order. – Roland Jun 14 '19 at 15:45 add a comment  |  ...
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How do I get the information from a meta tag with JavaScript?

... To get it working with OG tags add quotes to it like this_: var title = document.head.querySelector('[property="og:title"]'); – arpo May 8 '17 at 8:21 1 ...