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is of a type that is invalid for use as a key column in an index

... | edited Apr 16 at 20:06 urig 12.6k1616 gold badges8282 silver badges138138 bronze badges a...
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How to close tag properly?

... 51 <img src='stackoverflow.png' /> Works fine and closes the tag properly. Best to add the ...
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How do I delete specific lines in Notepad++?

... | edited Nov 18 '15 at 21:23 Peter Mortensen 26.5k2121 gold badges9292 silver badges122122 bronze badges ...
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How can I round down a number in Javascript?

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How to change color in markdown cells ipython/jupyter notebook?

... 147 You can simply use raw html tags like foo <font color='red'>bar</font> foo Be a...
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How to edit log message already committed in Subversion?

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How do you copy and paste into Git Bash

... 1035 Press Insert. Also, to copy from the window, try clicking the console's window icon (topleft...
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How do I get a string format of the current date time, in python?

For example, on July 5, 2010, I would like to calculate the string 4 Answers 4 ...
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Easiest way to open a download window without navigating away from the page

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Regex to check whether a string contains only numbers [duplicate]

I get false on both "123" and "123f" . I would like to check if the hash only contains numbers. Did I miss something? 21...