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What is the PostgreSQL equivalent for ISNULL()

... | edited Jan 14 '12 at 2:28 Erwin Brandstetter 439k9696 gold badges809809 silver badges969969 bronze badges ...
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leading zeros in rails

...ed with padstr; otherwise, returns str. some_int = 5 some_int.to_s.rjust(2, '0') # => '05' some_int.to_s.rjust(5, '0') # => '00005' another_int = 150 another_int.to_s.rjust(2, '0') # => '150' another_int.to_s.rjust(3, '0') # => '150' another_int.to_s.rjust(5, '0') # => '00150' ...
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Appropriate datatype for holding percent values?

...ce value (e.g. 100.00% is stored as 100.00), then you should use decimal(5,2) with an appropriate CHECK constraint. Combined with a good column name, it makes it clear to other developers what the data is and how the data is stored in the column. ...
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In Intellij, how do I toggle between camel case and underscore spaced?

... | edited Oct 27 '17 at 8:19 Meo 10.1k33 gold badges3939 silver badges4949 bronze badges ans...
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Find XOR of all numbers in a given range

... 152 This is a pretty clever solution -- it exploits the fact that there is a pattern of results in t...
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Counting inversions in an array

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stash@{1} is ambiguous?

... 234 Your shell is eating your curly brackets, so while you say stash@{1}, git sees stash@1 and tha...
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how to ignore namespaces with XPath

... Dirk VollmarDirk Vollmar 157k5151 gold badges240240 silver badges300300 bronze badges 9 ...
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Why is MySQL's default collation latin1_swedish_ci?

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Crontab Day of the Week syntax

...e of days, such as MON, THU, etc: 0 - Sun Sunday 1 - Mon Monday 2 - Tue Tuesday 3 - Wed Wednesday 4 - Thu Thursday 5 - Fri Friday 6 - Sat Saturday 7 - Sun Sunday Graphically: ┌────────── minute (0 - 59) │ ┌───────...