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Appropriate datatype for holding percent values?
...ent (e.g. 100.00% stored as 1.0000), I would store the data in a decimal(5,4) data type with a CHECK constraint that ensures that the values never exceed 1.0000 (assuming that is the cap) and never go below 0 (assuming that is the floor). If you are going to store their face value (e.g. 100.00% is s...
PatternSyntaxException: Illegal Repetition when using regex in Java
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edited Sep 24 '18 at 23:27
Swagga Ting
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How to style a JSON block in Github Wiki?
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C# nullable string error
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System.String is a reference type and already "nullable".
Nullable<T> and the ? suffix ar...
Java “user.dir” property - what exactly does it mean?
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Python: Convert timedelta to int in a dataframe
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Select rows of a matrix that meet a condition
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answered Mar 22 '11 at 13:04
neilfwsneilfws
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What are the differences between json and simplejson Python modules?
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json is simplejson, added to the stdlib. But since json was added in 2.6, simplejson has the adv...
Group by & count function in sqlalchemy
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edited Sep 22 '17 at 9:40
Dag Høidahl
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What is causing this ActiveRecord::ReadOnlyRecord error?
...d (hack)
Use :include => :card instead of :join => :card
Rails 2.3.4 and above
Most of the above no longer holds true, after September 10 2012:
using Record.find_by_sql is a viable option
:readonly => true is automatically inferred only if :joins was specified without an explicit :sele...