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How to alter a column's data type in a PostgreSQL table?
...the following command into a PostgreSQL interactive terminal results in an error:
1 Answer
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Convert all strings in a list to int
...nteger only if the given string is entirely composed of numbers or else an error will be generated.
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How to fix Terminal not loading ~/.bashrc on OS X Lion [closed]
...rks fine when I'm in the ~ directory, but if I'm anywhere else, I get an error loading .bashrc
3 Answers
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Complex numbers usage in python [closed]
...owing example for complex numbers should be self explanatory including the error message at the end
>>> x=complex(1,2)
>>> print x
(1+2j)
>>> y=complex(3,4)
>>> print y
(3+4j)
>>> z=x+y
>>> print x
(1+2j)
>>> print z
(4+6j)
>>>...
“Cannot send session cache limiter - headers already sent” [duplicate]
...ery time I try to start a session on a particular page I get the following error:
1 Answer
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Best way to Format a Double value to 2 Decimal places [duplicate]
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No, there is no better way.
Actually you have an error in your pattern. What you want is:
DecimalFormat df = new DecimalFormat("#.00");
Note the "00", meaning exactly two decimal places.
If you use "#.##" (# means "optional" digit), it will drop trailing zeroes - ie ne...
Correct way to override Equals() and GetHashCode() [duplicate]
...commendationDTO : IEquatable<RecommendationDTO>... When i do i get a error: DataTransferObjects.RecommendationDTO does not implement interface member System.IEquatable<DataTransferObjects.RecommendationDTO>.Equals(DataTransferObjects.RecommendationDTO)
– Nugs
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How to create a link to a directory [closed]
... a new directory. To avoid "is not a directory: No such file or directory" error, as @trlkly comment, use relative path in the target, that is, using the example:
cd /home/jake/
ln -s /home/jake/doc/test/2000/something xxx
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SQL Server - inner join when updating [duplicate]
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this gives me ERROR: table name "ProductReviews" specified more than once in postgresql
– Johhan Santana
Apr 26 '17 at 16:54
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Charts for Android [closed]
...had a bit of trouble installing HoloGraphLibrary because of gradle version errors.
– MikeyE
Apr 14 '17 at 2:55
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