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Run a PostgreSQL .sql file using command line arguments
...rd:
Set the PGPASSWORD environment variable. For details see the manual: http://www.postgresql.org/docs/current/static/libpq-envars.html
Use a .pgpass file to store the password. For details see the manual: http://www.postgresql.org/docs/current/static/libpq-pgpass.html
Use "trust authentication" ...
Predicate in Java
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#include in .h or .c / .cpp?
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“On-line” (iterator) algorithms for estimating statistical median, mode, skewness, kurtosis?
...stimator to estimate arbitrary quantiles. In general, a quantile function (http://en.wikipedia.org/wiki/Quantile_function) tells you the value that divides the data into two fractions: p and 1-p. The following estimates this value incrementally:
quantile += eta * (sgn(sample - quantile) + 2.0 * p -...
Add a new element to an array without specifying the index in Bash
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How to convert a dictionary to query string in Python?
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Python - When to use file vs open
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How to convert lazy sequence to non-lazy in Clojure
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Group by multiple columns in dplyr, using string vector input
...oup_by_at(vars(one_of(columns))) %>%
summarize(Value = mean(value))
#compare plyr for reference
df2 <- plyr::ddply(data, columns, plyr::summarize, value=mean(value))
table(df1 == df2, useNA = 'ifany')
## TRUE
## 27
The output from your example question is as expected (see comparison to...
How do I restore a dump file from mysqldump?
... in the lower-left box and choose "Create New Schema"
MySQL Administrator http://img204.imageshack.us/img204/7528/adminsx9.th.gif enlarge image
Name the new schema (example: "dbn")
MySQL New Schema http://img262.imageshack.us/img262/4374/newwa4.th.gif enlarge image
Open Windows Command Prompt (cm...