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How to list records with date from the last 10 days?
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SELECT Table.date
FROM Table
WHERE date > current_date - interval '10' day;
I prefer that format as it makes things easier to read (but it is the same as current_date - 10).
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improv...
What should every JavaScript programmer know? [closed]
...ockford's work on this front is definitely worth reading (although I don't 100% agree with him on which the “Good Parts” are).
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edited May 23 '17 at 12:10
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Converting between datetime, Timestamp and datetime64
...mport numpy
>>> numpy.datetime64('2002-06-28T01:00:00.000000000+0100').astype(datetime)
datetime.datetime(2002, 6, 28, 0, 0)
>>> numpy.__version__
'1.6.2' # current version available via pip install numpy
I can reproduce the long value on numpy-1.8.0 installed as:
pip install g...
What does the “assert” keyword do? [duplicate]
...nableassertions that is.)
Formally, the Java Language Specification: 14.10. The assert Statement says the following:
14.10. The assert Statement
An assertion is an assert statement containing a boolean expression. An assertion is either enabled or disabled. If the assertion is enabled, exec...
How to use R's ellipsis feature when writing your own function?
...are language type. First object is a symbol - list, second is expression 1:10 and so on. That explain why [-1L] is needed: it removes expected symbol from provided arguments in ... (cause it is always a list).
As Dirk states substitute returns "parse tree the unevaluated expression".
When you call m...
Add 10 seconds to a Date
How can I add 10 seconds to a JavaScript date object?
10 Answers
10
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Add st, nd, rd and th (ordinal) suffix to a number
...n '14) accomplishes this:
function ordinal_suffix_of(i) {
var j = i % 10,
k = i % 100;
if (j == 1 && k != 11) {
return i + "st";
}
if (j == 2 && k != 12) {
return i + "nd";
}
if (j == 3 && k != 13) {
return i + "rd";
...
How do I read / convert an InputStream into a String in Java?
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Using InputStreamReader and StringBuilder (JDK)
final int bufferSize = 1024;
final char[] buffer = new char[bufferSize];
final StringBuilder out = new StringBuilder();
Reader in = new InputStreamReader(stream, StandardCharsets.UTF_8);
int charsRead;
while((charsRead = in.read(buffer, 0, buffer.l...
typeof for RegExp
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answered Dec 2 '10 at 20:08
CleitonCleiton
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How do I replace NA values with zeros in an R dataframe?
...ent in @gsk3 answer. A simple example:
> m <- matrix(sample(c(NA, 1:10), 100, replace = TRUE), 10)
> d <- as.data.frame(m)
V1 V2 V3 V4 V5 V6 V7 V8 V9 V10
1 4 3 NA 3 7 6 6 10 6 5
2 9 8 9 5 10 NA 2 1 7 2
3 1 1 6 3 6 NA 1 4 1 6
4 NA 4 NA 7 10 2 NA 4 ...