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What is the difference between onBlur and onChange attribute in HTML?
...t basic events
– stackdave
Jan 19 '18 at 8:04
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Difference between static STATIC_URL and STATIC_ROOT on Django
...hailvssuhailvs
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Loop through Map in Groovy?
... 'Android':'2.3.3',
'Nokia':'Symbian',
'Windows':'WM8'
]
map.each{ k, v -> println "${k}:${v}" }
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T-SQL datetime rounded to nearest minute and nearest hours with using functions
In SQL server 2008, I would like to get datetime column rounded to nearest hour and nearest minute preferably with existing functions in 2008.
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Ruby Regexp group matching, assign variables on 1 line
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edited Jan 25 '13 at 18:25
answered Feb 16 '12 at 1:00
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dplyr summarise: Equivalent of “.drop=FALSE” to keep groups with zero length in output
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Since dplyr 0.8 group_by gained the .drop argument that does just what you asked for:
df = data.frame(a=rep(1:3,4), b=rep(1:2,6))
df$b = factor(df$b, levels=1:3)
df %>%
group_by(b, .drop=FALSE) %>%
summarise(count_a=length(a))
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Retrieving the last record in each group - MySQL
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MySQL 8.0 now supports windowing functions, like almost all popular SQL implementations. With this standard syntax, we can write greatest-n-per-group queries:
WITH ranked_messages AS (
SELECT m.*, ROW_NUMBER() OVER (PARTITION BY...
how do i do an insert with DATETIME now inside of SQL server mgmt studio
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answered Jun 18 '10 at 18:05
Craig StuntzCraig Stuntz
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Why do you need to create a cursor when querying a sqlite database?
... edited Dec 7 '17 at 5:13
user8554766
answered Nov 30 '12 at 4:52
Basel ShishaniBasel Shishani
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How to only find files in a given directory, and ignore subdirectories using bash
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Mark LongairMark Longair
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