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Vim Regex Capture Groups [bau -> byau : ceu -> cyeu]
... use \v, meaning that in the pattern after it all ASCII characters except '0'-'9', 'a'-'z', 'A'-'Z' and '_' have a special meaning:
:%s/\v(\w)(\w\w)/\1y\2/g
See:
:help \(
:help \v
share
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impr...
Dynamic SQL - EXEC(@SQL) versus EXEC SP_EXECUTESQL(@SQL)
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answered Feb 13 '09 at 23:29
Mitch WheatMitch Wheat
274k3939 gold badges435435 silver badges516516 bronze badges
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Weighted random numbers
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1) calculate the sum of all the weights
2) pick a random number that is 0 or greater and is less than the sum of the weights
3) go through the items one at a time, subtracting their weight from your random number, until you get the item where the random number is less than that item's weight
Ps...
Unique constraint that allows empty values in MySQL
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edited Oct 31 '12 at 19:00
EricC
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answered Aug 28 ...
SQL standard to escape column names?
...il Bourque
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answered May 25 '10 at 1:49
Dean HardingDean Harding
65.8k...
Gradle alternate to mvn install
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sdk/build.gradle:
apply plugin: "maven"
group = "foo"
version = "1.0"
example/build.gradle:
repositories {
mavenLocal()
}
dependencies {
compile "foo:sdk:1.0"
}
$sdk> gradle install
$example> gradle build
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Insert the carriage return character in vim
...n Unix ( \n newlines). I need to insert the carriage return character ( U+000D aka \r ). When I try to paste it from the clipboard ( "+p ) or type it using Ctrl + Shift + u - 000d , the linefeed is inserted ( U+000A ).
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Django fix Admin plural
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edited Sep 13 '17 at 20:37
Chase
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answered Apr...
With MySQL, how can I generate a column containing the record index in a table?
...@curRow + 1 AS row_number
FROM league_girl l
JOIN (SELECT @curRow := 0) r;
The JOIN (SELECT @curRow := 0) part allows the variable initialization without requiring a separate SET command.
Test case:
CREATE TABLE league_girl (position int, username varchar(10), score int);
INSERT INTO leagu...
How can I append a string to an existing field in MySQL?
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answered Sep 22 '10 at 1:09
Daniel VassalloDaniel Vassallo
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