大约有 47,000 项符合查询结果（耗时：0.0436秒） [XML]
ActiveRecord: size vs count
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edited Jul 10 '12 at 22:15
Jo Liss
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MySQL - Get row number on select
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Take a look at this.
Change your query to:
SET @rank=0;
SELECT @rank:=@rank+1 AS rank, itemID, COUNT(*) as ordercount
FROM orders
GROUP BY itemID
ORDER BY ordercount DESC;
SELECT @rank;
The last select is your count.
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How can I find the length of a number?
...eparadox
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Remove border radius from Select tag in bootstrap 3
...arance: none;
-moz-appearance: none;
background-position: right 50%;
background-repeat: no-repeat;
background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAAMCAYAAABSgIzaAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAyJpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/e...
Django: Display Choice Value
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answered Dec 1 '10 at 5:36
jMylesjMyles
9,74466 gold badges3737 silver badges5151 bronze badges
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Minimum and maximum date
...Javascript Date object. I found that the minimum date is something like 200000 B.C., but I couldn't get any reference about it.
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Golang: How to pad a number with zeros when printing?
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The fmt package can do this for you:
fmt.Printf("|%06d|%6d|\n", 12, 345)
Notice the 0 in %06d, that will make it a width of 6 and pad it with zeros. The second one will pad with spaces.
You can see it in action here: http://play.golang.org/p/cinDspMccp
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Is there a standard naming convention for git tags? [closed]
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170
Version 1.0.0 of Semantic Versioning, by Tom Preston-Werner of GitHub fame, had a sub-specificat...
How to reference the initial commit?
...newer, you can use the --max-parents option:
$ git rev-list --max-parents=0 HEAD
Otherwise, you can get list of all parentless (root) commits accessible from current branch using:
$ git rev-list --parents HEAD | egrep "^[a-f0-9]{40}$"
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