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On Duplicate Key Update same as insert
...natively, you can use:
INSERT INTO table (id,a,b,c,d,e,f,g)
VALUES (1,2,3,4,5,6,7,8)
ON DUPLICATE KEY
UPDATE a=a, b=b, c=c, d=d, e=e, f=f, g=g;
To get the id from LAST_INSERT_ID; you need to specify the backend app you're using for the same.
For LuaSQL, a conn:getlastautoid() fetches the va...
vbscript output to console
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edited May 24 '11 at 8:36
shoosh
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程序员才能听得懂的笑话 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...成标准然后告诉每个人：“我们就是这么设计的。”
4、换一个电灯泡需要几个C++程序员？你还在用面向过程的思维考虑问题。一个设计良好的电灯泡类必然封装了换灯泡的方法，所以你要做的就是调用“换电灯泡”方法。
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How to do something to each file in a directory with a batch script
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yoel halb
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answered Oct 7 '08 at 22:51
Franci PenovFranci Penov
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Setting Windows PowerShell environment variables
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JaredParJaredPar
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What is the difference between graph search and tree search?
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edited May 24 '19 at 9:33
answered Mar 7 '13 at 20:50
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When creating a service with sc.exe how to pass in context parameters?
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MhmdMhmd
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How do I find all of the symlinks in a directory tree?
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edited Jun 4 '14 at 21:12
chris Frisina
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Which C++ idioms are deprecated in C++11?
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edited Jan 13 '19 at 20:14
Peter Mortensen
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How do I concatenate or merge arrays in Swift?
...s with +, building a new array
let c = a + b
print(c) // [1.0, 2.0, 3.0, 4.0, 5.0, 6.0]
or append one array to the other with += (or append):
a += b
// Or:
a.append(contentsOf: b) // Swift 3
a.appendContentsOf(b) // Swift 2
a.extend(b) // Swift 1.2
print(a) // [1.0, 2.0, 3.0,...