大约有 43,000 项符合查询结果（耗时：0.0429秒） [XML]
Fetch the row which has the Max value for a column
...d AND t1."Date" < t2."Date")
WHERE t2.UserId IS NULL;
In other words: fetch the row from t1 where no other row exists with the same UserId and a greater Date.
(I put the identifier "Date" in delimiters because it's an SQL reserved word.)
In case if t1."Date" = t2."Date", doubling appears. Usuall...
Convert a char to upper case using regular expressions (EditPad Pro)
...
You can also capitalize the first letter of the match using \I1 and \I2 etc instead of $1 and $2.
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Objective-C class -> string like: [NSArray className] -> @“NSArray”
... the class, including its name, the methods it implements, the superclass, etc. NSStringFromClass just pulls the name of the class from this struct and converts it to an NSString. Don't store the class name in a static NSString, it won't offer any performance advantage.
– dream...
Error in SQL script: Only one statement is allowed per batch
...that PostDeploy. In such file you could have various commands like inserts etc.
Then you can use output of Database project as dacpac file for Data-Tier DB applications (Otherwise it's not included).
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Allow user to set up an SSH tunnel, but nothing else
...only may be tunneling, without an interactive shell, to set that shell in /etc/passwd to /usr/bin/tunnel_shell.
Just create the executable file /usr/bin/tunnel_shell with an infinite loop.
#!/bin/bash
trap '' 2 20 24
clear
echo -e "\r\n\033[32mSSH tunnel started, shell disabled by the system admin...
How to specify the order of CSS classes?
...ctors, you can specify things like "begins with", "ends with", "contains", etc. See example below using your same markup, but with attribute selectors.
[class$="extra"] {
color: #00529B;
border:1px solid #00529B;
background-color: #BDE5F8;
}
[class$="basic"] {
border: 1px solid #A...
angular.min.js.map not found, what is it exactly?
... as the minified js files and it'll stop complaining. The reason they get fetched is the
/*
//@ sourceMappingURL=angular.min.js.map
*/
at the end of angular.min.js. If you don't want to add the .map files you can remove those lines and it'll stop the fetch attempt, but if you plan on debugging it...
Should we pass a shared_ptr by reference or by value?
...n't that be taken into account as well (at least for constructor arguments etc where a the shared_ptr is going to be made a member of the class)?
– stijn
Jan 8 '13 at 11:12
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Any reason to prefer getClass() over instanceof when generating .equals()?
...compare types". The default is for this option to be unchecked and use .getClass() to compare types. Is there any reason I should prefer .getClass() over instanceof ?
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How to check if a value exists in an array in Ruby
...ED_METHODS = Set[:to_s, :to_i, :upcase, :downcase
# etc
]
def foo(what)
raise "Not allowed" unless ALLOWED_METHODS.include?(what.to_sym)
bar.send(what)
end
A quick test reveals that calling include? on a 10 element Set is about 3.5x faster than cal...