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What's the difference between MyISAM and InnoDB? [duplicate]
...es made by two or more DML operations handled as single unit of work, with all of the changes either applied, or all the changes reverted) then you would choose the InnoDB engine, since these features are absent from the MyISAM engine.
Those are the two biggest differences. Another big difference is...
Static method behavior in multi-threaded environment in java
...p. In which case all sorts of things might happen. But as Hans points out, Strings are immutable (cannot be changed) so we're safe if this is the only object being "shared".
So many threads can be running the same method. They might not be running at the same time - it depends how many cores you ha...
How to get the current working directory in Java?
...
public class JavaApplication {
public static void main(String[] args) {
System.out.println("Working Directory = " + System.getProperty("user.dir"));
}
}
This will print a complete absolute path from where your application was initialized.
From the documentation:
ja...
Why does cURL return error “(23) Failed writing body”?
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No. It might help with small documents but when it is too large to fit in the buffer cat uses the error will reappear.You could use -s to silence all error messages (and progress) if you don't need them.
– Kaworu
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Getting the HTTP Referrer in ASP.NET
... ViewState["PreviousPageUrl"] = Request.UrlReferrer.ToString();
– JonH
Sep 23 '15 at 16:52
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Ant task to run an Ant target only if a file exists?
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Available and Condition
<target name="check-abc">
<available file="abc.txt" property="abc.present"/>
</target>
<target name="do-if-abc" depends="check-abc" if="abc.present">
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</target>
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Find all files in a directory with extension .txt in Python
How can I find all the files in a directory having the extension .txt in python?
26 Answers
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Why can't you modify the data returned by a Mongoose Query (ex: findById)
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Btw @JohnnyHK just wanted to say thanks again. A year and a half later was helping a client debug something. He spent a weekend trying to figure something out, turns out it was because he was trying to modify the Mongoose Object ;P
– Toli
J...
mongoDB/mongoose: unique if not null
...the sparse option to true when defining the index. As in:
email : {type: String, trim: true, index: true, unique: true, sparse: true}
Or in the shell:
db.users.ensureIndex({email: 1}, {unique: true, sparse: true});
Note that a unique, sparse index still does not allow multiple docs with an em...
Globally override key binding in Emacs
How can I set a key binding that globally overrides and takes precedence over all other bindings for that key? I want to override all major/minor mode maps and make sure my binding is always in effect.
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