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How to set a timer in android
...not change the UI)?
Use this the Java way:
http://docs.oracle.com/javase/1.5.0/docs/api/java/util/Timer.html
13 Answers
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How can I rename a field for all documents in MongoDB?
...d:x._id}, {$set:{"name.last":x.name.additional}, $unset:{"name.additional":1}});
}
}
db.foo.find().forEach(remap);
In MongoDB 3.2 you can also use
db.students.updateMany( {}, { $rename: { "oldname": "newname" } } )
The general syntax of this is
db.collection.updateMany(filter, update, optio...
How to convert int to char with leading zeros?
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@Scope(“prototype”) bean scope not creating new bean
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MySQL vs MongoDB 1000 reads
...nary json document)
So a b-tree lookup, and a binary page read. Log(n) + 1 IOs. If the indexes can reside entirely in memory, then 1 IO.
In MySQL with 20 tables, you have to perform:
One index lookup on the root table (again, assuming the entity is fetched by id)
With a clustered index, we can ...
How to check if an email address exists without sending an email?
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Create new user in MySQL and give it full access to one database
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edited Jan 3 '18 at 14:11
Flimm
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What's the difference between comma separated joins and join on syntax in MySQL? [duplicate]
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edited Oct 24 '17 at 3:13
answered Nov 22 '13 at 6:28
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Pry: show me the stack
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Use the pry-stack_explorer plugin, it allows you to move up and down the call-stack (with up and...
How do I access the host machine itself from the iPhone simulator
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The iOS Simulator uses the host machine network so you should be able to just use localhost or...