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How do I quickly rename a MySQL database (change schema name)?
The MySQL manual at MySQL covers this.
48 Answers
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Use jQuery to change an HTML tag?
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Please see my comment below...changing document structure to apply style is not the best approach.
– jrista
May 28 '09 at 1:38
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mongodb: insert if not exists
...h fields be set if inserting, and which fields be left alone if updating.
My solution was to create a unique index on the critera fields, perform an insert, and immediately afterward perform an update just on the 'updated' field.
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Run task only if host does not belong to a group
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Here's another way to do this:
- name: my command
command: echo stuff
when: "'groupname' not in group_names"
group_names is a magic variable as documented here: https://docs.ansible.com/ansible/latest/user_guide/playbooks_variables.html#accessing-information...
Is it possible to send a variable number of arguments to a JavaScript function?
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NB: I went ahead and wrote my own answer.
– Braden Best
May 27 '17 at 16:31
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What are the key differences between Scala and Groovy? [closed]
...hink. Groovy's real competition is JRuby and Jython.
Who's going to win? My crystal ball is as cracked as anybody else's.
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Downloading a file from spring controllers
...olution: stackoverflow.com/questions/16652760/…
– Dmytro Plekhotkin
Jul 14 '15 at 15:16
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@Powe...
What are the uses of the exec command in shell scripts? [closed]
... code that's bugging you we could justify its use.
Edit: I realised that my answer above is incomplete. There are two uses of exec in shells like ksh and bash - used for opening file descriptors. Here are some examples:
exec 3< thisfile # open "thisfile" for reading on file descript...
Java Reflection: How to get the name of a variable?
...el J. must be thinking of local variables.
– Michael Myers♦
Apr 13 '09 at 15:34
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@David: You n...
Throttling method calls to M requests in N seconds
... the next available token. You could even have threads waiting forever, in my point of view.
One solution is to have a minimum interval of time between two consecutive actions, and take actions in the same order as they were requested.
Here is an implementation:
public class LeakyBucket {
pro...