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How do you run a single query through mysql from the command line?
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mysql -u <user> -p -e "select * from schema.table"
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What is the Swift equivalent of respondsToSelector?
...ional unwrapper operator. This allows you to call a method on an object if and only if the object exists (not nil) and the method is implemented.
In the case where you still need respondsToSelector:, it is still there as part of the NSObject protocol.
If you are calling respondsToSelector: on an O...
Receiving “fatal: Not a git repository” when attempting to remote add a Git repo
....git folder is gone. Is git init the same as delete the repository folder, and then git clone .... All I need to do is a pull
– Francisco Corrales Morales
May 5 '14 at 21:34
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How do I find a specific table in my EDMX model quickly?
...designer:
Go to the Properties tab:
In the dropdown box at the top, select your table. You should then see it highlighted in the designer.
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java.lang.ClassNotFoundException: Didn't find class on path: dexpathlist
...d a similar problem, here's my solution:
Right click on your project and select Properties.
Select Java Build Path from the menu on the left.
Select the Order and Export tab.
From the list make sure the libraries or external jars you added to your project are checked.
Finally, clean your project &...
Install a Python package into a different directory using pip?
I know the obvious answer is to use virtualenv and virtualenvwrapper, but for various reasons I can't/don't want to do that.
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Google Play Services Library update and missing symbol @integer/google_play_services_version
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control click -> properties -> android -> libraries, add -> select the project you just imported -> ok
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Postgresql query between date ranges
... things become simpler if you use >= start AND < end.
For example:
SELECT
user_id
FROM
user_logs
WHERE
login_date >= '2014-02-01'
AND login_date < '2014-03-01'
In this case you still need to calculate the start date of the month you need, but that should be straight forw...
What's the Point of Multiple Redis Databases?
...e instances lets you take advantage of multiple cores. If you use database selection you will have to refactor when upgrading. Monitoring and managing multiple instances is not difficult nor painful.
Indeed, you would get far better metrics on each db by segregation based on instance. Each instanc...
How to find the JVM version from a program?
..."Java(TM) SE Runtime Environment" "Java(TM) 2 Runtime Environment, Standard Edition" Undocumented
java.runtime.version "12+33" "1.8.0_201-b09" "1.5.0_22-b03" Undocumented
java.class.v...