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Pandas count(distinct) equivalent
...ing pandas as a db substitute as I have multiple databases (oracle, mssql, etc) and I am unable to make a sequence of commands to a SQL equivalent.
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SQL command to display history of queries
...ng before next session unless you edit the configuration files (e.g. edit /etc/mysql/my.cnf, then restart to apply changes).
Now, if you'd like you can tail -f /var/log/mysql/mysql.log
More info here: Server System Variables
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How do I set default terminal to terminator? [closed]
...ose an emulator. You can just pick /usr/bin/terminator.
System Defaults
/etc/xdg/xfce4/helpers.rc
User Defaults
/home/USER/.config/xfce4
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AngularJS : When to use service instead of factory
...nstantiate, is because then you can't do this (add things to the prototype/etc):
app.factory('CarFactory', function() {
function Car(numCylinder) {
this.dealer="Bad";
this.numCylinder = numCylinder
};
Car.prototype.breakCylinder = function() {
this.numCylinder -=...
Spring DAO vs Spring ORM vs Spring JDBC
...that exceptions linked to the underlying technology (JDBC, Hibernate, JPA, etc.) are consistently translated into the proper DataAccessException subclass.
As an example, suppose you're now using Hibernate, and your service layer catches HibernateException in order to react to it. If you change to J...
How to generate and validate a software license key?
...? For example, time restraints, concurrent user count, modules to install, etc.?
– Carlo
Dec 4 '13 at 21:01
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Starting the week on Monday with isoWeekday()
...ekDay = 2; // say our weeks start on tuesday, for monday you would type 1, etc.
var startOfPeriod = moment("2013-06-23T00:00:00"),
// how many days do we have to substract?
var daysToSubtract = moment(startOfPeriod).isoWeekday() >= myIsoWeekDay ?
moment(startOfPeriod).isoWeekday() - myIsoWe...
What is the difference between an Azure Web Site and an Azure Web Role
...ps, modify registry settings, install performance counters, fine-tune IIS, etc.
Ability to split an app up into tiers (maybe Web Role for front end, Worker Role for backend processing) and scale independently
Ability to RDP into your VM for debugging purposes
Network isolation
Dedicated virtual IP a...
Is there a difference between authentication and authorization?
...uthenticating a user (by checking login/password credentials, certificates etc), whereas Authorization is used more in the Business Logic of an application.
For example, in an application, a user might login and be authenticated, but not authorized to perform certain functions.
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Can you pass parameters to an AngularJS controller on creation?
...for communicating with an API to update properties of a user, name, email, etc. Each user has an 'id' which is passed from the server when the profile page is viewed.
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