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What is the difference between partitioning and bucketing a table in Hive ?
...of buckets to store the data. This number is defined during table creation scripts.
Pros
Due to equal volumes of data in each partition, joins at Map side will be quicker.
Faster query response like partitioning
Cons
You can define number of buckets during table creation but loading of equal ...
How to select rows that have current day's timestamp?
...
See the difference: SQL-Fiddle Notice the FILTERED = 25 in the 2nd query.
– ypercubeᵀᴹ
Feb 8 '13 at 12:28
...
How to swap two variables in JavaScript
... b=2,
output=document.getElementById('output');
output.innerHTML="<p>Original: "+a+", "+b+"</p>";
b = [a, a = b][0];
output.innerHTML+="<p>Swapped: "+a+", "+b+"</p>";
<div id="output"></div>
...
Best practice to return errors in ASP.NET Web API
...eException and let it bubble to the Web API app, where then in my custom filter which captures it sending back a relevant message along with the correct status code.
I am not 100% sure on what's the best practice for this, but this is working for me currently so that's what I'm doing.
Update:
Sin...
Display the current time and date in an Android application
...ry{
TextView txtCurrentTime= (TextView)findViewById(R.id.lbltime);
Date dt = new Date();
int hours = dt.getHours();
int minutes = dt.getMinutes();
int seconds = dt.getSeconds();
String...
How do I unbind “hover” in jQuery?
...ntation has a more simple approach than the chained examples shown above (although they'll work just fine):
$("#myElement").unbind('mouseenter mouseleave');
As of jQuery 1.7, you are also able use $.on() and $.off() for event binding, so to unbind the hover event, you would use the simpler and ti...
Get users by name property using Firebase
...ref.child('users').child('123').on('value', function(snapshot) { ... })
Filter or order data in a list by key or attribute value:
// Get the last 10 users, ordered by key
ref.child('users').orderByKey().limitToLast(10).on('child_added', ...)
// Get all users whose age is >= 25
ref.child('users...
What's the difference between the 'ref' and 'out' keywords?
...pe? Since reference type is always pass by ref.
– faulty
Dec 24 '08 at 9:42
3
Yes. Value types in...
Getting file names without extensions
...Path.GetFileNameWithoutExtension(fi.Name));
builder.Append(", ");
}
Although I am surprised there isn't a way to get this directly from the FileInfo (or at least I can't see it).
share
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impro...
Apache VirtualHost 403 Forbidden
....3 (or maybe slightly earlier) added a new security feature that often results in this error. You would also see a log message of the form "client denied by server configuration". The feature is requiring a user identity to access a directory. It is turned on by DEFAULT in the httpd.conf that shi...