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Why are Oracle table/column/index names limited to 30 characters?
...ine of code that goes something like
l_table_name VARCHAR2(30);
BEGIN
SELECT table_name
INTO l_table_name
FROM dba_tables
WHERE ...
to suddenly break because the DBA 15 years ago used VARCHAR2(30) rather than DBA_TABLES.TABLE_NAME%TYPE in the script would cause massive revolt. I w...
When someone writes a new programming language, what do they write it IN?
...
If you select an unsuited language for a task, it's your own fault. This can happen for any project, not just compilers/interpreters.
– ziggystar
Oct 27 '09 at 11:09
...
Append text to input field
...ple, but I would add one extra note to it. You should really cache jQuery selections, there is no reason to call $("#input-field-id") twice:
var input = $( "#input-field-id" );
input.val( input.val() + "more text" );
The other option, .val() can also take a function as an argument. This has the...
How do I detect when someone shakes an iPhone?
... // Put in code here to handle shake
}
if ( [super respondsToSelector:@selector(motionEnded:withEvent:)] )
[super motionEnded:motion withEvent:event];
}
- (BOOL)canBecomeFirstResponder
{ return YES; }
@end
You can easily transform any UIView (even system views) into a view ...
Conceptually, how does replay work in a game?
...ame visual result. If you need randomness, create a set of random numbers, select a seed value when the game is played, and save that seed value in the replay.
In general having randomness in a game is a bad idea. Even for things like multiplayer, you can't have half your players able to see aroun...
Chrome hangs after certain amount of data transfered - waiting for available socket
...(In Chrome only):
Go to the address bar and type chrome://net-internals.
Select Sockets from the menu.
Click on the Flush socket pools button.
This solution is not recommended because you shouldn't expect your visitors to follow these instructions to be able to view your site.
...
What is sharding and why is it important?
... a DBMS for which the locality is quite restricted (say, a user only fires selects with a 'where username = $my_username') it makes sense to put all the usernames starting with A-M on one server and all from N-Z on the other. By this you get near linear scaling for some queries.
Long story short: S...
Windows batch: formatted date into variable
..."Install MS SQL Server, connect with a SQL Client, and execute the command SELECT CONVERT(VARCHAR(16), GETDATE(), 112)".
– isapir
Oct 13 '17 at 20:38
2
...
WITH (NOLOCK) vs SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
...rence in certain circumstances.
So use WITH (NOLOCK) if the current data selected is allowed to be incorrect, as it might be rolled back later. This is mostly used when you want to increase performance, and the requirements on your application context allow it to take the risk that inconsistent da...
Visual Studio SP1 error: silverlight_sdk.msi is unavailable
... those "strange named" directories you have to check the date modified and select the most recent. Inside that directory you will find the silverlight_sdk.msi file.
This is the file that is needed to be pointed by the "Use source" field of the "Microsoft Silver Light 4 SDK" installation error messa...