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Truncating all tables in a Postgres database
I regularly need to delete all the data from my PostgreSQL database before a rebuild. How would I do this directly in SQL?
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MySql server startup error 'The server quit without updating PID file '
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worked for me. i checked the error file and said that it was becuase o file permissions. executed the chown command and worked. thanks!!
– Packet Tracer
Feb 26 '13 at 19:47
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How to find the port for MS SQL Server 2008?
... under the 'SQL native client configuration' item (which is version "11.0" for me) but under the SQL Server Network Configuration item (and on the IP Addresses tab of the TCP/IP protocol properties window, at the very bottom, in the setting TCP Dynamic Ports).
– Kenny Evitt
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Android; Check if file exists without creating a new one
...e, you are not creating a new File, it's just creating an object reference for that file and testing if it exists or not.
File file = new File(filePath);
if(file.exists())
//do something
share
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Modify UIImage renderingMode from a storyboard/xib file
...eRenderingMode)renderMode
{
NSAssert(self.image, @"Image must be set before setting rendering mode");
self.image = [self.image imageWithRenderingMode:renderMode];
}
@end
(Swift 4) Create an extension for UIImageView:
extension UIImageView {
func setImageRenderingMode(_ renderMode: UI...
data type not understood
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Take a full page screenshot with Firefox on the command-line
...t --fullpage
Find out more regarding screenshots and other features
For Firefox versions < 60:
Press Shift+F2 or go to Tools > Web Developer > Developer Toolbar to open a command line. Write:
screenshot
and press Enter in order to take a screenshot.
To fully answer the question,...
Triggering HTML5 Form Validation
I have a form with several different fieldsets. I have some Javascript that displays the field sets to the users one at a time. For browsers that support HTML5 validation, I'd love to make use of it. However, I need to do it on my terms. I'm using JQuery.
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How can I check if a value is a json object?
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Might also need to use a try / catch for exceptions if it is possible that parseJSON is going to be dealing with something other than JSON values (i.e. HTML)
– acorncom
Mar 22 '12 at 22:44
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Is there a Java API that can create rich Word documents? [closed]
...ns tables, graphs, a table of contents and text. What's a good API to use for this? How sure are you that it supports graphs, ToCs, and tables? What are some hidden gotcha's in using them?
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