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Fast way to discover the row count of a table in PostgreSQL
...acy depends on more factors:
Distribution of row size. If a given block happens to hold wider than usual rows, the count is lower than usual etc.
Dead tuples or a FILLFACTOR occupy space per block. If unevenly distributed across the table, the estimate may be off.
General rounding errors.
In mos...
How to get a user's client IP address in ASP.NET?
...will be the address at their router, so every device inside the house will appear on the outside to be the same, but the router uses NAT to ensure that traffic is routed to each device correctly. For users accessing from an office environment the address may well be the same for all users. Sites tha...
Why am I getting a NoClassDefFoundError in Java?
I am getting a NoClassDefFoundError when I run my Java application. What is typically the cause of this?
27 Answers
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How to parse JSON using Node.js? [closed]
...re you can see and play with this answer online (the parsing example is in app.js file - then click on the run button and see the result in the terminal): link you can modify the code and see the impact...
– nathan g
Jan 6 '15 at 8:56
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What size should TabBar images be?
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hmmm that is happening... I will ask designer to make default images for tab bar they way apple support... thanks
– Fahim Parkar
Aug 5 '13 at 22:35
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Should I avoid 'async void' event handlers?
... @AlexHopeO'Connor: It's been a while since I've worked with a WPF app, but I've used solutions similar to that in the past. I.e., make the ICommand.Execute method async void; I consider this acceptable since ICommand.Execute is logically an event handler.
– Stephen Cle...
No visible cause for “Unexpected token ILLEGAL”
...U+200B characters. It seems the tool uses that character to control word-wrapping on long strings.
UPDATE 2013-01-07
After the latest jsfiddle update, it's now showing the character as a red dot like codepen does. Apparently, it's also not inserting U+200B characters on its own anymore, so this pro...
Simplest SOAP example
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I am developing cross-platform app in nativescript for android/ios. I want to use SOAP web services. Please guide me for the same. I used above code for SOAP request & i want SOAP response format, how to handle response. Please review my question - sta...
Should JAVA_HOME point to JDK or JRE?
...rally, it does not matter if you point it at JRE or JDK. It depends on the application which uses it. Ant documentation says you should point it at JDK to get all Ant's features.
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When should we call System.exit in Java
...ile or shell script you'd be able to get this value and get an idea if the application was successful.
It would make a quite an impact if you called System.exit(0) on an application deployed to an application server (think about it before you try it).
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