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Maximum Java heap size of a 32-bit JVM on a 64-bit OS

...expect to be hitting this limit you should strongly consider starting a parallel track validating a 64-bit JVM for your production environment so you have that ready for when the 32-bit environment breaks down. Otherwise you will have to do that work under pressure, which is never nice. Edit 201...
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How to get a list of column names on Sqlite3 database?

... PRAGMA table_info(table_name); will get you a list of all the column names. share | improve this answer | follow | ...
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MySQL search and replace some text in a field

... @inemanja, @Air without the WHERE clause you do an UPDATE on all the rows... – Alexis Wilke Jun 25 '15 at 3:37 7 ...
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Creating a config file in PHP

...ne simple but elegant way is to create a config.php file (or whatever you call it) that just returns an array: <?php return array( 'host' => 'localhost', 'username' => 'root', ); And then: $configs = include('config.php'); ...
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Get the client's IP address in socket.io

...it logs on git hub to figure this one out, but the following code does actually work for me now: var io = require('socket.io').listen(server); io.sockets.on('connection', function (socket) { var address = socket.handshake.address; console.log('New connection from ' + address.address + ':' + ad...
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Assert a function/method was not called using Mock

...y to test my application, but I want to assert that some function was not called. Mock docs talk about methods like mock.assert_called_with and mock.assert_called_once_with , but I didn't find anything like mock.assert_not_called or something related to verify mock was NOT called . ...
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Need to understand the usage of SemaphoreSlim

...at there won't be more than 10 workers doing this work at the same time. Calling WaitAsync on the semaphore produces a task that will be completed when that thread has been given "access" to that token. await-ing that task lets the program continue execution when it is "allowed" to do so. Having ...
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Install tkinter for Python

...: No module named 'tkinter' I Use(Python 3.7.5) – sqp_125 Dec 9 '19 at 18:30 Solution: sudo apt-get install python3.7-...
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WordPress asking for my FTP credentials to install plugins

I installed a WordPress blog in my local system. But when I try to add plugins from admin it asks for FTP access. What do I need to configure for WordPress to be able to upload without FTP? ...
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iPhone hide Navigation Bar only on first page

... hidden when the first view loads and then hidden when the "children" get called. Trouble is that I cannot find the event/action to trigger it to hide again when they get back to the root view.... ...