Useful tips for everyday
What is noise in data acquisition? Noise is unavoidable in PC based data acquisition systems. There is board induced noise which can be measured by…
How do I find the current row ID? $(function() { var bid, trid; $(‘#test tr’). click(function() { trid = $(this). attr(‘id’); // table row ID…
What are the user and group permissions for Apache? Apache is run as user www-data and group www-data. Server web root is /var/www We need…
Which is the best fit for Generalized Additive Models? Generalized additive models are very flexible, and provide excellent fit for both linear and nonlinear relationships…
What is the alt attribute used for when displaying images on a Web page? The required alt attribute specifies an alternate text for an image,…
Is Facebook using MySQL? Facebook uses MYSQL as the primary database management system for all the structured data storage such as the different wall posts,…
How do I change the default value in a column? In Object Explorer, right-click the table with columns for which you want to change the…
What is redundant data in SQL? Data redundancy occurs when the same piece of data is stored in two or more separate places and is…
Does rsync copy unchanged files? However – it takes approximately 2.5 hours every day (i run this every day), to get it done. There is…
Is PHP 5 a security risk? At the end of 2018, PHP will stop security updates and support for some of its previous versions. This…