Useful tips for everyday
How to find out if a file exists? Return true the filename whose file descriptor number is file_descriptor is open and is associated with a…
Why is SQL UPDATE statement not updating table? I am having a problem getting this UPDATE statement to execute. No error is returned, it just…
How do you use GET command? Get-Command gets the commands from PowerShell modules and commands that were imported from other sessions. To get only commands…
How do you debug a child process? Set the debugger response to a program call of fork() or vfork(). A call to fork() or vfork()…
What are higher-order moments? High-order moments are moments beyond 4th-order moments. As with variance, skewness, and kurtosis, these are higher-order statistics, involving non-linear combinations of…
When storing passwords Why is Bcrypt a good choice for password hashing? It is based on Blowfish, but because it performs one-way encryption, it is…
Why is my PDF file not opening? If you seem to have trouble opening PDF files on your Windows computer, it is likely that it…
How much RAM does the Android OS use? The first Android phone, the T-Mobile G1, had 192MB of RAM. The Galaxy S20 Ultra has about…
Is it OK to cut coil springs? The only coil springs that can be safely cut are coil springs with tangential ends. Because Square ends…
How to plan a route with multiple stops? If the same route will be used on a regular basis, you can set up a scheduled…