Useful tips for everyday
How do I see classes in Python? To list the methods for this class, one approach is to use the dir() function in Python. The…
How do I turn on Mission Control on my Mac? Open Mission Control Swipe up with three or four fingers on your trackpad, or double-tap…
What is if exists in SQL Server? The EXISTS operator returns TRUE or FALSE while the JOIN clause returns rows from another table. You use…
How can I check SQL Server database response time? Microsoft SQL Server Management Studio comes with Activity Monitor, which can be used to monitor the…
How does 3D printing in space work? Once in space, 3D printing has several key roles to play: The “zero-g” environment of space orbit opens…
Why are some special characters not allowed in passwords? Limiting the character set to alphanumerics limits the likelihood of a script or exploit getting past…
How to link a list item to a document library document? To do this I would create a custom column in the Requirements list called…
What happens when systemd stops and restarts a unit? Configures dependencies similar to Requires=, but limited to stopping and restarting of units. When systemd stops…
How do you communicate with HC 05? Connecting Phone to HC-05 Bluetooth Module In order to pair the module with your phone, open Bluetooth Settings…
How do you use an analog pin as output? In reality, the analog pins send pulses of 0V and 5V signals to get an output…