Useful tips for everyday
How do you calculate observed correlation? How to Calculate a Correlation Find the mean of all the x-values. Find the standard deviation of all the…
Can garage remotes be hacked? Yes, garage door openers can be hacked. Older garage door openers use a “fixed code” which makes it incredibly easy.…
What are semaphores and mutexes? A mutex is an object but semaphore is an integer variable. A mutex object allows multiple process threads to access…
Why does my Bluetooth keep disconnecting and reconnecting iPhone? First of all, some faulty updates are the culprits behind the iOS 14/13 Bluetooth disconnecting. Then,…
Why is rsync taking so long? This is because the delta algorithm is assumed to only be faster than a whole file transfer when transferring…
How are CSV files used in AWK Stack Exchange? Both of those files are CSV format. This produced a separate CSV file which contained all…
What is the trigger for insert and update in MySQL? After each INSERT OR UPDATE on my table (‘ achatscharges ‘) the trigger should check…
How do I see current running queries in Azure SQL? I would like to have a query to check in Azure sql database, where I…
Is the parent child relationship column editable in Oracle? Both tree columns and the grid columns (except for parent child relationship columns) are editable unless…
What does it mean if I can smell my clutch? If you happen to notice your car emitting a burning smell, similar to burning rubber,…