Useful tips for everyday
How to insert on duplicate update in PostgreSQL? You can have a WHERE clause on your UPDATE (letting you effectively turn ON CONFLICT UPDATE into…
How to remove duplicates but keep the rest of the row values? Click Data > Filter to disable Filter, and remove the formulas as you…
How do I create a new document library? On the menu bar, select New, and then select Document library. Enter a name for the new…
Is there an app to stream any radio station you want? TuneIn Radio (free – iOS|Android) has an intuitive interface that makes it a snap…
How do I stop a node from restarting in red? Pressing Ctrl-C or closing the window does not stop the service; it keeps running in…
How do I link a drop-down list to a Data in Google Sheets? How to add a drop-down list in Google Sheets Select “Data Validation.”…
What is the main problem of using virtual memory? Using virtual memory slows the computer down because copying to a hard disk takes much longer…
How do you calculate plating surface area? Simply place an imaginary grid of 1” squares over the part, and count the whole squares. Then go…
How do you calculate PB probability? Formula for the probability of A and B (independent events): p(A and B) = p(A) * p(B). If the…
When do you use filtering of time series? This is an oft- used and oft-abused method of accentuating certain frequencies and removing others. The technique…