Useful tips for everyday
How to make CentOS / RHEL 7 FIPS 140-2 compliant? To make CentOS/RHEL 7 compliant with the Federal Information Processing Standard Publication (FIPS) 140-2, some…
How do I get adb logs from my Android? Using ADB Enable USB Debugging on your device. Connect usb cable to the phone. Go to…
Where to store a list in a table? If you need to query on the list, then store it in a table. If you always…
How do I test the speed of my external hard drive Mac? Know the Speed of Your Mac External Hard Drive Using App a) Download…
How do I make two columns unique in MySQL? To add a unique constraint, you need to use two components: ALTER TABLE – to change…
What is population sampling? Population sampling is the process of taking a subset of subjects that is representative of the entire population. The sample must…
When to use mixed effect model? Mixed effects models are useful when we have data with more than one source of random variability. For example,…
Can Alexa run automations? One of the best updates to have been introduced to the Echo family of devices is Alexa Routines, which enable you…
Can we insert NULL value in primary column? Question: Can we have NULL Value in the Primary Key Column? Answer: No. We can’t have a…
How do you calculate the power of alternating current? As in DC circuits, the instantaneous electric power in an AC circuit is given by P=VI…