Useful tips for everyday
How do I debug a segmentation fault GCC? Configure GCC with –enable-checking . Compile it with -g -O0 so that you can use gdb .…
What is CAPTCHA used for? CAPTCHA stands for the Completely Automated Public Turing test to tell Computers and Humans Apart. CAPTCHAs are tools you can…
How is group by having clause used in soql? Aggregated functions for GROUP BY clause: GROUP BY HAVING Clause is used in SOQL to apply…
Can we insert data into view in Oracle? YES, you can Update and Insert into view and that edit will be reflected on the original…
What is the difference between table constraint and column constraint? Column constraints and table constraints have the same function; the difference is in where you…
How do you test a thermal sensor? How to test a faulty thermocouple or resistance thermometer? Check if the -ve and +ve leads swapped. Check…
What is FTP in WiFi router? File Transfer Protocol (FTP) servers are useful especially if you are hosting files that will be accessed by remote…
What is a GAL device? The Generic Array Logic (also known as GAL and sometimes as gate array logic) device was an innovation of the…
What does kill system call do? The kill() system call can be used to send any signal to any process group or process. If sig…
What is the highest user role in WordPress? administrator role On a regular WordPress website, the administrator role is the most powerful user role. Users…