Useful tips for everyday
How does the insert ignore statement in MySQL work? However, if you use the INSERT IGNORE statement, the rows with invalid data that cause the…
What is collector current in transistor? So for a bipolar NPN transistor to conduct the Collector is always more positive with respect to both the…
What is the current USB speed? USB Standards Standard Also Known As Max. Data Transfer Speed USB 1.1 Full Speed USB 12 Mbps USB 2.0…
How to stop spam with Postfix email server? How to stop spam / UCE with the Postfix mail transfer agent (MTA). Actual spam email is…
What is meant by external storage? (1) A hard drive, optical disc or solid state drive (SSD) that resides outside of the computer’s case, typically…
What is the difference between convolution and correlation? Convolution is a mathematical method of combining two signals to form a third signal. Correlation is also…
What are cases in Salesforce? A case is a customer’s question, feedback, or issue. Support agents can review cases to see how they can deliver…
What is the size of MongoDB database? BSON Documents The maximum BSON document size is 16 megabytes. The maximum document size helps ensure that a…
How do I delete unwanted entries in Grub? Remove Old Kernel Entries In the past, this meant opening up /boot/grub/menu. lst…but with Grub2, if we…
How many numbers can you add to a contact? 1 Answer. There is no limit as to how many numbers you can get on a…