Guidelines

What is the difference between static and dynamic graph? A static chart, as the name implies, will not change once it is drawn: it is…

How do you stop scientific notation in SQL? First REPLACE zeros with spaces, then RTRIM to get rid of all trailing spaces (formerly zeros), then…

How does router ID work in OSPF? By default, when the OSPF process initializes, it selects the highest IP address on a router as the…

What is Arduino optocoupler? Optocouplers are digital switches. They work by using an LED emitter paired with a photo detector transistor. This means they can…

What is the historical timeline? A historical timeline is a method of highlighting important historical dates, terms, figures, and events in a chronological fashion. Historical…

What is the difference between Samsung US version and international version? Only the international versions are carrier unlocked. The other difference is that the USA…

How do I enable excerpt in WordPress? To add the excerpt, login to your WordPress dashboard and go to Settings >> Reading. Now scroll down…

Is clustered index ordered? Clustered Index. A clustered index defines the order in which data is physically stored in a table. Table data can be…

Can you jailbreak an iPhone 5? UPDATE: iPhone 5 units running iOS 6.0 through 6.1. 2 can be jailbroken using evasi0n. Not only is this…

How do I change my iMessage from email to phone number? Open the Messages app and click “Messages” in the Menu Bar, followed by “Preferences.”…