Useful tips for everyday
What are three methods of data validation? Types of validation Validation type How it works Length check Checks the data isn’t too short or too…
What happens when you decrease the input voltage? As stated previously, decreasing the input voltage will cause an increase in input current which leads to…
Why is third normal form ( 3NF ) considered adequate? All possible candidate keys in above relation are {A, E, CD, BC} All attribute are…
Is it possible to increase the size of A varchar column? For SQL Server I could not find a clear statement on this but the…
What is the main fuel source for hybrid electric aircraft? Developing hybrid-electric aircraft could be part of the solution. Similar to hybrid cars, the technology…
Can we use GROUP BY with case statement? The case statement in SQL returns a value on a specified condition. We can use a Case…
How to draw background picture for 2D game? Nowadays there two major ways to develop first-rate background for 2D games. One of them uses 2D…
What Zafira is being recalled? The Vauxhall Zafira B people carrier is being recalled for the third time in four years due to renewed safety…
Can a scatter plot be used to find a relationship between two variables? Scatter plots are used to observe relationships between variables. The example scatter…
Do Macs support Ethernet? You can use Ethernet to connect to the internet, either through an Ethernet network or through a DSL or cable modem.…