Database Administration Questions

Using BODMAS law,

3 x 3 + 3 - 3 + 3 =

3 x 3 = 12

= 12 + 3 - 3 + 3

=  9 + 3

= 12

Hence, 3 x 3 + 3 - 3 + 3 = 12.

Local :

Only available to the current Db connection for current user and are cleared when connection is closed.

Multiple users can’t share a local temporary table.

Global:

Available to any connection once created. They are cleared when the last connection is closed.

Can be shared by multiple user sessions

Therefore the answer for What travels around the world but stays in one spot is STAMP or any other thing that acts as a stamp does.

Ex. the letter in the envelope etc...

Since, Several things have the possibility, but the word travel evokes that it would move. 

A project has a beginning and an end and passes through several phases of development known as life cycle phases. Every project has certain phases of development. A clear understanding of these phases allows managers and executives to maintain control of the project more efficiently.
These phases are varied depending upon the industry involved but all follow the same basic steps.

How Important is Project Life Cycle::

1. This is a tried and tested method for delivering projects on time, within budget and to the expected quality targets.

2. Aids communication and helps define roles within the project organisation as it provides a framework for the project that is visible and understood by all members of the project.

3. The project lifecycle will allow the project manager to link progress directly to each phase and recognise the completion of each phase

4. The phases within the project lifecycle provide an understanding of the evolution of the project, being able to identify areas that need greater attention at different times such as risk management in the early stages and more Project Evaluation Reviews during the Implementation stage.

5. At each stage, approval is generally required from outside the project team before proceeding to the next stage.

6. The project life cycle also allows for the gate procedure to be used.

7. At each stage, approval is generally required from outside the project team before proceeding to the next stage.

While eating a watermelon, we all go along the red and stops at green.

A promise. 

The Promise made to somebody by you can be break but you cannot touch it.

There are two IP address assigned to each device on a Wi-Fi network.

An Internal (Private) and an External (Public) IP address.

Internal IP address is used for communication between Your computer and a smartphone or whatever devices that are connected to that Wifi network. This is unique for each. If they are same the system cannot differentiate between each device.

While, the External IP address is that visible to the the internet - the websites, the internet connected Apps so on. By default, Routers with NAT (all routers today have it) assign same Public IP address to all devices under its network.

A Paper.