vu eng301 Mid Term Subjective Solved Past Paper No.2

An entity-relationship (ER) diagram is a specialized graphic that illustrates the interrelationships between entities in a database. ER diagrams often use symbols to represent three different types of information. Boxes are commonly used to represent entities. Diamonds are normally used to represent relationships and ovals are used to represent attributes.

Consider the example of a database that contains information on the residents of a city. The ER diagram shown in the image above contains two entities -- people and cities. There is a single "Lives In" relationship. In our example, due to space constraints, there is only one attribute associated with each entity. People have names and cities have populations. In a real-world example, each one of these would likely have many different attributes.

Coordinating Conjunctions

The short, simple conjunctions are called "coordinating conjunctions":

and, but, or, nor, for, yet, so

A coordinating conjunction joins parts of a sentence (for example words or independent clauses) that are grammatically equal or similar. A coordinating conjunction shows that the elements it joins are similar in importance and structure:

In a text, table contain columns and rows, in which each columns and rows have the unique value and properties through which data can be handled easily

1. to manage and
2. updated easily.
3. sorting easily.
4. to access readily.