Computer Science, asked by ROHANDey1, 1 year ago

1.what is query why itis required?
2.whatis entity.why it is required?
3.write two tags to create the following.
5.football
6.cricket

those whi will be able to ans all he will be awarded as brainlist.

Answers

Answered by Róunak
2
Hey mate..
========

1).Queries are a way to ask a question about data that is stored in tables.

It is required for the following two reasons:---

▪ It allows us to select data from a table or tables as per our requirement.

▪They allows us to change and rearrange data and then use it as a source for formsand reports.

2) An entity is a thing or object in the real world i.e. distinguishable from all other objects.

It is required for the reasons that In programming, engineering, and probably many other contexts, the word is used to identify units, whether concrete things or abstract ideas, that have no ready name or label.

3) The following are the two tags :--

1) <ol> tag.

2) <li> tag.

#racks

ROHANDey1: nice raks
Answered by siddhartharao77
5
1. What is a query? Why is it required?

Definition: A query is a request for information from the database.

Uses:

(a) Databases store data in structured format, to access that data we should write queries.

(b) Queries are used to find specific data by filtering specific criteria.

Ex:

Write a query to retrieve all the records from employee table?

Select * from employee;



(2) What is an entity?Why is it required?

Definition: An entity can be a real-world object that can be easily identifiable.

Ex: In a school database, students, teachers, classes, and courses are entities.

Uses:

(1) All these entities have some attributes or properties that give them their identity.



3. <html>
   <body>
  <ol start = "5">
 <li>football</li>
 <li>cricket</li>
 </ol>
</body>
</html>


Hope this helps!

ROHANDey1: nice sid
siddhartharao77: :-))
Róunak: ^-^ as expected from you
siddhartharao77: :-))
ROHANDey1: nice one
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