[Check Point 12.1] Simple Queries in SQL – Chapter 12 Sumita Arora

These are also MySQL Grade 12 practical questions. This is Check Point 12.1, the first and the final checkpoint for questions based on what you might’ve learnt until the part making simple queries in SQL and paves the way for the next part, that is, MySQL Functions.

Sumita Arora Assignments (Checkpoint 12.1) for Class 12 Computer Science Chapter 12

Authored by Sumita Arora, this chapter introduces learners to the basics of database management, focusing on simple SQL queries. These assignments offer a gentle initiation, gradually building students’ confidence in crafting and executing SQL queries.

1. Maximum how many characters can be stored in a
(i) text literal
(ii) numeric literal?

Solution:

1. In MySQL, the “text” data type can store a maximum of 65,535 characters.
2. The length of a numeric literal depends on the data type being used. For example, an integer data type can typically store up to 10 digits, when bigint can up to 19 digits, while a double data type can store up to 15 significant digits.