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MySQL Advanced SQL Data Types Quiz

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Questions and Answers

Which SQL keyword is used to add a column in an existing table?

CREATE

ALTER

ADD CONSTRAINT

ADD (correct)

What does the SQL keyword 'FROM' specify?

Filters the result set based on a condition

Executes a stored procedure

Creates a new SQL database

Specifies the table on which to perform operations (correct)

When using SQL, what does the 'HAVING' keyword do?

Filters rows based on a condition after grouping (correct)

Adds a constraint after a table is created

Executes a stored procedure

Updates a view based on the result set of a SELECT statement

Which SQL keyword creates a unique index on a table with no duplicate values?

CREATE UNIQUE INDEX Signup and view all the answers

What is the purpose of the SQL keyword 'BACKUP DATABASE'?

Creates a back up of an existing database Signup and view all the answers

Which SQL keyword is used to change the data type of a column in a table?

ALTER COLUMN Signup and view all the answers

What is the data type for a very small integer in MySQL?

TINYINT Signup and view all the answers

Which data type in MySQL is suitable for storing large text strings?

LONGTEXT Signup and view all the answers

Which data type represents a date and time value in MySQL?

DATETIME Signup and view all the answers

'VARCHAR' in MySQL is used for storing:

Variable-length strings Signup and view all the answers

'DECIMAL or NUMERIC' in MySQL is used for storing:

Fixed-point numbers Signup and view all the answers

'ENUM' in MySQL allows a string object to have only one value chosen from:

A list of predefined values Signup and view all the answers