question What is the purpose of the SQL Server PIVOT operator

Which SQL Server function is used to find the length of a string?

A. STRLEN()
B. LEN()
C. LENGTH()
D. STRINGLENGTH()

Which MySQL statement is used to change the structure of an existing table?

A. MODIFY TABLE
B. CHANGE TABLE
C. ALTER TABLE
D. UPDATE TABLE

In MySQL, what does the term "ACID" stand for in the context of transactions?

A. Atomicity, Consistency, Isolation, Durability
B. Association, Consistency, Isolation, Dependency
C. Atomicity, Consistency, Integration, Durability
D. Association, Commitment, Isolation, Dependency

What is the purpose of the SQL UNION operator?

A. Combine rows from two or more tables
B. Sort the result set
C. Combine rows into groups
D. Join multiple tables

In MySQL, what is the purpose of the AUTO_INCREMENT attribute?

A. Automatically increments the value of a column
B. Sets a column to a predefined value
C. Allows NULL values in a column
D. Adds a default value to a column

Which MySQL data type is used to store large text values?

A. VARCHAR
B. TEXT
C. BLOB
D. CHAR

In MySQL, what is the purpose of the FOREIGN KEY constraint?

A. Ensures unique values in a column
B. Establishes a link between two tables
C. Limits the number of rows returned
D. Sets a default value for a column

In MySQL, what is the purpose of the SHOW TABLES statement?

A. Display the structure of a table
B. Show the list of tables in a database
C. Display the content of a table
D. Show the indexes of a table

Which SQL statement is used to add a new column to an existing table?

A. ADD COLUMN
B. MODIFY COLUMN
C. INSERT COLUMN
D. CHANGE COLUMN

Which MySQL statement is used to grant all privileges to a user?

A. GRANT ALL PRIVILEGES
B. GRANT FULL ACCESS
C. GRANT SUPERUSER
D. GRANT ALL RIGHTS

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