question In SQL Server what is the purpose of the GROUP BY clause

Database

In SQL Server, what is the purpose of the GROUP BY clause?

A. Filter rows
B. Sort the result set
C. Combine rows into groups
D. Join multiple tables

The GROUP BY clause is used to combine rows into groups in SQL Server.

What is the purpose of the SQL Server RAISEERROR statement?

A. Suppress errors in a query
B. Display a custom error message
C. Count the number of errors in a query
D. Create a temporary error table

What is the purpose of the SQL LIMIT clause?

A. Filter rows
B. Sort the result set
C. Limit the number of rows returned
D. Join multiple tables

In Oracle, what is the purpose of the BETWEEN operator?

A. Filter rows based on a range of values
B. Sort the result set
C. Combine rows into groups
D. Search for a specified pattern in a column

Which Oracle statement is used to create a new table in a database?

A. CREATE TABLE
B. NEW TABLE
C. ADD TABLE
D. INSERT TABLE

Which Oracle clause is used to add an index to an existing table?

A. ADD INDEX
B. CREATE INDEX
C. INDEX TABLE
D. ALTER INDEX

What does SQL stand for in the context of Oracle Database?

A. Structured Question Language
B. Standard Query Language
C. Sequential Query Language
D. Structured Query Language

What is the purpose of the Oracle RANK() function?

A. Calculate the average value
B. Assign a rank to each row within a result set
C. Concatenate multiple rows
D. Find the length of a string

In MySQL, which type of index allows only unique values and nulls are considered distinct?

A. PRIMARY KEY
B. UNIQUE
C. FULLTEXT
D. INDEX

In SQL Server, what is the purpose of the SQL Server XML data type method value()?

A. Extract a single value from an XML string
B. Combine multiple XML values
C. Concatenate XML strings
D. Validate XML structure

What is the purpose of the SQL DISTINCT keyword?

A. Sort the result set
B. Filter rows
C. Eliminate duplicate values
D. Combine rows into groups