Quick Answer: What is the meaning of order by clause in SQL Mcq?

This set of MySQL Multiple Choice Questions & Answers (MCQs) focuses on “The order by Clauses – 1”. … Explanation: “ORDER BY” clause is used for sorting while “GROUP BY” clause is used for aggregation of fields.

What is the meaning of ORDER BY clause in my SQL?

The SQL ORDER BY clause is used to sort the data in ascending or descending order, based on one or more columns. Some databases sort the query results in an ascending order by default.

What is the default order of ORDER BY clause Mcq?

The ORDER BY keyword sorts the records in ascending order by default.

INTERESTING:  You asked: Why is MySQL so bad?

What is the meaning of GROUP BY clause in SQL Mcq?

Explanation: “GROUP BY” is used with aggregate functions. 8. … Explanation: “GROUP BY” clause s used for aggregation of field.

Which is the right answer to the following ORDER BY name ASC?

3. What is the significance of “ORDER BY emp_id ASC” in the following MySQL command? Explanation: Keyword “ASC” will sort the data in ascending order.

What is the meaning of ORDER BY clause in MySQL Mcq?

Explanation: “ORDER BY” clause is used for sorting while “GROUP BY” clause is used for aggregation of fields. …

What is ASC and DESC?

ASC: to sort the data in ascending order. DESC: to sort the data in descending order.

What does order by 1 do in SQL?

SQL Server allows you to sort the result set based on the ordinal positions of columns that appear in the select list. In this example, 1 means the first_name column and 2 means the last_name column.

What is the meaning of Group By clause in mysql?

The MYSQL GROUP BY Clause is used to collect data from multiple records and group the result by one or more column. It is generally used in a SELECT statement. You can also use some aggregate functions like COUNT, SUM, MIN, MAX, AVG etc. on the grouped column.

What is the difference between order by and group by Mcq?

Group by statement is used to group the rows that have the same value. Whereas Order by statement sort the result-set either in ascending or in descending order.

INTERESTING:  How do you make a long array in Java?

What is true for GROUP BY ORDER BY clause?

Answer: A. Processing order starts from FROM clause to get the table names, then restricting rows using WHERE clause, grouping them using GROUP BY clause, restricting groups using HAVING clause. ORDER BY clause is the last one to be processed to sort the final data set.

What is the meaning of GROUP BY?

The GROUP BY statement groups rows that have the same values into summary rows, like “find the number of customers in each country”. The GROUP BY statement is often used with aggregate functions ( COUNT() , MAX() , MIN() , SUM() , AVG() ) to group the result-set by one or more columns.

What is the difference between HAVING clause and WHERE clause Mcq?

WHERE Clause is used to filter the records from the table based on the specified condition. HAVING Clause is used to filter record from the groups based on the specified condition.

What is the default ordering of data using the ORDER BY clause how could it be changed?

The default order is ascending. The SQL ORDER BY clause is used with the SQL SELECT statement. Note: SQL ORDER BY clause always come at the end of a SELECT statement.

Which clause is mandatory with clause SELECT in mysql?

Explanation: “SELECT” clause is used to show all rows and columns that are mention with the query. 5. Can “SELECT” clause be used without the clause “FROM”?

Which of the following method corresponds to ORDER BY clause in SQL?

8. Which of the following method corresponds to Order by clause in SQL? Explanation: The sort() method orders the documents in the result set.

INTERESTING:  Where is the Java lang package?