WHAT IS TOP N in SQL?

What is a Top N query?

Top-N queries are queries that limit the result to a specific number of rows. These are often queries for the most recent or the “best” entries of a result set. For efficient execution, the ranking must be done with a pipelined order by .

What does \n mean in SQL?

The "N" prefix stands for National Language in the SQL-92 standard, and is used for representing Unicode characters.

Which SQL keyword is used to do ranking in top n analysis?

The SQL TOP clause is used to fetch a TOP N number or X percent records from a table. Note − All the databases do not support the TOP clause. For example MySQL supports the LIMIT clause to fetch limited number of records while Oracle uses the ROWNUM command to fetch a limited number of records.

How do I get top 5 rows in SQL?

SQL SELECT TOP Clause1SQL Server / MS Access Syntax. SELECT TOP number|percent column_name(s) FROM table_name;2MySQL Syntax. SELECT column_name(s) FROM table_name. LIMIT number;3Example. SELECT * FROM Persons. LIMIT 5;4Oracle Syntax. SELECT column_name(s) FROM table_name. WHERE ROWNUM <= number;5Example. SELECT * FROM Persons.