Is top keyword in SQL?

What is the use of top keyword in SQL?

The SQL SELECT TOP Clause The SELECT TOP clause is used to specify the number of records to return. The SELECT TOP clause is useful on large tables with thousands of records. Returning a large number of records can impact performance.

How do you select a top in SQL?

Example - Using TOP keyword For example: SELECT TOP(5) contact_id, last_name, first_name FROM contacts WHERE last_name = 'Anderson' ORDER BY contact_id; This SQL SELECT TOP example would select the first 5 records from the contacts table where the last_name is 'Anderson'.

Is Top available in MySQL?

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.

Does top work in Oracle SQL?

No, Oracle does not support TOP . As you point out, the best approach is to use rownum .