How to Limit Query Results for PostgreSQL Databases
Many times users are only interested in either the first so many records returned from a query or a range of records returned from a query. PostgreSQL provides a mechanism for limiting query results using the limit and / or offset SQL syntax. Listed below are examples of SQL select queries using the limit and offset syntax. These include examples for returning the first N rows for a query, or a range of records from a query.
Example 1: Returning the first 100 rows from a table called employee:
select * from employee limit 100
Example 2: Returning 10 records from the table employee starting at row 5
select * from employee limit 10 offset 5
Many other databases also support limiting rows returned from queries. Listed below are links that show how to limit rows for other popular databases:
- Cassandra Limit Rows
- DB2 Limit Rows
- Derby Limit Rows
- Firebird Limit Rows
- H2 Limit Rows
- HSQLDB Limit Rows
- Informix Limit Rows
- Microsoft SQL Server Limit Rows
- MySQL Limit Rows
- Oracle Limit Rows
- Pervasive Limit Rows
- Redshift Limit Rows
- Salesforce Limit Rows
- SimpleDB Limit Rows
- SQLite Limit Rows
- Sybase Limit Rows
- Teradata Limit Rows
