How do I use prepared statements in PostgreSQL?

How do I use prepared statements in PostgreSQL?

Prepared statements in PostgreSQL allow you to execute the same SQL statement repeatedly with high efficiency. You can create a prepared statement using the PREPARE command, followed by the SQL query. For example: PREPARE stmt_name AS SELECT * FROM table_name WHERE column_name = $1;.

What are the benefits of using prepared statements?

The benefits include improved performance, as the SQL statement is parsed and planned only once, and enhanced security by preventing SQL injection attacks.

Can you show me an example of executing a prepared statement?

Sure! After preparing the statement, you can execute it using the EXECUTE command. For example: EXECUTE stmt_name('value'); This will run the prepared statement with 'value' as the parameter.

Are there any limitations to using prepared statements?

Yes, prepared statements can only be used with the same data types as defined in the preparation. Also, they may not be suitable for very dynamic queries.