Can we create stored procedure in redshift?

You can define an Amazon Redshift stored procedure using the PostgreSQL procedural language PL/pgSQL to perform a set of SQL queries and logical operations. The procedure is stored in the database and is available for any user with sufficient privileges to run.

What is stored procedure in redshift?

PDF. Stored procedures are commonly used to encapsulate logic for data transformation, data validation, and business-specific logic. By combining multiple SQL steps into a stored procedure, you can reduce round trips between your applications and the database.

How do you call a stored procedure in redshift?

Runs a stored procedure. The CALL command must include the procedure name and the input argument values. You must call a stored procedure by using the CALL statement. CALL can’t be part of any regular queries.

Do we have triggers in redshift?

1 Answer. Redshift does not support triggers because it’s a data warehousing system which is designed to be able to import large amounts of data in a limited time. So, if every row insert would be able to fire a trigger the performance of batch inserts would suffer.

Does redshift support PL SQL?

You can work with transaction control statements in the PL/pgSQL language that Amazon Redshift uses. For information about using the statements COMMIT, ROLLBACK, and TRUNCATE within a stored procedure, see Managing transactions.

Can we create stored procedure in PostgreSQL?

PostgreSQL allows you to extend the database functionality with user-defined functions by using various procedural languages, which are often referred to as stored procedures. With stored procedures you can create your own custom functions and reuse them in applications or as part of other database’s workflow.

How would you optimize a query or Stored Procedure?

SQL Server Stored Procedures Optimization Tips

1. Use stored procedures instead of heavy-duty queries.
2. Include the SET NOCOUNT ON statement in your stored procedures to stop the message indicating the number of rows affected by a Transact-SQL statement.
3. Call stored procedures using their fully qualified name.

How do you implement a trigger in redshift?

Is redshift compatible with Postgres?

Amazon Redshift is based on PostgreSQL. Some PostgreSQL features that are suited to smaller-scale OLTP processing, such as secondary indexes and efficient single-row data manipulation operations, have been omitted to improve performance. …