Three types of triggers are: BEFORE, AFTER and EXCEPTION.

More Questions from SQL for Database Construction

• A updatable view has its own data.
• The SQL statement used to create a view is CREATE VIEW.
• Standard SQL-92 views are constructed from SQL SELECT statements that do not contain the GROUP BY clause.
• When a foreign key column is created without a corresponding foreign key constraint, we have created a "casual relationship" between the two tables.
• The SQL MAKE TABLE command is used to construct tables, define columns, define column constraints and create relationships.
• A SQL view is a virtual table that is constructed from other tables or views.
• SQL has a JOIN ON syntax that can be used to create inner joins and outer joins.
• A benefit of using a stored procedure is that it can be distributed to client computers.

Discussion & Comments