Examples of Business-Critical Integrity Constraints. Databases contain integrity constraints to prevent chaotic events from happening, such as shipping a product to a customer with no address ...

Examples include triggers and referential integrity, as well as the primary topic of this month’s column, check constraints. Check Constraints are Supported in all Major DBMSs. Check constraints are ...

This example downloads the SAS data set STUDENTS in the library WORK on the remote host to the library WORK on the local host. Any non-referential integrity constraints defined for the input data set ...

config.active_record.schema_format = :sql Simply put, sexy_pg_constraints adds a number of additional attributes that you can pass to an add_column or change_column invocation within your migration.