Create a Trigger to check for the existence of SQL data in an insert command.
Use a Trigger with SQL REGEXP to check for the exact data pattern.
Use an SQL Exists command within a trigger to check for existing data.
By the end of this project, you will validate MySQL data in a MySQL database using SQL Triggers in MySQL Workbench. MySQL is a widely used relational database. Often data is validated by applications before being inserted into a database. It is a good idea to validate data at the database level, since applications may use inconsistent validation leaving the data at risk. MySQL workbench provides a User Interface to MySQL that allows the creation of triggers to perform validation before an insertion or update is performed.
SQL Triggers
Mysql Workbench
SQL REGEXP
SQL Validation
MySQL
In a video that plays in a split-screen with your work area, your instructor will walk you through these steps:
Analyze an existing employees database table to Validate.
Create a SQL Trigger to check for the null data.
Use a Trigger decision construct with SQL to check for required strings.
Use a Trigger with SQL REGEXP to check for the exact data pattern.
Use an SQL Exists command within a trigger to check for existing data.
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