Constraints

·       Introduction to Constraints

·       Purpose of Constraints

·       Types of Constraints in Oracle

·       NOT NULL Constraint

·       UNIQUE Constraint

·       PRIMARY KEY Constraint

·       FOREIGN KEY Constraint

·       CHECK Constraint

·       DEFAULT Constraint

·       Column-Level Constraints

·       Table-Level Constraints

·       Creating Constraints (CREATE TABLE)

·       Adding Constraints to Existing Tables (ALTER TABLE)

·       Dropping Constraints (ALTER TABLE / DROP CONSTRAINT)

·       Naming Constraints

·       Composite Primary Key

·       Composite Unique Key

·       Foreign Key with ON DELETE CASCADE

·       Foreign Key with ON DELETE SET NULL

·       Enabling and Disabling Constraints

·       Deferrable Constraints

·       Non-Deferrable Constraints

·       Immediate vs Deferred Constraint Checking

·       Constraint Validation

·       Constraint Exceptions and Errors

·       Constraints and Data Integrity

·       Constraints vs Triggers

·       Best Practices for Constraints

·       Performance Considerations with Constraints

·       Using Constraints in Queries