How to use Primary Key Constraints and Foreign Key Constraints to enforce database integrity in Oracle? Difference between Relational Algebra and Relational Calculus Constraints in DBMS Difference between hiera
Components of DBMS Database Architecture Types of Database Model DBMS - ER Model ER Model: Basic Concepts ER Model: Creating ER Diagram ER Model: Generalization and Specialization DBMS - Relational Model Codd's 12 rule of RDBMS Basic Concepts of RDBMS Relational Algebra Relational Calculus ER...
CREATE table Student( s_id int NOT NULL CHECK(s_id > 0), Name varchar(60) NOT NULL, Age int ); The above query will restrict thes_idvalue to be greater than zero. UsingCHECKconstraint at Column Level ALTER table Student ADD CHECK(s_id > 0); ...
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