'Student id primary key' diaporamas de présentation

LSP 121

LSP 121. Normalization Queries (contd). * Normalization. Normalization is the process of efficiently organizing your data Normalizing your database can drastically improve its performance This becomes especially important with very large databases Normalization techniques include:

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ISP 121

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Primary key and foreign key relationships

Primary key and foreign key relationships. IST359 M005. Yang Wang ywang@syr.edu 342 Hinds http://blackboard.syr.edu. Cardinality. 1-1 relationship 1-many relationship Many-many relationship. 1-1 relationship. Students table student_id (primary key) student_ssn (foreign key)

183 views • 5 slides