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In addition, normalization helps with the reduction of table and row size. Creating primary and foreign key constraints will reduce the number of empty or null values in columns and reduces the overall size of the database. Normalization has yet another great advantage, referential integrity. Referential Integrity means that one column
Data 3
in a table has to relate to a column in another table. It is the ability to take important information or relate data from one table to another through a similar attribute. For example, in order for an employee to have a record in the PAY_TBL table, that employee would have to have a record in the EMPLOYEE_TBL table...
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