Data Integrity

Data integrity is one of the most critical aspects of any database system. It is important that the data adhere to predefined set of rules, as determined by database administrator, application developer and also follow the obvious or natural validation. "Data Integrity" ensures the quality of the data in the database and it's enforcement prevents entry of any invalid data into the database tables. You may find a complete tutorial on this subject here, along with few possible questions asked in job interview or university viva, answered with explanations and examples. Please click : https://crazy4db.blogspot.in/2012/04/data-integrity.html

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