関連ワード:  what is data integrity in database    what is data integrity in database management system    what is data integrity in database design    what is data consistency in database    what is data integrity in relational database    what is meant by data integrity in database    what is data integrity in the context of databases    what is the main role of data integrity in a database    what is the purpose of data integrity constraints in a database    what is data integrity and how is it maintained in a database