Introduction to Database System In a relation, the columns are sometimes called "attributes". False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System For some relations, changing the data can have undesirable consequences called: modification anomalies. referential integrity constraints. transitive dependencies. normal forms. modification anomalies. referential integrity constraints. transitive dependencies. normal forms. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The logical data structure with a one-to-many relationship is a tree chain relational network tree chain relational network ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to make permanent changes made by statements issue since the beginning of a transaction? ZIP PACK SAVE COMMIT ZIP PACK SAVE COMMIT ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a large DBMS all of the listed here each user can "see" only a small part of the entire database each user can access every sub¬schema each subschema contains every field in the logical schema all of the listed here each user can "see" only a small part of the entire database each user can access every sub¬schema each subschema contains every field in the logical schema ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A key: identifies a column. must always be composed of two or more columns. identifies a row. can only be one column. identifies a column. must always be composed of two or more columns. identifies a row. can only be one column. ANSWER DOWNLOAD EXAMIANS APP
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