Introduction to Database System In SQL, which of the following is not a data Manipulation Language Commands? DELETE UPDATE CREATE SELECT DELETE UPDATE CREATE SELECT ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following contains a complete record of all activity that affected the contents of a database during a certain period of time? transaction log data manipulation language None of these report writer query language transaction log data manipulation language None of these report writer query language ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity cannot exist in the database unless another type of entity also exists in the database, but does not require that the identifier of that other entity be included as part of its own identifier? Weak entity Strong entity ID- independent entity ID-dependent entity Weak entity Strong entity ID- independent entity ID-dependent entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Keys made up of two or more attributes are called composite keys. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The DBMS acts as an interface between what two components of an enterprise-class database system? Data and the database The user and the database application Database application and the database Database application and SQL Data and the database The user and the database application Database application and the database Database application and SQL ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ means that one record in a particular record type can be related to many records in another record type and vice-versa. None of these Many-to-one relationship Many-to-many relationship One-to-one relationship One-to-many relationship None of these Many-to-one relationship Many-to-many relationship One-to-one relationship One-to-many relationship ANSWER DOWNLOAD EXAMIANS APP
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