Introduction to Database System Which command is used to remove a table from the database in SQL? ERASE TABLE DROP TABLE DELETE TABLE UNATTACH TABLE ERASE TABLE DROP TABLE DELETE TABLE UNATTACH TABLE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Given the functional dependency R → S , R is called the determinant. False True False True 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? ID- independent entity Weak entity Strong entity ID-dependent entity ID- independent entity Weak entity Strong entity ID-dependent entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation is considered a: three-dimensional table. one-dimensional table. two-dimensional table. Column. three-dimensional table. one-dimensional table. two-dimensional table. Column. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to add a column/integrity constraint to a table INSERT COLUMN ALTER TABLE ADD COLUMN MODIFY TABLE INSERT COLUMN ALTER TABLE ADD COLUMN MODIFY TABLE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A data dictionary is a special file that contains None of these the widths of all fields in all files the names of all fields in all files All of these the data types of all fields in all files None of these the widths of all fields in all files the names of all fields in all files All of these the data types of all fields in all files ANSWER DOWNLOAD EXAMIANS APP
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