Introduction to Database System In SQL, which command is used to add a column/integrity constraint to a table ALTER TABLE INSERT COLUMN ADD COLUMN MODIFY TABLE ALTER TABLE INSERT COLUMN ADD COLUMN MODIFY TABLE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The relational model uses some unfamiliar terminology. A tuple is equivalent to a data item record data base field data item record data base field 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 ID-dependent entity Strong entity ID- independent entity Weak entity ID-dependent entity Strong entity ID- independent entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain? Characters Data field None of the listed here Bits Characters Data field None of the listed here Bits ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A functional dependency is a relationship between or among attributes. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, the CREATE TABLESPACE is used All of these to add/rename data files, to change storage None of these to create a place in the database for storage of scheme objects, rollback segments, and naming the data files to comprise the tablespace to create a database trigger All of these to add/rename data files, to change storage None of these to create a place in the database for storage of scheme objects, rollback segments, and naming the data files to comprise the tablespace to create a database trigger ANSWER DOWNLOAD EXAMIANS APP
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