Introduction to Database System Which command(s) is(are) used to enable/disable/drop an integrity constraint in SQL? ALTER TABLE All of the listed here DEFINE TABLE MODIFY TABLE ALTER TABLE All of the listed here DEFINE TABLE MODIFY TABLE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The modify operation is likely to be done after Delete All of these Look-up Insert None of these Delete All of these Look-up Insert None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The relational database model was created by E.F. Codd. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A network schema restricts the structure to a one-to-many relationship stores data in tables permits many-to-many relation¬ships All of the listed here restricts the structure to a one-to-many relationship stores data in tables permits many-to-many relation¬ships All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The term _____ is sometimes used to refer to a data file in which all the records have the same record format, that is, the same field names, field lengths, and data types. Flat file None of these Database Data structure Table Flat file None of these Database Data structure Table ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The logical data structure with a one-to-many relationship is a network tree relational chain network tree relational chain ANSWER DOWNLOAD EXAMIANS APP
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