Which of the following statement is false ?
A. Any procedure can raise a error and return an user message and error number
B. Error number is ranging from 20000 to 20999 are reserved for user defined messages
C. Oracle checks Uniqueness of User defined errors
D. Raise_Application_error is used for raising an user defined error
Answer:A
Which of the following statement is false ?
A. Any procedure can raise a error and return an user message and error number B. Error number is ranging from 20000 to 20999 are reserved for user defined messages C. Oracle checks Uniqueness of User defined errors D. Raise_Application_error is used for raising an user defined error
Explanation: The UNIQUE constraint uniquely identifies each record in a database table.The UNIQUE and PRIMARY KEY constraints both provide a guarantee for uniqueness for a column or set of columns.