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单项选择题
A.Application B will read the row.
B.Applications A and B will cause a deadlock situation.
C.Application B will wait until application A releases the Update lock.
D.Application A will be terminated so that application B can read the row.
单项选择题
A.The database manager will rollback the transaction in both applications.
B.The database manager will rollback the transaction in one of the two applications.
C.Application B will successfully update the EMPLOYEE and DEPARTMENT tables; Application A will be placed in a lock wait state.
D.Application A will successfully update the EMPLOYEE and DEPARTMENT tables; Application B will terminate when the lock timeout value is reached.
单项选择题
A.An application process acquires at least a share lock on the current row of every cursor.
B.Any row that is read during a unit of work cannot be changed by other application processes until the unit of work is complete.
C.Any row changed by another application process can be read, even if the change has not been committed by that application process.
D.An application process that issues the same query more than once in a unit of work will not see additional rows caused by other application processes appending new information to the database.
单项选择题
A.The cursor is only protected from updates and deletes by concurrent applications.
B.The row is only protected from positioned updates and deletes that reference another cursor of the same application.
C.The cursor is protected from positioned updates and deletes that reference another cursor of a different application.
D.The row is protected from updates and deletes by the current application and from positioned updates and deletes that reference another cursor of the same application.
单项选择题
A.Row
B.Table
C.Column
D.Table space
单项选择题
A.Control Center
B.Development Center
C.Developer Workbench
D.Stored Procedure Builder
单项选择题
A.When the data is naturally tabular
B.When the number of nodes are volatile
C.When the data by nature has sparse attributes
D.When the data is of low volume and requires a complex star-schema topology
单项选择题
A.What is this customers address?
B.Does this customer have any unpaid bills?
C.What is the balance in this customers account?
D.What are the total sales for each of the last 6 months?
单项选择题
A.Journal
B.Task Center
C.Control Center
D.Activity Monitor
单项选择题
A.Flat earth
B.3-D Square
C.Trapezoidal
D.Round earth