多项选择题
A.CHECK
B.UNIQUE
C.NOT NULL
D.PRIMARY KEY
E.FOREIGN KEY
单项选择题 Observe the information in the columns: 1. The SGA a. Text and parsed forms of all SQL statements 2. The cursor state b. Run-time memory values for the SQL statement, such as rows retrieved 3. User-session data c. Security and resource usage information 4. The stack space d. Local variables for the process Which option has the correct match between the memory areas and their contents()
单项选择题 Identify the memory component from which memory may be allocated for:() 1. Session memory for the shared server 2. Buffers for I/O slaves 3. Oracle Database Recovery Manager (RMAN) backup and restore operations
单项选择题 Inyourdatabaseinstance,theusersessionsareconnectedtothedatabaseserverfromtheremotemachines.Youwanttoachievethefollowingfortheseusers: 1.Theuseraccountmustbelockedafterfourunsuccessfulloginattempts. 2.Theusermustbepromptedtochangethepasswordatregularintervals. 3.Theusermaynothavemorethanthreesimultaneoussessions. 4.Theusersessionmustautomaticallybeloggedoffifmorethan10minuteselapsedtimeused. Howwouldyouaccomplishtheabove()