单项选择题
A. identify the segments that you should shrink
B. modify the storage parameters for the tablespace
C. automatically shrink the segments with unused space
D. check the alerts generated for the tablespace that is running low on space
单项选择题 The Automatic Database Diagnostic Monitor （ADDM） analysis runs every 60 minutes on your database. Your database is facing a series of interrelated problems over a period of two hours. You need to ensure that the ADDM analysis is run over a time span of two hours in future. What would you do？（）
多项选择题 The EMP table exists in your schema. You want to execute the following query： SELECT ename， sal FROM emp AS OF TIMESTAMP （SYSTIMESTAMP - INTERVAL ’6’ MINUTE） WHERE ename = ’ALLEN’； What are the minimum requirements for the statement to execute successfully？（）
单项选择题 You have three temporary tablespace groups named G1， G2， and G3 in your database. You are creating a new temporary tablespace as follows： CREATE TEMPORARY TABLESPACE TEMP1 TEMPFILE ’/u1/data/temp1.dbf’ SIZE 10M TABLESPACE GROUP ； Which statement regarding the above command is correct？（）