多项选择题
A.Running a query on a table returns "ORA-600： Internal Error."
B.Inserting a value in a table returns "ORA-01722： invalid number."
C.Creating a table returns "ORA-00955： name is already used by an existing object."
D.Inserting a value in a table returns "ORA-00001： unique constraint （SYS.PK_TECHP） violated."
E.Inserting a row in a table returns "ORA-00060： deadlock detected while waiting for resource."
单项选择题 You want to check the details of few errors that users have reported. You search for the alert log fileand execute few commands to find the location of the alert log file. View the Exhibit and check the commands executed. What is the location of the alert_orcl.log file（）
多项选择题 You executed the following commands to find the location of the alert log file： Where is the alert log file stored（）
单项选择题 You used the IMMEDIATE option to shut down your database instance. Consider the steps that mayoccur when a database instance is started and database is opened： 1：SGA is allocated. 2：Control file is read. 3：Redo log files are opened. 4：Instance recovery is started. 5：Background processes are started. 6：Data file headers are checked for consistency. 7：Server parameter file or the initialization parameter file is read. Which option has the correct order in which these steps occur（）