You execute the following set of commands to create a database user and to grant the system privileges in your production environment. SQL> CREATE USER user01 IDENTIFIED BY oracle DEFAULT TABLESPACE tbs1 TEMPORARY TABLESPACE temp PROFILE default / SQL> GRANT create session， create table TO user01； While executing the command to create a table， the user gets the following error message and the CREATE TABLE.. command fails. ERROR at line 1： ORA-01950： no privileges on tablespace What could be the possible reason for this error message？（） The tablespace TBS1 is full.。 The user is not the owner of the SYSTEM tablespace.。 The user does not have quota on the TBS1 tablespace.。 The user does not have sufficient system privileges to create table in the TBS1 tablespace.。 The user does not have sufficient privileges to create table on the default permanent tablespace.。
“x 是小于10的非负数”的Object Pascal表达式是（） 0 ≤ x < 10。 （x >=0）AND（x < 10）。 x >= 0， x<10。 （x >= 0 ）OR（x<10）。
View the Exhibit to examine the output for the CROSSCHECK BACKUP command. Which statement is true about the output of the command（） The backup piece is expired as the new backup is available.。 The backup piece is expired because the operating-system file was not found.。 The backup piece is expired because the retention period for the backup has expired.。 The backup piece is expired because the backup set to which it belongs is not complete.。
A database is stored in an Automatic Storage Management (ASM) disk group, disk group, DGROUP1 with SQL: There is enough free space in the disk group for mirroring to be done. What happens if the CONTROLLER1 failure group becomes unavailable due to error of for maintenance?（） Transactions and queries accessing database objects contained in any tablespace stored in DGROUP1 will fall.。 Mirroring of allocation units will be done to ASM disks in the CONTROLLER2 failure group until the CONTROLLER1 for failure group is brought back online.。 The data in the CONTROLLER1 failure group is copied to the controller2 failure group and rebalancing is initiated.。 ASM does not mirror any data until the controller failure group is brought back online, and newly allocated primary allocation units (AU) are stored in the controller2 failure group, without mirroring.。 Transactions accessing database objects contained in any tablespace stored in DGROUP1 will fail but queries will succeed.。
打油时泵憋压在（） 0.5MPa左右。 0.1MPa左右。 0.2MPa左右。
基站内部应至少提供（）二孔、一个三孔的电源插座，插座前端有漏电保护设施。
