问题：Which of the f...
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问题：When you try to&...
问题：说明触发器的种类和对应的作用对象、触发事件。...
问题：The EMPLOYEES table has these columns: LAST_NAME VARCHAR2(35) SALARY NUMBER(8,2) HIRE_DATE DATE Management wants to add a default value to the SALARY column. You plan to alter the table by using this SQL statement: ALTER TABLE EMPLOYEES MODIFY (SALARY DEF...
问题：Which two statements...
问题：You executed the&ensp...
问题：You want to check the EMP table in the user， Scott’s schema for block corruption. You also want to fix the corrupted blocks， if any. How will you accomplish the required task？（）A、by using the ANALYZE utilityB、by using the DBVERIFY utilityC、by using the DB...
问题：The EMPLOYEES table is stored in the USERS tablespace. You need to check if the EMPLOYEES table is affected by the block corruption found in the USERS tablespace. Which option would you use？（） A、the DBNEWID utilityB、the ANALYZE commandC、the RMAN LIST comm...
问题：Which three functions are perfor...
问题：he DBA is about to enable auditing on the Oracle database in an attempt to discover some suspicious activity. Audit trail information is stored in which of the following database object names?（）A、SYS.SOURCE$ B、SYS.AUD$ C、DBA_SOURCE D、DBA_AUDIT_TRAIL...
问题：In your database， online redo log files are multiplexed and one of the members in a group is lost due to media failure？ How would you recover the lost redo log member？（）A、 import the database from the last exportB、 restore all the members in the group fro...
问题：What are four capabilities of th...
问题：用于删除表中所有数据行的命令是（）。...
问题：94 What are th...
问题：Which NLS parameter can be used to change the default Oracle sort method from binary to linguistic for the SQL SELECT statement？（）A、 NLS_LANGB、 NLS_COMPC、 NLS_SORTD、 None of the above...
问题：Which two statements about subqueries are true?（）A、A single row subquery can retrieve data from only one table.B、A SQL query statement cannot display data from table B that is referred to in its subquery, unless table B is included in the main query's FRO...
问题：Which two are attributes of /SQL...
问题：Which clause would you use in a SELECT statement to limit the display to those employees whose salary is greater then 5000?（）A、ORDER BY SALARY 5000B、GROUP BY SALARY 5000C、HAVING SALARY 5000D、WHERE SALARY 5000...
问题：You need to give the MANAGER ro...
