单选题Evaluate the following SQL statements that are issued in the given order： What would be the status of the foreign key EMP_MGR_FK？（）AIt would be automatically enabled and deferred.BIt would be automatically enabled and immediate.CIt would remain disable

题目内容(请给出正确答案)

单选题

Evaluate the following SQL statements that are issued in the given order： What would be the status of the foreign key EMP_MGR_FK？（）

It would be automatically enabled and deferred.

It would be automatically enabled and immediate.

It would remain disabled and has to be enabled manually using the ALTER TABLE command.

It would remain disabled and can be enabled only by dropping the foreign key constraint and re-creating it.

如果没有搜索结果或未解决您的问题，请直接联系老师获取答案。

更多相关问题

第1题

多选题Examine the SQL statements that creates ORDERS table: CREATE TABLE orders (SER_NO NUMBER UNIQUE, ORDER_ID NUMBER, ORDER_DATE DATE NOT NULL STATUS VARCHARD2(10) CHECK (status IN ('CREDIT','CASH')), PROD_ID_NUMBER REFERENCES PRODUCTS(PRODUCT_ID), ORD_TOTAL NUMBER, PRIMARY KEY (order id, order date)); For which columns would an index be automatically created when you execute the aboveSQL statement? （）ASER_NOBORDER_IDCSTATUSDPROD_IDEORD_TOTALFComposite index on ORDER_ID and ORDER_DATE

点击查看答案
第2题

单选题You defined the Recovery Manager （RMAN） retention policy to recovery window of 7 days by executing the following command： RMAN> CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS； When a backup is performed， what would be the status of this backup after seven days？（）AThe backup would be marked as invalid.BThe backup would be marked as obsolete.CThe backup would be removed from the media.DThe backup would be removed from the RMAN repository.

点击查看答案
第3题

单选题Which type of PL/SQL construct would you use to automatically correct the error resulting from a statement that was suspended due to a space-related problem？（）AfunctionsBpackageCprocedureDdatabase triggerEanonymous PL/SQL block

点击查看答案
第4题

单选题A customer would like to share the processor resources automatically between logical partitions. Which of the following would accomplish this requirement without user interaction？（）ADynamic LPARsBOn/Off Capacity on DemandCUncapped Micro-PartitioningDEnterprise Workload Manager

点击查看答案
第5题

多选题Examine the SQL statement that creates ORDERS table: CREATE TABLE orders (SER_NO NUMBER UNIQUE, ORDER_ID NUMBER, ORDER_DATE DATE NOT NULL, STATUS VARCHAR2(10) CHECK (status IN ('CREDIT', 'CASH')), PROD_ID NUMBER REFERENCES PRODUCTS(PRODUCT_ID), ORD_TOTAL NUMBER, PRIMARY KEY (order_id, order_date)); For which columns would an index be automatically created when you execute the above SQL statement? （）ASER_NOBORDER_IDCSTATUSDPROD_IDEORD_TOTALFcomposite index on ORDER_ID and ORDER_DATE

点击查看答案
第6题

多选题Examine the SQL statements that creates ORDERS table: For which columns would an index be automatically created when you execute the above SQL statement? （）ASER_NOBORDER_IDCSTATUSDPROD_IDEORD_TOTALFComposite index on ORDER_ID and ORDER_DATE

点击查看答案
第7题

单选题Evaluate the following query: SQL> SELECT TRUNC(ROUND(156.00,-1),-1)FROM DUAL; What would be the outcome?（）A 16 B 100 C 160 D 200 E 150

点击查看答案

单选题Evaluate the following SQL statements that are issued in the given order： What would be the status of the foreign key EMP_MGR_FK？（）A It would be automatically enabled and deferred.B It would be automatically enabled and immediate.C It would remai

题目内容(请给出正确答案)

更多相关问题

第1题

第2题

第3题

第4题

第5题

第6题

第7题

相关内容