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单选题
A user performs an update on a table. Shortly after committing the transaction， they realize that they had an error in their WHERE clause causing the wrong rows to be updated. Which Flashback option would allow you to undo this transaction and restore the table to its previous state？（）
A
Flashback Drop
B
Flashback Query
C
Flashback Versions Query
D
Flashback Transaction Query
E
Flashback Table
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单选题The SCOTT user has an index on the ITEM_DESC column of the ITEM table. As part of the year-ending task， SCOTT updates the ITEM_DESC column for most of the rows in the ITEM table. How does this change to the table affect the index？（）A
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单选题Examine the following steps performed on a database instance： 1：The DBA grants the CREATE TABLE system privilege to the SKD user with ADMIN OPTION. 2：The SKD usercreates a table. 3：The SKD user grants theCREATETABLE system privilege to the HR user. 4：The HR user creates a table. 5：The DBA revokes the CREATE TABLE system privilege from SKD. Which statement is true after step 5 is performed（）A
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考题
单选题“把查询sc表和更新sc表的grade列的权限受予用户user1”的正确SQL语句是（）。A
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单选题View the Exhibit and examine the parameters. User A executes the following command to update the TRANS table： SQL UPDATE B.trans SET tr_amt=tr_amt+500 WHERE c_code=’C005’； Before user A issues a COMMIT or ROLLBACK command， user B executes the following command onthe TRANS table： SQL ALTER TABLE trans MODIFY （tr_type VARCHAR2（3））； What would happen in this scenario（）A
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单选题All the database users are presently connected to the database instance and working. The HR userhas opened three database sessions and executed the following command in one of his sessions： SQL UPDATE persons SET ccode=’U031’ WHERE ccode=’U029’； 123 rows updated. SQL DELETE FROM persons WHERE exp=’Y’； 3 rows deleted. The SYS user opens a new session after HR executed the above commands. Which sessions can seethe effect of the UPDATE and DELETE commands （）A
all sessions of the HR user onlyB
all sessions of the HR user and the SYS userC
the session of the HR user that executed the commandsD
all the sessions for which the database users have access privilege to the PERSONS table
考题
单选题The following triggers were defined for table TAB1 in the order shown:CREATE TRIGGER trig_a AFTER UPDATE ON tab1 FOR EACH ROW UPDATE sale_tab SET sale_date = CURRENT DATE; CREATE TRIGGER trig_b AFTER UPDATE ON tab1 FOR EACH STATEMENT UPDATE invoice_tab SET invoice_date = CURRENT DATE; CREATE TRIGGER trig_c AFTER UPDATE ON tab1 FOR EACH ROW UPDATE shipping_tab SET ship_date = CURRENT DATE; CREATE TRIGGER trig_d AFTER UPDATE ON tab1 FOR EACH STATEMENT UPDATE billing_tab SETbilling_date = CURRENT DATE;If an event occurs that causes all of them to activate, which trigger will be activated first?（）A
TRIG_AB
TRIG_BC
TRIG_CD
TRIG_D
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多选题The session of user SCOTT receives the following error after executing an UPDATE command onthe EMP table： ERROR at line 1： ORA-00060： deadlock detected while waiting for resource On investigation， you find that a session opened by user JIM has a transaction that caused the deadlock. two statements are true regarding the session of SCOTT in this scenario（）AThe session is terminated after receiving the error and JIM can continue with his transaction.BSCOTT should perform a COMMIT or ROLLBACK to allow JIM to continue with his transaction.CThe session is rolled back after receiving the error and JIM can continue with his transaction.DSCOTT has to reexecute the last command in the transaction after he commits the transaction.
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多选题You have been tasked with performing an update to the IDP attack database. Which three requirements areincluded as part of this task？（）AThe IDP security package must be installed after it is downloaded.BThe device must be rebooted to complete the update.CThe device must be connected to a network.DAn IDP license must be installed on your device.EYou must be logged in as the root user
考题
单选题The user HR owns the EMP table. The user HR grants privileges to the user SCOTT by using this command： SQL GRANT SELECT，INSERT，UPDATE ON emp TO scott WITH GRANT OPTION； The user SCOTT executes this command to grant privileges to the user JIM： SQL GRANT SELECT，INSERT，UPDATE ON hr.emp TO jim； Now， the user HR decides to revoke privileges from JIM using this command： SQL REVOKE SELECT，INSERT，UPDATE ON emp FROM jim； Which statement is true after HR issues the REVOKE command（）A
The command fails because SCOTT still has privileges.B
The command succeeds and privileges are revoked from JIM.C
The command fails because HR cannot revoke the privileges from JIM.D
The command succeeds and only HR has the privilege to perform the SELECT， INSERT， and UPDATEoperations on the EMP table.
考题
单选题You are the DBA for an academic database. You need to create a role that allows a group of users to modify existing rows in the STUDENT_GRADES table. Which set of statements accomplishes this? （）A
CREATE ROLL registrar; GRANT MODIFY ON student_grant TO registrar; GRANT registrar to user 1, user2, user3B
CREATE NEW ROLE registrar; GRANT ALL ON student_grant TO registrar; GRANT registrar to user 1, user2, user3C
CREATE ROLL registrar; GRANT UPDATE ON student_grant TO registrar; GRANT ROLE to user1, user2, user3D
CREATE ROLL registrar; GRANT UPDATE ON student_grant TO registrar; GRANT registrar to user 1, user2, user3;E
CREATE registrar; GRANT CHANGE ON student_grant TO registrar; GRANT registrar;
考题
单选题All the database users are presently connected to the database instance and working. The HR user hasopened three database sessions and executed the following command in one of his sessions：SQL UPDATE persons SET ccode=’U031’ WHERE ccode=’U029’； 123 rows updated.SQL DELETE FROM persons WHERE exp=’Y’；3 rows deleted. The SYS user opens a new session after HR executed the above commands. Which sessions can see theeffect of the UPDATE and DELETE commands（）A
All sessions of the HR user onlyB
All sessions of the HR user and the SYS userC
The session of the HR user that executed the commandsD
All the sessions for which the database users have access privilege to the PERSONS table
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