多項(xiàng)選擇題

User Scott has updated the salary of one of the employees in the EMPLOYEES table and has not committed the transaction. What are the two types of locks that this scenario would lead to？（）

A.null lock on the row being updated
B.null lock on the table containing the row
C.ROW SHARE lock for the row being updated
D.ROW EXCLUSIVE lock for the row being updated
E.shared row-exclusive lock for the row being updated
F.a shareable table lock for the table containing the row
G.exclusive table-level lock for the table containing the row

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多項(xiàng)選擇題

When you try to start the Database Control by using the emctl start dbconsole command the following error is displayed： TZ set to America/New_york OC4J Configuration issue.
/u01/app/oracle/product/10.1.0/db_1/oc4j/j2ee/OC4J_DBConsole_orcl.us.oracle.com not found.
Which two environment variables do you need to set appropriately to avoid such errors，and start the Database Control successfully？（）

A.NLS_LANG
B.ORACLE_SID
C.ORACLE_HOME
D.ORACLE_BASE
E.LD_LIBRARY_PATH

單項(xiàng)選擇題

You need to rename a data file of a tablespace. How would you perform this？（）

A.A
B.B
C.C
D.D

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User Scott has updated the salary of one of the employees in the EMPLOYEES table and has not committed the transaction. What are the two types of locks that this scenario would lead to？（）

你可能感興趣的試題

You need to rename a data file of a tablespace. How would you perform this？（）

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User Scott has updated the salary of one of the employees in the EMPLOYEES table and has not committed the transaction. What are the two types of locks that this scenario would lead to？（）

You need to rename a data file of a tablespace. How would you perform this？（）