databases Online Quiz - 139
|Description: databases Online Quiz - 139|
|Number of Questions: 20|
|Created by: Aliensbrain Bot|
The database is running in NOARCHIVELOG mode. A data file is lost. Which two are valid options for recover ? (Choose two)
What file will give you Oracle instance status information?
Which three attributes of the LOG_ARCHIVE_DEST_n initialization parameter control the data availability mode of a Data Guard standby database? (Choose three)
To increase the availability of an Advanced Replication environment, you can add a new master to a replication group without quiescing the group. This is achived _________________.
Consider this syntax MERGE INTO t1 USING t2 ON (join predicate) .... What does the MERGE syntax do ?
Which modifier is used to change listener parameters in the Listener Control utility environment?
Which background process reads the redo log buffer and writes it to a file ?
You have used the CROSSCHECK BACKUP command to verify that the backups recorded in the RMAN repository actually exist. Which command should you now use to check if any of the files were missing?
You want to drop the TBSI tablespace from your database. You also want to delete corresponding data files automatically, and not have to do it manually. What should you do ?
You need to enforce these two business rules: 1. No two rows of a table can have duplicate values in the specified column. 2. A column cannot contain null values. Which type of constraint ensure that both of the above rules are true ?
The ORDERS table has a constant transaction load 24 hours a day, so down time is not allowed. The index become fragmented. Whic statment is true ?
You omit the UNDO tablespace clause in your CREATE DATABASE statment. The UNDO_MANAGEMENT parameter is set to AUTO. What is the result of your CREATE DATABASE statement ?
John has created a procedure named SALARY_CALC. Which SQL query allow him to view text of procedure?
The employees table is stored in the SAMPLE tablespace. The corresponding IPK_EMP index for the EMPLOYEES table's primary key is stored in INDX tablespace. Out of 12 partitions, only partition P1 of the SALES table is stored in the SAMPLE tablespace. Which object will be exported by this command ? exp system/manager tablespace=SAMPLE
In user-managed backup and recover procedure, how are data files backed up ?