Tag Archives: Oracle

Which three statements are true about time zones, date data types, and timestamp data types in an Oracle

Which three statements are true about time zones, date data types, and timestamp data types in an Oracle database? (Choose three.) A. The DBTIMEZONE function can return an offset from Universal Coordinated Time (UTC) B. The SESSIONTIMEZONE function can return an offset from Universal Coordinated Time (UTC) C. A TIMESTAMP data type column contains information about year, month,… Read More »

Which three statements are true about external tables in Oracle 18c and later releases? (Choose three.)

Which three statements are true about external tables in Oracle 18c and later releases? (Choose three.) A. They cannot be partitioned B. The ORACLE_DATAPUMP access driver can be used to unload data from a database into an external table C. The ORACLE_DATAPUMP access driver can be used to load data into a database from an external table D.… Read More »

Which three statements are true about external tables in Oracle 18c and later releases? (Choose three.)

Which three statements are true about external tables in Oracle 18c and later releases? (Choose three.) A. External table files can be used for other external tables in a different database B. The ORACLE_LOADER access driver can be used to unload data from a database into an external table C. The ORACLE_DATAPUMP access driver can be used to… Read More »

Which three statements are true about the Oracle join and ANSI join syntax? (Choose three.)

Which three statements are true about the Oracle join and ANSI join syntax? (Choose three.) A. The Oracle join syntax supports creation of a Cartesian product of two tables B. The Oracle join syntax performs better than the SQL:1999 compliant ANSI join syntax C. The SQL:1999 compliant ANSI join syntax supports natural joins D. The SQL:1999 compliant ANSI… Read More »

Which three are true about the Oracle Optimizer? (Choose three.)

Which three are true about the Oracle Optimizer? (Choose three.) A. It determines the optimal table join order and method. B. It generates execution plans for SQL statements based on relevant schema objects, system and session parameters, and information found in the Data Dictionary. C. It can re-optimize execution plans after previous executions detect suboptimal plans. D. It… Read More »

Which three statements are true about table data storage in an Oracle Database? (Choose three.)

Which three statements are true about table data storage in an Oracle Database? (Choose three.) A. Data block headers contain their own Data Block Address (DBA) B. A table row piece can be chained across several database blocks C. Multiple row pieces from the same row may be stored in different database blocks D. Multiple row pieces from… Read More »

In your data center, Oracle Managed Files (OMF) is used for all databases. All tablespaces are smallfile

In your data center, Oracle Managed Files (OMF) is used for all databases.All tablespaces are smallfile tablespaces.SALES_Q1 is a permanent user-defined tablespace in the SALES database.Examine this command which is about to be issued by a DBA logged in to the SALES database:ALTER TABLESPACE sales_q1 ADD DATAFILE;Which are two actions, either one of which you could take to… Read More »