Free Access Oracle.1Z0-082.v2022-03-27.q110 Practice Test (Page 7)

Question 26

The INVOICE table has a QTY_SOLD column of data type NUMBER and an INVOICE_DATE column of data type DATE.
NLS_DATE_FORMAT is set to DD-MON-RR.
Which two are true about data type conversions involving these columns in query expressions? (Choose two.)

A.qty_sold = '0554982' uses implicit conversion

B.CONCAT (qty_sold, invoice_date) : requires explicit conversion

C.qty_sold BETWEEN '101' AND '110' : uses implicit conversion

D.invoice_date = '15-march-2019' : uses implicit conversion

E.invoie_date > '01-02-2019' : uses implicit conversion

Question 27

Which two tasks can you perform using DBCA for databases? (Choose two.)

A.Configure a nonstandard block size for a new database

B.Register a new database with an available Enterprise Manager Management server

C.Change the standard block size of an existing database

D.Configure incremental backups for a new database

E.Enable flashback database for an existing database

Question 28

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 the same row may be stored in the same block

E.Data block free space is always contiguous in the middle of the block

F.Index block free space is always contiguous in the middle of the block

Question 29

The SCOTT/TIGER user exists in two databases, BOSTON_DB and DALLAS_DB, in two different locations.
Each database has a tnsnames.ora file defining DALLAS_DB as a service name.
Examine this command:
CREATE DATABASE LINK dblink1 CONNECT TO scott IDENTIFIED BY tiger USING
`dallas_db';
How do you execute the command so that only SCOTT in BOSTON_DB can access the SCOTT schema in DALLAS_DB?

A.as SYS in both the databases

B.as SCOTT in BOSTON_DB

C.as SCOTT in BOSTON_DB and SYS in DALLAS_DB

D.as SCOTT in both the databases

E.as SCOTT in DALLAS_DB

Question 30

Which statement is true about the INTERSECT operator used in compound queries?

A.Multiple INTERSECT operators are not possible in the same SQL statement

B.It ignores NULLs

C.It processes NULLs in the selected columns

D.INTERSECT is of lower precedence than UNION or UNION ALL

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