YouworkasadatabaseadministratorforSupportcenter.
Whichtwoactionswouldyoutaketogainperformance?()
Whichtwoactionswouldyoutaketogainperformance?()
A. It detects changes in SQL execution plans.
B. It produces results that can be used to create the SQL plan baseline.
C. The importance of SQL statements is based on the size of the objects accessed.
D. It generates recommendations to run SQL Tuning Advisor to tune regressed SQLs.
E. It shows only the overall impact on workload and not the net SQL impact on workload.
A. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING
B. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE C. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE D. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING
A. WHERE lower(country_address) = "france"
B. WHERE lower(country_address) = ‘france‘
C. WHERE lower(country_address) IS ‘france‘
D. WHERE lower(country_address) = ‘%france%‘
E. WHERE lower(country_address) LIKE %france%
A. go in Goban go in Goban
B. go in Sente go in Goban
C. go in Goban go in Sente
D. go in Sente go in Sente
E. Compilation fails because of an error in line 17.
A.210
B.211
C.321
D.322
E.Compilation fails.
F.An exception is thrown at runtime.
A. SELECT COUNT (*) FROM employees WHERE last _name=‘smith‘;
B. SELECT COUNT (dept_id) FROM employees WHERE last _name=‘smith‘;
C. SELECT DISTINCT (COUNT (dept_id) FROM employees WHERE last _name=‘smith‘;
D. SELECT COUNT (DISTINCT dept_id) FROM employees WHERE last _name=‘smith‘;
E. SELECT UNIQE (dept_id) FROM employees WHERE last _name=‘smith‘;
A.1
B.2
C.12
D.Compilation fails.
E.No output is produced.
F.An exception is thrown at runtime.
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