A2090-614 Real Exam Questions

The following query is executed frequently against the SALES table: SELECT sales_id, sales_date, sales_person FROM sales; If data in the SALES_ID column is unique, which statement will create an index for optimal query performance and ensure uniqueness of the SALES_ID column?

Given the following database design: A Explain plan shows that a broadcast join is being used by a query that joins the DATE_DIM dimension table and the SALES fact table. Which action should be performed to improve query performance?

Which Range-Clustered Tables (RCT) statement is correct?

What is the preferred method for reclaiming unused storage in a DMS table space?

A storage group named MED_SG was created as follows: CREATE STOGROUP med_sg ON ?db2fs1? ?db2fs2? '/db2fs3' Then, a table space named TS1 was created in the storage group and two tables (TAB_A and TAB_B) were created in the TS1 table space. Four months later, a DBA discovered that 90% of the space that had been allocated to the MED_SG storage group had been consumed. So, more space was added to the storage group by executing the following command: ALTER STOGROUP med_sg ADD ?db2fs4? ALTER STOGROUP med_sg ADD ?db2fs4 Shortly afterwards, queries against tables in the TS1 table space began to run slower. Which statement should be executed to correct the performance problem?