Examine Exhibit1 to view the query and its AUTOTRACE output. Which two statements are true about tracing? Exhibit: A. The displayed plan will be stored in PLAN_TABLE. B. Subsequent execution of this statement will use the displayed plan that is…
Which two types of column filtering may benefit from partition pruning? A. Equally operates on range-partitioned tables. B. In-list operators on system-partitioned tables C. Equality operators on system-partitioned tables D. Operators on range-partitioned tables E. Greater than operators on hash-partitioned…
View the exhibit and examine the query and its execution plan from the PLAN_TABLE. Which statement is true about the execution? Exhibit: A. The row with the ID column having the value 0 is the first step execution plan. B.…
Which three statements are true about histograms? A. They capture the distribution of different values in an index for better selectivity estimates. B. They can be used only with indexed columns. C. They provide metadata about distribution of and occurrences…
Examine the query and its execution plan: Which statement is true regarding the execution plan? A. This query first fetches rows from the CUSTOMERS table that satisfy the conditions, and then the join return NULL from the CUSTOMER_ID column when…