Business users are regularly joining a common set of columns from parquet external data to existing dimension tables. An Administrator needs to improve the performance of these queries where they filter on common columns.Which strategy can be used to improve performance?
Which portlets contain detailed information about QueryGrid requests?
Which QueryGrid connector can only be a target?
A Vantage instance includes the following four databases:Tables Database contains base tables and associated index subtablesUpsert_Database: contains views and other objects to support base table modificationsQuery Database: contains views and other objects supporting queries and reportingDevelopment_Database: contains objects supporting development of new data applicationsThe Administrator needs to add a new user that will perform batch-level functions.Which action should the Administrator take to achieve this goal?
After a recent migration, a request has started to take significant time to complete. Upon a detailed investigation of the EXPLAIN plan, it is found that an accidental unconstrained product join on a very uniformly-distributed large table was the prime reason for the issue. The Administrator needs to use workload management to detect when this request is running.Which criteria should the Administrator select for this issue?
Partition elimination enhances query performance by skipping row partitions that do not contain rows that meet the search conditions of a query. Without collected statistics for some partitioning expressions, the Optimizer assumes a total of 65,535 partitions. This could easily be far more than the number of populated partitions and would adversely affect performance.Which form of partitioning will cause the Optimizer to make this assumption?
