Tuning Queries Using Indexers
Indexers are essential in databases, data warehouses, and analytical engines such as Spark environments as they contribute to faster data retrieval, improved query performance, optimized join operations, enhanced resource utilization, and streamlined data analysis. By utilizing indexers effectively, you can unlock the full potential of the Data Analytics workflows and derive actionable insights from the data more efficiently.
Note
This section primarily focuses on the Tune queries by using indexers concept of the DP-203: Data Engineering on Microsoft Azure exam.
In both Synapse SQL and Spark, there are various options for indexing and query tuning. To prepare for the DP-203 certification exam, it is important to know about the following indexing and query-tuning techniques:
- Indexers in Synapse SQL: Indexers in Synapse SQL provide a powerful mechanism for optimizing query performance by creating and managing indexes on tables. These indexes...