| Exam Name: | Databricks Certified Data Engineer Associate Exam | ||
| Exam Code: | Databricks-Certified-Data-Engineer-Associate Dumps | ||
| Vendor: | Databricks | Certification: | Databricks Certification |
| Questions: | 176 Q&A's | Shared By: | hasan |
A data engineer needs to apply custom logic to string column city in table stores for a specific use case. In order to apply this custom logic at scale, the data engineer wants to create a SQL user-defined function (UDF).
Which of the following code blocks creates this SQL UDF?
A data engineer needs to optimize the data layout and query performance for an e-commerce transactions Delta table. The table is partitioned by " purchase_date " a date column which helps with time-based queries but does not optimize searches on user statistics " customer_id " , a high-cardinality column.
The table is usually queried with filters on " customer_i
d " within specific date ranges, but since this data is spread across multiple files in each partition, it results in full partition scans and increased runtime and costs.
How should the data engineer optimize the Data Layout for efficient reads?
A new data engineering team team. has been assigned to an ELT project. The new data engineering team will need full privileges on the database customers to fully manage the project.
Which of the following commands can be used to grant full permissions on the database to the new data engineering team?