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VCE
You are using an Azure Synapse Analytics serverless SQL pool to query a collection of Apache Parquet files by using automatic schema inference. The files contain more than 40 million rows of UTF-8-encoded business names, survey names, and participant counts. The database is configured to use the default collation.
The queries use open row set and infer the schema shown in the following table.
You need to recommend changes to the queries to reduce I/O reads and tempdb usage.
Solution: You recommend using openrowset with to explicitly specify the maximum length for businessName and surveyName.
Does this meet the goal?
A. Yes
B. No
The enterprise analytics team needs to resolve the DAX measure performance issues. What should the team do first?
A. Use Performance analyzer in Power BI Desktop to get the DAX durations.
B. Use DAX Studio to get detailed statistics on the server timings.
C. Use DAX Studio to review the Vertipaq Analyzer metrics.
D. Use Tabular Editor to create calculation groups.
You have a Power BI report named Report1. Report1 is connected to an imported dataset that contains a matrix. The matrix displays five measures.
When users view the report, they discover that the matrix is slow to render.
You need to review the execution times and durations in the formula engine and the storage engine for the DAX query executed by the matrix.
What should you use?
A. DAX Studio
B. SQL Server Profiler
C. Performance analyzer
D. Vertipaq Analyzer