23 Questions
Which aggregate function in the PostgreSQL-based Flow.BI repository calculates the average of a set of values?
MAX()
What does the ARRAY_AGG() function do within the PostgreSQL-based Flow.BI repository?
Returns an array containing all values in a set
Which PostgreSQL-based Flow.BI repository function returns a JSONB object containing all unique key-value pairs in a set?
JSON_OBJECT_AGG()
What is the purpose of the XMLELEM() function in the PostgreSQL-based Flow.BI repository?
Returns an XML element containing all values in a set
If you need to return a string containing all values in a set separated by a specified delimiter, which function should you use?
STRING_AGG()
Which aggregate function in PostgreSQL-based Flow.BI repository counts the number of values in a set?
COUNT()
What does JSONB_OBJECT_AGG() do within the PostgreSQL-based Flow.BI repository?
Returns a JSONB object containing unique key-value pairs in a set
Which function calculates the variance of a set of values within the PostgreSQL-based Flow.BI repository?
VAR()
What is the main purpose of the SUM() function within PostgreSQL-based Flow.BI repository?
Calculates the sum of a set of values
The SQL Expression field in the Metrics Tab is not directly editable.
False
The AVG() function in the PostgreSQL-based Flow.BI repository calculates the sum of a set of values.
False
COUNT() in the PostgreSQL-based Flow.BI repository returns the largest value in a set.
False
The MIN() function in the PostgreSQL-based Flow.BI repository returns the smallest value in a set.
True
STRING_AGG() function in the PostgreSQL-based Flow.BI repository returns a JSON object containing all values in a set.
False
JSON_OBJECT_AGG() function in the PostgreSQL-based Flow.BI repository returns a JSON object containing unique key-value pairs.
True
The STD() function calculates the standard deviation of a set of values in the PostgreSQL-based Flow.BI repository.
True
ARRAY_AGG() function in the PostgreSQL-based Flow.BI repository returns an XML element containing all values in a set.
False
VAR() function in PostgreSQL-based Flow.BI repository calculates the sum of a set of values.
False
MAX() function in the PostgreSQL-based Flow.BI repository returns the largest value in a set.
True
Match the PostgreSQL-based Flow.BI repository aggregate functions with their descriptions:
AVG() = Calculates the average of a set of values COUNT() = Counts the number of values in a set MAX() = Returns the largest value in a set MIN() = Returns the smallest value in a set
Match the PostgreSQL-based Flow.BI repository aggregate functions with their descriptions:
STD() = Calculates the standard deviation of a set of values SUM() = Calculates the sum of a set of values VAR() = Calculates the variance of a set of values ARRAY_AGG() = Returns an array containing all values in a set
Match the PostgreSQL-based Flow.BI repository aggregate functions with their descriptions:
JSON_AGG() = Returns a JSON object containing all values in a set JSONB_AGG() = Returns a JSONB object containing all values in a set JSON_OBJECT_AGG() = Returns a JSON object containing unique key-value pairs JSONB_OBJECT_AGG() = Returns a JSONB object containing unique key-value pairs
Match the PostgreSQL-based Flow.BI repository aggregate functions with their descriptions:
STRING_AGG() = Returns a string containing all values in a set, separated by a specified delimiter XMLELEM() = Returns an XML element containing all values in a set MAX() = Returns the largest value in a set COUNT() = Counts the number of values in a set
Learn about the Metrics Tab in the Semantic Layer, where all metrics within a dataset are displayed in a table format. Understand the editable fields such as Metric name, Label, and SQL expression. Explore the aggregate functions like AVG(), COUNT(), MAX(), and MIN() available in PostgreSQL-based Flow.BI repository.
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