COF-C02 Question #395: Real Exam Question with Answer & Explanation

The correct answer is C: select data:BIKE.BIKEID. In Snowflake, when accessing elements within a JSON object stored in a variant column, the correct syntax involves using a colon (:) to navigate the JSON structure. The BIKEID attribute, which is a child of the BIKE root node in the JSON object, is accessed using data:BIKE.BIKEID

Data Transformations

Question

A JSON object is loaded into a column named data using a Snowflake variant datatype. The root node of the object is BIKE. The child attribute for this root node is BIKEID. Which statement will allow the user to access BIKEID?

Options

Aselect data:BIKEID
Bselect data.BIKE.BIKEID
Cselect data:BIKE.BIKEID
Dselect data:BIKE:BIKEID

Explanation

In Snowflake, when accessing elements within a JSON object stored in a variant column, the correct syntax involves using a colon (:) to navigate the JSON structure. The BIKEID attribute, which is a child of the BIKE root node in the JSON object, is accessed using data:BIKE.BIKEID. This syntax correctly references the path through the JSON object, utilizing the colon for JSON field access and dot notation to traverse the hierarchy within the variant structure.

Topics

#JSON#VARIANT Data Type#Semi-structured Data#SQL Querying

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