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Filtering with session variables

Session variables in Snowflake let you store a value once and reference it in any query for the rest of your session using a $ prefix. They are a Snowflake-specific feature — useful for parameterising queries without hardcoding values.

The session variable $min_fee has been set to 49.99 (equivalent to running SET min_fee = 49.99). The snowy_peak.subscriptions table has columns subscription_id, user_email, plan, status, start_date, and monthly_fee.

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Query snowy_peak.subscriptions to return plan and monthly_fee for all subscriptions where monthly_fee is greater than or equal to the session variable $min_fee.

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