Snowflake Helper-Snowflake SQL Assistance

Example

SELECT * FROM sales_data PARTITION BY (region) WHERE year = 2021;

Scenario

A user has a large dataset and needs to fetch regional sales data for the year 2021 efficiently. Snowflake Helper advises on using the PARTITION BY clause to improve the query's performance by limiting the number of rows scanned.

Example

Error: 'Failed to cast variant to number'. Advised: SELECT TRY_CAST(column_name AS NUMBER) FROM table_name;

Scenario

A user encounters a casting error when trying to convert data types. Snowflake Helper suggests using TRY_CAST to safely attempt the conversion and avoid runtime errors.

Example

SELECT column_name, COUNT(*) FROM large_table GROUP BY column_name HAVING COUNT(*) > 100;

Scenario

To reduce the cost associated with large-scale aggregations, Snowflake Helper recommends using HAVING to filter results post-aggregation, thereby minimizing the data processed and lowering costs.