Snowflake SQL compilation error: Invalid data type

An invalid data type is specified in the SQL query.

Understanding Snowflake and Its Purpose

Snowflake is a cloud-based data warehousing solution that enables organizations to store, process, and analyze large volumes of data. It is designed to handle diverse data workloads, offering scalability, concurrency, and performance. Snowflake's architecture separates storage and compute, allowing for flexible resource management and cost efficiency.

Identifying the Symptom: SQL Compilation Error

When working with Snowflake, you might encounter the error code 001006 (42601), which indicates a SQL compilation error due to an invalid data type. This error typically occurs when the SQL query includes a data type that Snowflake does not recognize or support.

What You Observe

Upon executing a SQL query, you receive an error message similar to the following:

001006 (42601): SQL compilation error: Invalid data type

This message indicates that there is an issue with the data types specified in your query.

Exploring the Issue: Invalid Data Type

The error arises when a data type used in the SQL query is not valid or recognized by Snowflake. This could happen due to a typo, an unsupported data type, or incorrect syntax. Snowflake supports a wide range of data types, and using an unsupported type will lead to this compilation error.

Common Causes

Using a data type that is not supported by Snowflake.
Typographical errors in the data type declaration.
Incorrect syntax in the SQL query.

Steps to Fix the Issue

To resolve the SQL compilation error, follow these steps:

Step 1: Verify Data Types

Review the data types used in your SQL query. Ensure that each data type is supported by Snowflake. You can refer to the Snowflake Data Types Documentation for a comprehensive list of supported data types.

Step 2: Check for Typos

Examine your SQL query for any typographical errors in the data type declarations. Correct any misspelled data types to match the supported types listed in the documentation.

Step 3: Correct Syntax

Ensure that the syntax of your SQL query is correct. Pay attention to the placement of data type declarations and ensure they align with Snowflake's syntax requirements.

Step 4: Test the Query

After making the necessary corrections, execute the SQL query again to verify that the error is resolved. If the issue persists, double-check the data types and syntax.

Additional Resources

For more information on Snowflake data types and SQL syntax, visit the following resources:

By following these steps and utilizing the resources provided, you should be able to resolve the SQL compilation error related to invalid data types in Snowflake.

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