Snowflake support

Supported schema elements and metadata

Current version imports:

• Tables, External tables
  • Columns
    • Data types
    • Nullability
    • Column comments
  • Table comments
• Views
  • Script
  • Columns
    • Data types
    • Column comments
  • View comments
• Procedures
  • Script
  • Parameters
• User-defined Functions
  • Script
  • Input arguments (all as a single field)
  • Output results (as a single field)
  • Function comments

Comments

Dataedo reads comments from following Snowflake objects:

• Tables
  • Columns
• Views
  • Columns
• Functions

Dataedo does not write comments back to Snowflake at this moment.

Data profiling

Datedo supports following data profiling in Snowflake:

• Tables
  • Rows count
• Column distribution
  • Distinct values
  • Non-distinct values
  • Empty
  • NULL
• Numeric columns profile
  • Minimum value
  • Maximum value
  • Average of values
  • Variance of values
  • Standard deviation
  • Span as difference between min and max value
  • Number of distinct values
• String columns profile
  • Min value as first string in alphabetical order
  • Max value as last string in alphabetical order
  • Number of distinct values
  • Minimum string length
  • Maximum string length
  • Average string length
  • Standard deviation of string length values
  • Variance of string length values
• Date columns profile
  • Min value as earliest date
  • Max value as latest date
  • Span as difference between min and max dates
  • Number of distinct dates
• Top N values
  • Top 10/100/1000 popular values
  • All values if less than 1000 distinct
  • 10 Random values

Read more about profiling in a Data Profliling documentation.

Snowflake database, role, warehouse name and credentials limitations

Due to Snowflake Connector for .NET limitations:

• Username and password
  • Cannot contain ; and = characters
• Database, role and warehouse name
  • Cannot contain ; and ‘ or \ characters

Under development

• Relations names and tables

Known limitations

• Snowflake’s INFORMATION_SCHEMA currently doesn’t contain data on object dependencies and Dataedo doesn't import it. We will add this to import once Snowflake adds it to the metadata.

Learn more

Connect to Snowflake