qlty_missingValues
Read-onlyIdempotent
Analyze a table to list columns with NULL or missing values, providing a column-level summary of missing data.
Instructions
List the column names that contain NULL or missing values in a table. Returns a column-level summary showing WHICH columns have missing data. Use when the user asks which columns have nulls, which fields have missing data, or how many nulls exist per column. Do NOT use to retrieve the actual data rows — use qlty_rowsWithMissingValues to get the specific records where a column is null.
Arguments: database_name - Name of the database (optional) table_name - Table name to analyze persist - If True, materializes result as a volatile table and returns table name
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| persist | No | If True, materializes result as a volatile table and returns table name | |
| table_name | Yes | Table name to analyze | |
| database_name | No | Name of the database (optional) |