Check if a column exists
Description
Check If Column Exists verifies whether a specific column exists in a database table and returns a Boolean result. Use this step when your workflow needs to adapt its behavior based on table structure — for example, checking that expected columns are present before running a data load, or conditionally adding transformation logic when an optional column is available. The result field can drive downstream branching with a Filter Rows step.
Configurations
| Field Name | Description |
|---|---|
| Step name | Specify the name of the step as it appears in the workflow workspace. This name has to be unique in a single workflow. |
| Connection | Specify the database connection to use. |
| Schema name (optional) | Specify the schema name of the table containing the column to check |
| Table name | Specify the name of the table containing the column to check |
| Tablename in field? | Enable to read the name of the table in an input field |
| Tablename field | Specify the fields containing parameters and the parameter type |
| Columnname field | Specify the name of the column field in the input stream. |
| Result fieldname | Specify the name of the result boolean flag field. |