SET TAG
Applies to: 
Databricks SQL Databricks Runtime 16.1 and above
Sets a tag on a catalog, schema, table, view, volume, or column.
To add tags to Unity Catalog securable objects, you must own the object or have all of the following privileges:
APPLY TAGon the objectUSE SCHEMAon the object's parent schemaUSE CATALOGon the object's parent catalog
If the tag is governed you also need ASSIGN permission on the governed tag
Syntax
SET TAG ON
{ CATALOG catalog_name |
COLUMN relation_name . column_name |
{ SCHEMA | DATABASE } schema_name |
TABLE relation_name |
VIEW relation_name |
VOLUME volume_name }
tag_key [ = tag_value ]
Parameters
-
CATALOG catalog_name
The name of the catalog to tag.
-
COLUMN relation_name . column_name
The qualified name of the column to tag.
relation_namemust identify a view or a table. Therelation_namemust not include a temporal specification or options specification. -
SCHEMA schema_name
The name of the schema to tag.
-
TABLE relation_name
The name of the table or view to tag. The name must not include a temporal specification or options specification.
-
VIEW relation_name
The name of the view to tag.
-
VOLUME volume_name
The name of the volume to tag.
-
tag_key
An identifier. If a tag assignment with the same key already exists and exception is raised.
-
tag_value
An optional identifier. If not specified, the tag assignment will be set as key-only.
Examples
> SET TAG ON CATALOG catalog `cost_center` = `hr`;
> UNSET TAG ON CATALOG catalog cost_center;
> SET TAG ON TABLE catalog.schema.table cost_center = hr;
> UNSET TAG ON TABLE catalog.schema.table cost_center;
> SET TAG ON COLUMN table.ssn pii;
> UNSET TAG ON COLUMN table.ssn pii;
> SELECT table_name, column_name FROM information_schema.column_tags
WHERE tag_name = 'pii' AND schema_name = 'default';
table_name column_name
---------- -----------
table ssn