Find all date and time columns in Snowflake

Date and time in Snowflake are represented by following data types: DATE, TIME, TIMESTAMP, TIMESTAMP_LTZ, TIMESTAMP_NTZ /DATETIME, TIMESTAMP_NTZ.

TIMESTAMP is alias to one of the other TIMESTAMPS_* and depends on TIMESTAMP_TYPE_MAPPING session parameter.

The query below lists all columns with date/time data types.

Query

select col.table_schema,
       col.table_name,
       col.ordinal_position as col_id,
       col.column_name,
       col.data_type
from information_schema.columns col
join information_schema.tables tab on tab.table_schema = col.table_schema
                                   and tab.table_name = col.table_name
                                   and tab.table_type = 'BASE TABLE'
where col.data_type in ('DATE', 'TIME', 'TIMESTAMP_LTZ',
                        'TIMESTAMP_NTZ', 'TIMESTAMP_TZ')
      and col.table_schema != 'INFORMATION_SCHEMA'
order by col.table_schema,
         col.table_name,
         col.ordinal_position;

Columns

  • table_schema - name of the schema
  • table_name - name of the table
  • column_id - column position in table
  • column_name - name of the column
  • data_type - type of data

Rows

  • One row represents one column with a date/time data type
  • Scope of rows: all columns containing date/time data types in the schema
  • Ordered by table schema name and table name

Sample results

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