Find all date and time columns in MariaDB database

Date and time in MariaDB are represented by following data types: date, time, datetime, year, timestamp. The query below lists all columns with date/time data types.

Query

select col.table_schema as database_name,
       col.table_name,
       col.ordinal_position as column_id,
       col.column_name,
       col.data_type,
       col.datetime_precision
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', 'datetime', 'year', 'timestamp')
      and col.table_schema not in ('information_schema', 'sys',
                                   'performance_schema', 'mysql')
     --and col.table_schema = 'database_name' -- put your database name here
order by col.table_schema,
         col.table_name,
         col.ordinal_position;

Columns

  • database_name - name of the database (schema)
  • table_name - name of the table
  • column_id - column position in table
  • column_name - name of the column
  • data_type - type of data
  • datetime_precision - the fractional seconds precision

Rows

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

Sample results

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