Find all numeric columns in MySQL database

Numeric in MySQL are columns with the following data types: tinyint, smallint, mediumint, int, bigint, decimal, bit, float, double. The query below lists all columns with numeric data types.

Query

select col.table_schema as database_name,
       col.table_name,
       col.ordinal_position as col_id,
       col.column_name,
       col.data_type,
       col.numeric_precision,
       col.numeric_scale
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 ('tinyint', 'smallint', 'mediumint', 
                        'int', 'bigint', 'decimal', 'bit',
                        'float', 'double')
      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
  • numeric_precision - precision of the column
  • numeric_scale - scale of column

Rows

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

Sample results

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