Query below returns a list of all columns in a specific table in MySQL.
Query
select ordinal_position as column_id,
column_name as column_name,
data_type as data_type,
case when numeric_precision is not null
then numeric_precision
else character_maximum_length end as max_length,
case when datetime_precision is not null
then datetime_precision
when numeric_scale is not null
then numeric_scale
else 0 end as data_precision,
is_nullable,
column_default
from information_schema.columns
where table_name = 'table name' -- put table name here
-- and table_schema = 'schema name' -- put schema name here
order by ordinal_position;
Columns
- column_id - column position in table, starting at 1
- column_name - name of a column in a table
- data_type - column data type
- max_length - data type max length
- data_precision - data type precision
- is_nullable - if column is nullable then YES, else NO
- column_default - Default expression of the column
Rows
- One row represents a single column
- Scope of rows: represent all columns in a specific table
- Ordered by column's ordinal position
Sample results
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