SHOW COLUMNS

Warning

SingleStore 9.0 gives you the opportunity to preview, evaluate, and provide feedback on new and upcoming features prior to their general availability. In the interim, SingleStore 8.9 is recommended for production workloads, which can later be upgraded to SingleStore 9.0.

Syntax

SHOW [FULL] COLUMNS {FROM | IN} tbl_name [{FROM | IN} db_name] [LIKE 'pattern' | WHERE expr]

Remarks

LIKE 'pattern' can be used to filter the list by name. SQL LIKE clause.
This command must be run on the Master Aggregator or a child aggregator node (see Node Requirements for SingleStore Commands).
See the Permission Matrix for the required permission.

Output

Column	Description
`Field`	Field name
`Type`	Data types
`Null`	Whether this column allows nulls
`Key`	An attribute or attributes that uniquely identify table rows. There are several types of keys with the most common being primary, unique, and foreign.
`Default`	Default value, if applicable
`Extra`	Additional information

Example

SQL

SHOW COLUMNS IN mytbl;
+----------+------------+------+-----+---------+-------+
| Field    | Type       | Null | Key | Default | Extra |
+----------+------------+------+-----+---------+-------+
| seq      | int(11)    | YES  | MUL | NULL    |       |
| state    | int(11)    | YES  |     | NULL    |       |
| st_case  | varchar(8) | YES  |     | NULL    |       |
| veh_no   | varchar(2) | YES  |     | NULL    |       |
| drimpair | varchar(2) | YES  |     | NULL    |       |
+----------+------------+------+-----+---------+-------+
5 rows in set (0.00 sec)