How to find the name of a column in MySQL?

For this, you can use SHOW COLUMNS or INFORMATION_SCHEMA.COLUMN.

Let us first create a table −

mysql> create table DemoTable603
   (
      ClientId int NOT NULL AUTO_INCREMENT,
      ClientName varchar(100),
      ClientAge int,
      ClientAddress varchar(100),
      ClientCountryName varchar(100),
      ClientEducationDetails varchar(200),
      PRIMARY KEY(ClientId)
   );
Query OK, 0 rows affected (0.59 sec)

CASE 1 − Using SHOW command

Here is the query to find the name of a column in MySQL −

mysql> SHOW COLUMNS FROM DemoTable603;

This will produce the following output −

+------------------------+--------------+------+-----+---------+----------------+
| Field                  | Type         | Null | Key | Default | Extra          |
+------------------------+--------------+------+-----+---------+----------------+
| ClientId               | int(11)      | NO   | PRI | NULL    | auto_increment |
| ClientName             | varchar(100) | YES  |     | NULL    |                |
| ClientAge              | int(11)      | YES  |     | NULL    |                |
| ClientAddress          | varchar(100) | YES  |     | NULL    |                |
| ClientCountryName      | varchar(100) | YES  |     | NULL    |                |
| ClientEducationDetails | varchar(200) | YES  |     | NULL    |                |
+------------------------+--------------+------+-----+---------+----------------+
6 rows in set (0.00 sec)

CASE 2 − Using information_schema.column −

mysql> select column_name from information_schema.columns where table_schema='web' and table_name='DemoTable603';

This will produce the following output −

+------------------------+
| COLUMN_NAME            |
+------------------------+
| ClientAddress          |
| ClientAge              |
| ClientCountryName      |
| ClientEducationDetails |
| ClientId               |
| ClientName             |
+------------------------+
6 rows in set (0.00 sec)

AmitDiwan

Published on 22-Aug-2019 12:48:51

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