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MySQL's DESCRIBE command?
The MySQL’s DESCRIBE or DESC both are equivalent. The DESC is the short form of DESCRIBE command and used to dipslay the information about a table like column names and constraints on column name.
The DESCRIBE command is equivalent to the following command −
SHOW columns from yourTableName command.
The following is the query that display information about a table with the help of DESCRIBE command. The query is as follows.
mysql> DESCRIBE Student;
Above, Student is the table name in my database.
The above query generates the following output.
+-------+--------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-------+--------------+------+-----+---------+-------+ | id | int(11) | YES | MUL | NULL | | | Name | varchar(100) | YES | MUL | NULL | | +-------+--------------+------+-----+---------+-------+ 2 rows in set (0.13 sec)
Here is the equivalent query that gives the same result. The query is as follows.
mysql> show columns from student;
The following is the output.
+-------+--------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-------+--------------+------+-----+---------+-------+ | id | int(11) | YES | MUL | NULL | | | Name | varchar(100) | YES | MUL | NULL | | +-------+--------------+------+-----+---------+-------+ 2 rows in set (0.03 sec)
As you see above, both of them gives the same output.
Updated on: 30-Jul-2019
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