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Placing comments in the middle of a create table statement? Is it possible?
Yes, it is possible using the # symbol. Let us first create a table −
mysql> create table DemoTable -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY , # Creating a sequence Number -> FirstName varchar(20), # Creating a column to store name -> Age int # creating a column to store an age -> ); Query OK, 0 rows affected (1.43 sec)
Above, we have set comments using the # symbol. Insert some records in the table using insert command. We will set comments in insert statement as well using the same # symbol −
mysql> insert into DemoTable(FirstName,Age) values('Chris',21);
Query OK, 1 row affected (0.54 sec)
mysql> insert into DemoTable(FirstName,Age) values('David',23); # Inserting to store Firstname and age.
Query OK, 1 row affected (0.42 sec)
mysql> insert into DemoTable(FirstName,Age) values('Bob',24); # Inserting to store Firstname and age.
Query OK, 1 row affected (0.30 sec)Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+----+-----------+------+ | Id | FirstName | Age | +----+-----------+------+ | 1 | Chris | 21 | | 2 | David | 23 | | 3 | Bob | 24 | +----+-----------+------+ 3 rows in set (0.00 sec)
Updated on: 17-Dec-2019
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