Syntax error How to escape parentheses in MySQL REGEXP clause and display only specific values with parentheses?

How to escape parentheses in MySQL REGEXP clause and display only specific values with parentheses?



Let us first create a table −

mysql> create table DemoTable1908
   (
   Code text
   );
Query OK, 0 rows affected (0.00 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable1908 values('MySQL(1)Database');
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1908 values('MongoDB 2 Database');
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1908 values('MySQL(3)Database');
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1908 values('SQL Server(10)Database');
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1908 values('MySQL 8 Database');
Query OK, 1 row affected (0.00 sec)

Display all records from the table using select statement −

mysql> select * from DemoTable1908;

This will produce the following output −

+------------------------+
| Code                   |
+------------------------+
| MySQL(1)Database       |
| MongoDB 2 Database     |
| MySQL(3)Database       |
| SQL Server(10)Database |
| MySQL 8 Database       |
+------------------------+
5 rows in set (0.00 sec)

Here is the query to escape parentheses in a REGEXP clause and display only the paratheses value with () −

mysql> select * from DemoTable1908 where Code regexp '^MySQL[(][0-9][)]Database';

This will produce the following output −

+------------------+
| Code             |
+------------------+
| MySQL(1)Database |
| MySQL(3)Database |
+------------------+
2 rows in set (0.00 sec)
Updated on: 2019-12-30T06:26:07+05:30

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