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MySQL RegEx to find lines containing N semi-colons?
Let us first create a table −
mysql> create table DemoTable ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY , Title text ); Query OK, 0 rows affected (0.88 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable(Title) values('This is; a; MySQL;Tutorial');
Query OK, 1 row affected (0.15 sec)
mysql> insert into DemoTable(Title) values('Java is; an;Object Oriented');
Query OK, 1 row affected (0.16 sec)
mysql> insert into DemoTable(Title) values('MongoDB ; is;a; database');
Query OK, 1 row affected (0.12 sec)Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+----+-----------------------------+ | Id | Title | +----+-----------------------------+ | 1 | This is; a; MySQL;Tutorial | | 2 | Java is; an;Object Oriented | | 3 | MongoDB ; is;a; database | +----+-----------------------------+ 3 rows in set (0.00 sec)
Here is the regex to find lines containing 3 semi-colons −
mysql> select *from DemoTable where Title REGEXP '(.*;){3}';This will produce the following output −
+----+----------------------------+ | Id | Title | +----+----------------------------+ | 1 | This is; a; MySQL;Tutorial | | 3 | MongoDB ; is;a; database | +----+----------------------------+ 2 rows in set (0.00 sec)
Updated on: 09-Oct-2019
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