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Get count of how many times a string appears in a MySQL column?
Let us first create a table −
mysql> create table DemoTable704 (SubjectName text); Query OK, 0 rows affected (0.58 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable704 values('Introduction to MySQL');
Query OK, 1 row affected (0.15 sec)
mysql> insert into DemoTable704 values('Introduction to MongoDB');
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable704 values('Introduction to MySQL');
Query OK, 1 row affected (0.31 sec)
mysql> insert into DemoTable704 values('Introduction to Java');
Query OK, 1 row affected (0.39 sec)
mysql> insert into DemoTable704 values('Introduction to MongoDB');
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable704 values('Introduction to MySQL');
Query OK, 1 row affected (0.13 sec)
mysql> insert into DemoTable704 values('Introduction to C');
Query OK, 1 row affected (0.08 sec)
mysql> insert into DemoTable704 values('Introduction to Spring and Hibernate');
Query OK, 1 row affected (0.12 sec)Display all records from the table using select statement −
mysql> select *from DemoTable704;
This will produce the following output -
+--------------------------------------+ | SubjectName | +--------------------------------------+ | Introduction to MySQL | | Introduction to MongoDB | | Introduction to MySQL | | Introduction to Java | | Introduction to MongoDB | | Introduction to MySQL | | Introduction to C | | Introduction to Spring and Hibernate | +--------------------------------------+ 8 rows in set (0.00 sec)
Following is the query to get count of how many times string appears in column −
mysql> SELECT COUNT(*) from DemoTable704 WHERE SubjectName LIKE '%Introduction to MySQL%';
This will produce the following output -
+----------+ | COUNT(*) | +----------+ | 3 | +----------+ 1 row in set (0.00 sec)
Updated on: 21-Aug-2019
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