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MySQL Query to Count Rows with Specified Values
To get the count of rows in which two or more specified values appear, let us first create a sample table:
mysql> create table specifiedValuesDemo -> ( -> Value int, -> Value2 int, -> Value3 int -> ); Query OK, 0 rows affected (0.60 sec)
Following is the query to insert some records in the table using insert command:
mysql> insert into specifiedValuesDemo values(10,15,20); Query OK, 1 row affected (0.17 sec) mysql> insert into specifiedValuesDemo values(40,10,20); Query OK, 1 row affected (0.16 sec) mysql> insert into specifiedValuesDemo values(80,20,1000); Query OK, 1 row affected (0.12 sec)
Following is the query to display records from the table using select command:
mysql> select *from specifiedValuesDemo;
This will produce the following output
+-------+--------+--------+ | Value | Value2 | Value3 | +-------+--------+--------+ | 10 | 15 | 20 | | 40 | 10 | 20 | | 80 | 20 | 1000 | +-------+--------+--------+ 3 rows in set (0.00 sec)
Let us get the count of rows in which two or more specified values appear:
mysql> select count(*) from specifiedValuesDemo -> where 10 in(Value,Value2,Value3) and 20 in(Value,Value2,Value3);
This will produce the following output
+----------+ | count(*) | +----------+ | 2 | +----------+ 1 row in set (0.00 sec)
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