How does the IN() comparison function work in MySQL?

Basically, the IN() comparison function checks whether a value is within a set of values. Returns 1 if the value is within a set of values, 0 otherwise. The syntax is as follows;

Expression IN (val1, val2,…,valN)

Here, the

• expression is the value to be searched in the set of N values ​​in the IN list. li>
• Val1, val2,…, valN is a set of N values ​​forming an IN list from which to search.

Example

mysql> Select 100 IN (50,100,200,400,2000);
+------------------------------+
| 100 IN (50,100,200,400,2000) |
+------------------------------+
|                            1 |
+------------------------------+
1 row in set (0.00 sec)

mysql> Select 1000 IN (50,100,200,400,2000);
+-------------------------------+
| 1000 IN (50,100,200,400,2000) |
+-------------------------------+
|                             0 |
+-------------------------------+
1 row in set (0.00 sec)

mysql> Select 'ABC' IN ('ABCD','ABCDE','ABC');
+---------------------------------+
| 'ABC' IN ('ABCD','ABCDE','ABC') |
+---------------------------------+
|                               1 |
+---------------------------------+
1 row in set (0.01 sec)

mysql> Select 'ABC' IN ('ABCD','ABCDE','ABCDEF');
+------------------------------------+
| 'ABC' IN ('ABCD','ABCDE','ABCDEF') |
+------------------------------------+
|                                  0 |
+------------------------------------+
1 row in set (0.00 sec)

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