The difference between in and on in mysql

The difference between MySQL IN and ON: IN is used to compare the value of a column with a list of values, ON is used to join two tables and compare columns with equality or inequality constraints.

The difference between IN and ON in MySQL

In MySQL, IN and ON are both keywords used to specify query conditions, but They have different uses and purposes.

IN

• Purpose: Used to compare the value of a column with a list of values.
• Syntax: column IN (value1, value2, ..., valueN)

Example:

<code class="sql">SELECT * FROM employees WHERE department IN ('Sales', 'Marketing', 'IT');</code>

This query returns all employee records whose department is "Sales", "Marketing" or "IT".

ON

• Usage: Used to join two tables when comparing with equality or inequality constraints.
• Syntax: table1.column = table2.column ON (condition)

##Example:

<code class="sql">SELECT * FROM orders AS o JOIN products AS p ON o.product_id = p.id;</code>

This query joins the "orders" and "products" tables and uses the "ON" clause on the "product_id" column for comparison.

Key differences

FeaturesINONPurposeCompare a column with a list of valuesJoin two tables and compare columnsPurposeFilter out records with one of the specific valuesCombining data from two tablesConnectionNot Join tableJoin table

Summary

• Use IN in When a column's value is compared to a list of values.
• Use ON when joining two tables and comparing columns with equality or inequality constraints.

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