Does an update insert in MySQL?

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No, an update operation in MySQL does not insert new data into the database. The update operation is used to modify existing data within a table. It allows you to change the values of one or more columns in one or multiple rows of a table based on specified conditions.

The syntax for an update statement in MySQL is as follows:

```sql
UPDATE table_name
SET column1 = value1, column2 = value2, ...
WHERE condition;
```

In this statement, you specify the table name you want to update, followed by the columns you want to modify and their new values. The `WHERE` clause is optional but is typically used to specify the conditions that determine which rows should be updated. If you omit the `WHERE` clause, the update operation will modify all rows in the specified table.

To insert new data into a MySQL database, you would use the `INSERT INTO` statement, which is a separate operation from the update statement. The `INSERT INTO` statement allows you to add new rows to a table with the specified column values.