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Here, index_name is the name of the index you want to create, table_name is the name of the table on which you want to create the index, and (column1, column2, …) specifies the column or columns on which you want to create the index. For example, to create an index on the customer_name column in the customers table, you can use the following SQL statement: This will create an index called idx_customer_name on the customer_name column in the customers table. It’s important to note that creating indexes can improve query performance, but it can also have negative effects on write