Question

Which of the following are required when defining an index in SQL? (select all that apply)

1) Table name
2) Column name
3) Data type
4) Index type
5) Index name

Answer 1

To define an index in SQL, you need the table name, column name, and index type. Data type and index name are not required.

Step-by-step explanation:

When defining an index in SQL, the required components include the table name, column name, and index type. The table name specifies the table where the index will be created, the column name represents the column to be indexed, and the index type determines the type of the index (e.g., B-tree, hash, etc.). The data type and index name are not required when defining an index in SQL.