What is cursor stored procedure and function different type of joins and complex queries

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Cursor stored procedure is used to iterate through a result set. Different types of joins include inner, outer, left, right, and cross. Complex queries involve multiple tables and conditions.

Cursor stored procedure is used to fetch and process each row of a result set one at a time
Inner join returns only the matching rows from both tables
Outer join returns all the rows from one table and matching rows from the other table
Left join returns all the rows from the left table and matching rows from the right table
Right join returns all the rows from the right table and matching rows from the left table
Cross join returns the Cartesian product of both tables
Complex queries involve multiple tables and conditions, and may require subqueries or temporary tables

What is cursor stored procedure and function different type of joins and complex queries

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