JDBC Lecture 4 | INSERT, UPDATE & DELETE Using Statement | executeUpdate() & execute() | Hindi
Welcome to Lecture 4 of the Complete JDBC Tutorial Series.
In this lecture, you'll learn how to perform INSERT, UPDATE, and DELETE operations using the Statement Interface in Java. We begin with a quick revision of CRUD operations, understand the difference between SELECT and NON-SELECT queries, explore how the executeUpdate() method works, and perform practical database operations. Finally, you'll learn about the versatile execute() method, its boolean return type, and how it handles both SELECT and NON-SELECT SQL queries. This lecture is packed with practical coding examples to strengthen your JDBC fundamentals.
📚 Topics Covered
✅ Quick Revision of CRUD Operations
Create (INSERT)
Read (SELECT)
Update (UPDATE)
Delete (DELETE)
✅ SELECT vs NON-SELECT Queries
✅ Understanding executeUpdate()
Return Type
Rows Affected
INSERT Operation
UPDATE Operation
DELETE Operation
✅ Understanding execute() Method
Boolean Return Value
Working with ResultSet
Working with Update Count
When to Use execute()
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