The document discusses the process of connecting to a database using a driver.connect() method, which creates a statement object for the connection session. It outlines the functionalities of executing SQL statements, including execute(), executeQuery(), and executeUpdate() methods, and highlights their capabilities in handling different types of SQL commands and retrieving results. The document emphasizes the flexibility in executing statements without prior knowledge of whether they involve queries or updates.

4. methods for
It can not directly be created in code; instead, the Connection interface is created by the
Driver.connect() method.

5. This method creates a Statement object associated with this Connection session.

6. This method provides a PreparedStatement object to be associated with this Connection session.

7. •
•

9. boolean execute
(
String Sql
)
ResultSet executeQuery
(
String Sql
)
int executeUpdate
(
String Sql
)
1.
It allows us to execute the Statement when we do not
know if it is a query or an update.
2.
It may return multiple results.
3. Use getResultSet to retrieve the ResultSet.
Executes the SQL string and returns a single
ResultSet object.
Executes a SQL string, which must be an
INSERT,UPDATE, DELETE, or a statement that
doesn’t return anything.

10. Example: Select

13. Example: Insert

14. Example: Delete

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