Modifying result set data sample
This Microsoft JDBC Driver for SQL Server sample application demonstrates how to retrieve an updatable set of data from a SQL Server database. Then, using methods of the SQLServerResultSet object, it inserts, modifies, and then finally deletes a row of data from the set of data.
The code file for this sample is named UpdateResultSet.java, and it can be found in the following location:
\<installation directory>\sqljdbc_<version>\<language>\samples\resultsets
Requirements
To run this sample application, you must set the classpath to include the mssql-jdbc jar file. You'll also need access to the AdventureWorks2022 sample database. For more information about how to set the classpath, see Using the JDBC Driver.
Note
The Microsoft JDBC Driver for SQL Server provides mssql-jdbc class library files to be used depending on your preferred Java Runtime Environment (JRE) settings. For more information about which JAR file to choose, see System Requirements for the JDBC Driver.
Example
The sample code makes a connection to the AdventureWorks2022 sample database. Then, using a SQL statement with the SQLServerStatement object, it runs the SQL statement and places the data that it returns into an updatable SQLServerResultSet object.
Next, the sample code uses the moveToInsertRow method to move the result set cursor to the insert row. It then uses a series of updateString methods to insert data into the new row. After that, it calls the insertRow method to persist the new row of data back to the database.
After inserting the new row of data, the sample code uses a SQL statement to retrieve the previously inserted row. From there, it uses the combination of updateString and updateRow methods to update the row of data and again persist it back to the database.
Finally, the sample code retrieves the previously updated row of data and then deletes it from the database using the deleteRow method.
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class UpdateResultSet {
public static void main(String[] args) {
// Create a variable for the connection string.
String connectionUrl = "jdbc:sqlserver://<server>:<port>;encrypt=true;databaseName=AdventureWorks;user=<user>;password=<password>";
try (Connection con = DriverManager.getConnection(connectionUrl);
Statement stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);) {
// Create and execute a SQL statement, retrieving an updateable result set.
String SQL = "SELECT * FROM HumanResources.Department;";
ResultSet rs = stmt.executeQuery(SQL);
// Insert a row of data.
rs.moveToInsertRow();
rs.updateString("Name", "Accounting");
rs.updateString("GroupName", "Executive General and Administration");
rs.updateString("ModifiedDate", "08/01/2006");
rs.insertRow();
// Retrieve the inserted row of data and display it.
SQL = "SELECT * FROM HumanResources.Department WHERE Name = 'Accounting';";
rs = stmt.executeQuery(SQL);
displayRow("ADDED ROW", rs);
// Update the row of data.
rs.first();
rs.updateString("GroupName", "Finance");
rs.updateRow();
// Retrieve the updated row of data and display it.
rs = stmt.executeQuery(SQL);
displayRow("UPDATED ROW", rs);
// Delete the row of data.
rs.first();
rs.deleteRow();
System.out.println("ROW DELETED");
}
// Handle any errors that may have occurred.
catch (SQLException e) {
e.printStackTrace();
}
}
private static void displayRow(String title,
ResultSet rs) throws SQLException {
System.out.println(title);
while (rs.next()) {
System.out.println(rs.getString("Name") + " : " + rs.getString("GroupName"));
System.out.println();
}
}
}