Java Tutorial/Database/ResultSet Holdability

Check ResultSet Holdability

You can get the result set holdability in three ways.

1. int Statement.getResultSetHoldability()
2. int DatabaseMetaData.getResultSetHoldability()
3. int Connection.getHoldability()

   <source lang="java">

import java.sql.Connection; import java.sql.DatabaseMetaData; import java.sql.DriverManager; import java.sql.ResultSet; public class Main {

 public static void main(String[] args) throws Exception {
   Connection conn = getConnection();
   DatabaseMetaData dbMeta = conn.getMetaData();
   if (dbMeta.supportsResultSetHoldability(ResultSet.HOLD_CURSORS_OVER_COMMIT)) {
     System.out.println("this database hold cursors over commit");
   } else if (dbMeta.supportsResultSetHoldability(ResultSet.CLOSE_CURSORS_AT_COMMIT)) {
     System.out.println("this database close cursors at commit");
   }
   conn.close();
 }
 private static Connection getConnection() throws Exception {
   Class.forName("org.hsqldb.jdbcDriver");
   String url = "jdbc:hsqldb:mem:data/tutorial";
   return DriverManager.getConnection(url, "sa", "");
 }

}</source>

this database hold cursors over commit

ResultSet Holdability

You may improve database performance by including the ResultSet holdability:

1. java.sql.ResultSet.HOLD_CURSORS_OVER_COMMIT
2. java.sql.ResultSet.CLOSE_CURSORS_AT_COMMIT

Set ResultSet Holdability Using the Connection Object

   <source lang="java">

int holdability = java.sql.ResultSet.HOLD_CURSORS_OVER_COMMIT; conn.setHoldability(holdability);</source>