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dev:jdbc:examples:simpleselect [2009/11/19 06:06] tdo |
dev:jdbc:examples:simpleselect [2016/06/28 22:38] |
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| - | ====== JDBC Example: Simple Select Statement ====== | ||
| - | <code java> | ||
| - | // Omnidex JDBC Example: Simple Select | ||
| - | import java.io.*; | ||
| - | import java.sql.*; | ||
| - | public class OdxSimpleSelect { | ||
| - | |||
| - | public OdxSimpleSelect() { } | ||
| - | |||
| - | // Main | ||
| - | public static void main(String[] args){ | ||
| - | // Declare JDBC objects | ||
| - | Connection conn = null; | ||
| - | Statement stmt = null; | ||
| - | ResultSet rs = null; | ||
| - | |||
| - | // Register the Omnidex JDBC driver | ||
| - | try{Class.forName("omnidex.jdbc.OdxJDBCDriver");} | ||
| - | catch(ClassNotFoundException ce) | ||
| - | { | ||
| - | pw.println("Driver error: " + ce); | ||
| - | System.out.println("Driver error: " + ce); | ||
| - | System.exit(0); | ||
| - | } | ||
| - | |||
| - | // Connect to the Omnidex Environment Catalog | ||
| - | try | ||
| - | { | ||
| - | conn = DriverManager.getConnection( | ||
| - | "jdbc:omnidex:c:\\odxtesting\\dsn\\odx_file_ordersffl.dsn"); | ||
| - | }catch(SQLException se) { | ||
| - | pw.println("Connect error: " + se); | ||
| - | System.out.println("Connect error: " + se); | ||
| - | System.exit(0); | ||
| - | } | ||
| - | |||
| - | // The SQL statement to be executed | ||
| - | String sql = "select * from customers where state='co'"; | ||
| - | try | ||
| - | { | ||
| - | stmt = conn.createStatement(); | ||
| - | stmt.execute(sql); | ||
| - | rs = stmt.getResultSet(); | ||
| - | |||
| - | // Print the results from the Result Set returned after the Select | ||
| - | while(rs.next()){ | ||
| - | System.out.print(rs.getString(1) + "\n"); | ||
| - | System.out.print(rs.getString(2) + "\n"); | ||
| - | System.out.print(rs.getString(3) + "\n"); | ||
| - | System.out.println(rs.getString(4)); | ||
| - | } | ||
| - | }catch(SQLException se) { | ||
| - | System.out.println("Execute query error: " + se); | ||
| - | } | ||
| - | |||
| - | // Close the Result Set, Statement and Connection objects */ | ||
| - | try{ | ||
| - | if(rs != null) rs.close(); | ||
| - | if(stmt != null) stmt.close(); | ||
| - | if(conn != null) conn.close(); | ||
| - | }catch(SQLException se) { | ||
| - | System.out.println("Close error: " + se); | ||
| - | } | ||
| - | System.out.println("End of program."); | ||
| - | } // End Main | ||
| - | } // End Class | ||
| - | </code> | ||