Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class Main {
    public static void main(String[] args) throws Exception {
        Connection conn = getMySqlConnection();
        System.out.println("Got Connection.");
        Statement st = conn.createStatement();
        st.executeUpdate("drop table survey;");
        st.executeUpdate("create table survey (id int,name varchar(30));");
        st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");

        DatabaseMetaData dbMetaData = conn.getMetaData();
        ResultSet rs = dbMetaData.getProcedureColumns(conn.getCatalog(), null, "procedureNamePattern",
                "columnNamePattern");

        while (rs.next()) {
            // get stored procedure metadata
            String procedureCatalog = rs.getString(1);
            String procedureSchema = rs.getString(2);
            String procedureName = rs.getString(3);
            String columnName = rs.getString(4);
            short columnReturn = rs.getShort(5);
            int columnDataType = rs.getInt(6);
            String columnReturnTypeName = rs.getString(7);
            int columnPrecision = rs.getInt(8);
            int columnByteLength = rs.getInt(9);
            short columnScale = rs.getShort(10);
            short columnRadix = rs.getShort(11);
            short columnNullable = rs.getShort(12);
            String columnRemarks = rs.getString(13);

            System.out.println("stored Procedure name=" + procedureName);
            System.out.println("procedureCatalog=" + procedureCatalog);
            System.out.println("procedureSchema=" + procedureSchema);
            System.out.println("procedureName=" + procedureName);
            System.out.println("columnName=" + columnName);
            System.out.println("columnReturn=" + columnReturn);
            System.out.println("columnDataType=" + columnDataType);
            System.out.println("columnReturnTypeName=" + columnReturnTypeName);
            System.out.println("columnPrecision=" + columnPrecision);
            System.out.println("columnByteLength=" + columnByteLength);
            System.out.println("columnScale=" + columnScale);
            System.out.println("columnRadix=" + columnRadix);
            System.out.println("columnNullable=" + columnNullable);
            System.out.println("columnRemarks=" + columnRemarks);
        }

        st.close();
        conn.close();
    }

    private static Connection getHSQLConnection() throws Exception {
        Class.forName("org.hsqldb.jdbcDriver");
        System.out.println("Driver Loaded.");
        String url = "jdbc:hsqldb:data/tutorial";
        return DriverManager.getConnection(url, "sa", "");
    }

    public static Connection getMySqlConnection() throws Exception {
        String driver = "org.gjt.mm.mysql.Driver";
        String url = "jdbc:mysql://localhost/demo2s";
        String username = "oost";
        String password = "oost";

        Class.forName(driver);
        Connection conn = DriverManager.getConnection(url, username, password);
        return conn;
    }

    public static Connection getOracleConnection() throws Exception {
        String driver = "oracle.jdbc.driver.OracleDriver";
        String url = "jdbc:oracle:thin:@localhost:1521:caspian";
        String username = "mp";
        String password = "mp2";

        Class.forName(driver); // load Oracle driver
        Connection conn = DriverManager.getConnection(url, username, password);
        return conn;
    }
}