DNchngguo/FixCheckConstraint.java

import java.sql.*;

public class FixCheckConstraint {
    public static void main(String[] args) {
        try {
            Class.forName("dm.jdbc.driver.DmDriver");
            Connection conn = DriverManager.getConnection("jdbc:dm://192.168.0.145:30236", "WATERSHED", "WaterShed./1224");
            Statement stmt = conn.createStatement();
            
            // ??????????????
            System.out.println("??CHECK??...");
            try {
                stmt.executeUpdate("ALTER TABLE WATERSHED_MODEL DROP CONSTRAINT watershed_model_check_1");
                System.out.println("? CHECK?????????????");
            } catch (Exception e) {
                System.out.println("? ????????????????");
                e.printStackTrace();
            }
            
            // ?????????
            System.out.println("\n?????????...");
            PreparedStatement pstmt = conn.prepareStatement("INSERT INTO WATERSHED_MODEL (MODEL_NAME, MODEL_TYPE, MODEL_FORMAT, STATUS) VALUES (?, ?, ?, ?)");
            pstmt.setString(1, "????");
            pstmt.setString(2, "????");
            pstmt.setString(3, "test");
            pstmt.setString(4, "??"); // ?????
            int rows = pstmt.executeUpdate();
            System.out.println("? ?????'??'???????: " + rows);
            
            // ??????????
            pstmt.setString(4, "???"); // ?????
            rows = pstmt.executeUpdate();
            System.out.println("? ?????'???'???????: " + rows);
            
            // ?????????
            pstmt.setString(4, "NORMAL"); // ?????
            rows = pstmt.executeUpdate();
            System.out.println("? ???????'NORMAL'???????: " + rows);
            
            System.out.println("\n? ?????CHECK?????????????");
            
            stmt.close();
            pstmt.close();
            conn.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}