使用JDBC更新、查询数据库实例:
- package org.Oracle.insert;
-
- import java.sql.Connection;
- import java.sql.DriverManager;
- import java.sql.ResultSet;
- import java.sql.Statement;
-
- public class InsertDeom {
- public static final String DBDRIVER = "oracle.jdbc.driver.OracleDriver";
- public static final String DBURL = "jdbc:oracle:thin:@127.0.0.1:1521:ORCL";
- public static final String DBUSER = "scott";
- public static final String DBPASS = "tiger";
-
-
-
- public static void main(String[] args) throws Exception{
-
- Connection conn = null;
- Statement stmt = null;
-
- Class.forName(DBDRIVER);
- conn = DriverManager.getConnection(DBURL, DBUSER, DBPASS);
-
- stmt = conn.createStatement();
- String sql = "insert into person(name,age,birthday,salary)values("王五",22,TO_Date("1986-2-22","yyyy-mm-dd"),4000)";
- stmt.executeUpdate(sql);
-
- stmt.close();
- conn.close();
-
-
-
-
- }
-
- }
|
- package org.oracle.select;
-
- import java.sql.Connection;
- import java.sql.DriverManager;
- import java.sql.ResultSet;
- import java.sql.Statement;
-
- public class ResultDeom {
- public static final String DBDRIVER = "oracle.jdbc.driver.OracleDriver";
- public static final String DBURL = "jdbc:oracle:thin:@127.0.0.1:1521:ORCL";
- public static final String DBUSER = "scott";
- public static final String DBPASS = "tiger";
-
-
-
- public static void main(String[] args) throws Exception{
-
- Connection conn = null;
- Statement stmt = null;
- ResultSet rs = null;
-
- Class.forName(DBDRIVER);
- conn = DriverManager.getConnection(DBURL, DBUSER, DBPASS);
-
- stmt = conn.createStatement();
- // stmt.executeUpdate("insert into person(name,age,birthday,salary)values("李四",22,TO_Date("1986-2-22","yyyy-mm-dd"),4000)");
-
- rs = stmt.executeQuery("select name,age,birthday,salary from person");
-
- while(rs.next()){
- System.out.print("name:"+rs.getString("name")+". ");
- System.out.print("age:"+rs.getInt("age")+". ");
- System.out.print("birthday:"+rs.getDate("birthday")+". ");
- System.out.println("salary:"+rs.getFloat("salary")+". ");
- }
- rs.close();
- stmt.close();
- conn.close();
-
-
-
-
- }
-
- }
|
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