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通过JDBC往Oracle中插入timestamp类型数据
表结构:
create table TEST(
ID INTEGER,
BIRTHDAY TIMESTAMP
);
使用JDBC将日期插入到TIMESTAMP类型字段:
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.text.SimpleDateFormat;
import java.util.Date;
public class Test {
static {
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
/**
* 获得Connection
*
* @return
*/
public static Connection getConnection() {
Connection conn = null;
try {
conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521/orcl", "root", "root");
} catch (SQLException e) {
e.printStackTrace();
}
return conn;
}
public static void main(String[] args) throws SQLException {
// TODO Auto-generated method stub
PreparedStatement pst = null;
Connection conn = getConnection();
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String myDate = df.format(new Date()); //当前时间
String sql = "insert into test(id,birthday) values('1',to_timestamp('" + myDate + "','yyyy-mm-dd hh24:mi:ss'))";
pst = conn.prepareStatement(sql);
pst.executeUpdate();
// 省略IO流close
}
}
如上例子中是使用to_timestamp将字符型转成timestamp来达到插入timestamp数据的目的。但是当前的insert语句只使用于oracle,当环境变更为mysql时则不行(没有to_timestamp函数)。
为此我们做出如下修改:
package com.ssh.model;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Timestamp;
import java.text.SimpleDateFormat;
import java.util.Date;
public class Test {
static {
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
/**
* 获得Connection
*
* @return
*/
public static Connection getConnection() {
Connection conn = null;
try {
conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521/orcl", "root", "root");
} catch (SQLException e) {
e.printStackTrace();
}
return conn;
}
public static void main(String[] args) throws SQLException {
// TODO Auto-generated method stub
PreparedStatement pst = null;
Connection conn = getConnection();
String sql = "insert into test(id,birthday) values('1'," + new Timestamp(System.currentTimeMillis()) + ")";
pst = conn.prepareStatement(sql);
pst.executeUpdate();
// 省略IO流close
}
}
这样做到了兼容。
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