Java操作Sqlite数据库步骤:
1. 导入Sqlite jdbc
本文使用sqlite-jdbc-3.7.2.jar,下载地址 http://pan.baidu.com/s/1kVHAGdD
2. 编写jdbc连接代码
public class OpSqliteDB {
private static final String Class_Name = "org.sqlite.JDBC";
private static final String DB_URL = "jdbc:sqlite:F:\xxxdatabase.db";
public static void main(String args[]) {
// load the sqlite-JDBC driver using the current class loader
Connection connection = null;
try {
connection = createConnection();
func1(connection);
System.out.println("Success!");
} catch (SQLException e) {
System.err.println(e.getMessage());
} catch(Exception e) {
e.printStackTrace();
} finally{
try {
if (connection != null)
connection.close();
} catch (SQLException e) {
// connection close failed.
System.err.println(e);
}
}
}
// 创建Sqlite数据库连接
public static Connection createConnection() throws SQLException, ClassNotFoundException {
Class.forName(Class_Name);
return DriverManager.getConnection(DB_URL);
}
public static void func1(Connection connection) throws SQLException {
Statement statement = connection.createStatement();
Statement statement1 = connection.createStatement();
statement.setQueryTimeout(30); // set timeout to 30 sec.
// 执行查询语句
ResultSet rs = statement.executeQuery("select * from table_name1");
while (rs.next()) {
String col1 = rs.getString("col1_name");
String col2 = rs.getString("col2_name");
System.out.println("col1 = " + col1 + " col2 = " + col2);
System.out.println(location);
// 执行插入语句操作
statement1.executeUpdate("insert into table_name2(col2) values('" + col2_value + "')");
// 执行更新语句
statement1.executeUpdate("update table_name2 set 字段名1=" + 字段值1 + " where 字段名2='" + 字段值2 + "'");
}
}
以下是其他的一些Sql语句,来自网址:http://www.cnblogs.com/linjiqin/archive/2011/05/26/2059182.html (Android上面使用Sqlite)
查询语句:
select * from 表名 where 条件子句 group by 分组字句 having ... order by 排序子句
如:
select * from person
select * from person order by id desc
select name from person group by name having count(*)>1
分页SQL与mysql类似,下面SQL语句获取5条记录,跳过前面3条记录
select * from Account limit 5 offset 3
或者
select * from Account limit 3,5
插入语句:
insert into 表名(字段列表) values(值列表)
如: insert into person(name, age) values(‘传智’,3)
更新语句:
update 表名 set 字段名=值 where 条件子句
如:update person set name=‘传智‘ where id=10
删除语句:
delete from 表名 where 条件子句
如:delete from person where id=10