sql 数据库批量操作数据-开始事件

具体参考：http://www.blogjava.net/qileilove/archive/2014/05/23/414005.html
http://liuzhichao.com/p/1664.html
实例：

1.普通执行语句插入 37000ms +

2.SQLiteStatement 插入 34000 ms+

3.开启事物插入 trasaction 300+

db.beginTransaction();
xxxx….
db.setTransactionSuccessful();
db.endTransaction();

package com.example.testbatchinsertdata.db;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;

public class DBHelper extends SQLiteOpenHelper {

private static final String DB_NAME = "userdb";
private static final int DB_VERSION = 1;

public DBHelper(Context context) {
super(context, DB_NAME, null, DB_VERSION);
}

@Override
public void onCreate(SQLiteDatabase db) {
StringBuffer sql = new StringBuffer();
sql.append("create table users");
sql.append("(_id int PRIMARY KEY,name varchar,gender int,age int,phoneNumber varchar,address varchar)");

db.execSQL(sql.toString());
}

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

}

}

　　

package com.example.testbatchinsertdata.db;

public class User {
private int id;
private String name;
private int gender;
private int age;
private String phoneNumber;
private String address;

public int getId() {
return id;
}

public void setId(int id) {
this.id = id;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public int getGender() {
return gender;
}

public void setGender(int gender) {
this.gender = gender;
}

public int getAge() {
return age;
}

public void setAge(int age) {
this.age = age;
}

public String getPhoneNumber() {
return phoneNumber;
}

public void setPhoneNumber(String phoneNumber) {
this.phoneNumber = phoneNumber;
}

public String getAddress() {
return address;
}

public void setAddress(String address) {
this.address = address;
}

}

　　

package com.example.testbatchinsertdata.db;

import java.util.ArrayList;
import java.util.List;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteStatement;

public class UserDao {

private DBHelper dbHelper;
private SQLiteDatabase db;

private StringBuffer sql_insert;
private List<User> users;

public UserDao(Context context){
this.dbHelper = new DBHelper(context);
this.db = dbHelper.getWritableDatabase();

sql_insert = new StringBuffer();
sql_insert.append("INSERT INTO users(name,gender,age,phoneNumber,address) ");
sql_insert.append(" VALUES( ?, ?, ?, ?, ?)");

users = new ArrayList<User>();

//测试数据
for(int i = 0;i<1000;i++){
User user = new User();
user.setId(i);
user.setName("name"+i);
user.setGender(0);
user.setAge(0);
user.setPhoneNumber("13800138000");
user.setAddress("GuangDong ShenZhen No."+i);

users.add(user);
}

}

/**
* 使用SQLiteDatabase 的execSQL方法插入数据
* @return 返回执行所需要的时间
*/
public long insertexecSQL()
{

long start=System.currentTimeMillis();
for(User user:users){
Object[] bindArgs = {user.getName(),user.getGender(),user.getAge(),user.getPhoneNumber(),user.getAddress()};
db.execSQL(sql_insert.toString(),bindArgs);
}
long end = System.currentTimeMillis();

return end - start;
}

/**
* 使用SQLiteStatement的executeInsert方法插入数据
* @return 返回执行所需要的时间
*/
public long insertStatement()
{
long start = System.currentTimeMillis();
for(User user:users){
SQLiteStatement statement=	db.compileStatement(sql_insert.toString());
statement.bindString(1, user.getName());
statement.bindLong(2, user.getGender());
statement.bindLong(3, user.getAge());
statement.bindString(4, user.getPhoneNumber());
statement.bindString(5, user.getAddress());
statement.executeInsert();
}
long end = System.currentTimeMillis();
return end - start;
}
/**
* 使用Transaction的executeInsert方法插入数据
* @return 返回执行所需要的时间
*/
public long insertTransaction()
{

long start=System.currentTimeMillis();
db.beginTransaction();
for(User user:users){
Object[] bindArgs = {user.getName(),user.getGender(),user.getAge(),user.getPhoneNumber(),user.getAddress()};
db.execSQL(sql_insert.toString(),bindArgs);
}
db.setTransactionSuccessful();
db.endTransaction();
long end = System.currentTimeMillis();

return end - start;
}
}

　　

/**
* 使用SQLiteDatabase 的execSQL方法插入数据
* @return 返回执行所需要的时间
*/
public long insertexecSQL()
{

long start=System.currentTimeMillis();
for(User user:users){
Object[] bindArgs = {user.getName(),user.getGender(),user.getAge(),user.getPhoneNumber(),user.getAddress()};
db.execSQL(sql_insert.toString(),bindArgs);
}
long end = System.currentTimeMillis();

return end - start;
}

/**
* 使用SQLiteStatement的executeInsert方法插入数据
* @return 返回执行所需要的时间
*/
public long insertStatement()
{
long start = System.currentTimeMillis();
for(User user:users){
SQLiteStatement statement=    db.compileStatement(sql_insert.toString());
statement.bindString(1, user.getName());
statement.bindLong(2, user.getGender());
statement.bindLong(3, user.getAge());
statement.bindString(4, user.getPhoneNumber());
statement.bindString(5, user.getAddress());
statement.executeInsert();
}
long end = System.currentTimeMillis();
return end - start;
}
/**
* 使用Transaction的executeInsert方法插入数据
* @return 返回执行所需要的时间
*/
public long insertTransaction()
{

long start=System.currentTimeMillis();
db.beginTransaction();
for(User user:users){
Object[] bindArgs = {user.getName(),user.getGender(),user.getAge(),user.getPhoneNumber(),user.getAddress()};
db.execSQL(sql_insert.toString(),bindArgs);
}
db.setTransactionSuccessful();
db.endTransaction();
long end = System.currentTimeMillis();

return end - start;
}

ContentProvider 中 需要了解

1.索引操作

2.ContentProvider ContentProviderOperation

3.ContentProvider bulkInsert