Android Sqlite数据库执行插入查询更新删除的操作对比

下面是在Android4.0上，利用Sqlite数据库的insert，query，update，delete函数以及execSql，rawQuery函数执行插入，查询，更新，删除操作花费时间的对比结果。

是在执行相同的动作，记录条数也一样的情况下的对比，多次验证的结果是：

（1）如果批量执行的记录数在1000条，则Android SqliteDatabase提供的insert，query，update，delete函数和直接写SQL文的execSql，rawQuery的效率差不多，几乎一样。所以使用哪种放到都可以，不会影响到执行效率。

（2）如果批量执行的记录数在10万条，则会存在差别。在某台手机上SqliteDatabase提供的insert执行插入操作耗时45秒，要比execSql插入35秒慢10秒左右。

可见在数据库大的情况下，还是有差别的。execSql省去了拼接sql语句的步骤，要比SqliteDatabase提供的insert，query，update，delete等函数效率高。当数据库越大，差别也越大。

下面是验证代码：

 

public class MainActivity extends Activity {
    private static final String TAG = "MainActivity";

    private DBHelper mDbHelper = null;
    private static TextView mTvInfo;
    private static ProgressDialog mDialog = null;

    private static Handler mHandler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            // TODO Auto-generated method stub
            if(mDialog != null) {
                mDialog.dismiss();
                mDialog = null;
            }
            if (msg.what == 0) {
                Bundle b = msg.getData();
                int seconds = b.getInt("seconds");
                int ms = b.getInt("ms");
                StringBuilder builder = new StringBuilder("insert插入1000条记录花费时间：");
                if (seconds > 0) {
                    builder.append(seconds).append("s ");
                }
                builder.append(ms).append("ms");
                String strLines[] = mTvInfo.getText().toString().split("
");
                // 最多显示8条信息
                for (int i = 0; i < strLines.length; i++) {
                    builder.append('
').append(strLines[i]);
                    if (i == 6) {
                        break; // 加上原来最多7条信息，共显示8条信息
                    }
                }
                mTvInfo.setText(builder.toString());
            } else if (msg.what == 1) {
                Bundle b = msg.getData();
                int seconds = b.getInt("seconds");
                int ms = b.getInt("ms");
                StringBuilder builder = new StringBuilder("execSql插入1000条记录花费时间：");
                if (seconds > 0) {
                    builder.append(seconds).append("s ");
                }
                builder.append(ms).append("ms");

                String strLines[] = mTvInfo.getText().toString().split("
");
                // 最多显示8条信息
                for (int i = 0; i < strLines.length; i++) {
                    builder.append('
').append(strLines[i]);
                    if (i == 6) {
                        break; // 加上原来最多7条信息，共显示8条信息
                    }
                }
                mTvInfo.setText(builder.toString());
            } else if (msg.what == 10) {
                Bundle b = msg.getData();
                int count = b.getInt("count");
                int seconds = b.getInt("seconds");
                int ms = b.getInt("ms");
                StringBuilder builder = new StringBuilder("query查询");
                builder.append(count).append("条记录花费时间：");
                if (seconds > 0) {
                    builder.append(seconds).append("s ");
                }
                builder.append(ms).append("ms");

                String strLines[] = mTvInfo.getText().toString().split("
");
                // 最多显示8条信息
                for (int i = 0; i < strLines.length; i++) {
                    builder.append('
').append(strLines[i]);
                    if (i == 6) {
                        break; // 加上原来最多7条信息，共显示8条信息
                    }
                }
                mTvInfo.setText(builder.toString());
            } else if (msg.what == 11) {
                Bundle b = msg.getData();
                int count = b.getInt("count");
                int seconds = b.getInt("seconds");
                int ms = b.getInt("ms");
                StringBuilder builder = new StringBuilder("rawQuery查询");
                builder.append(count).append("条记录花费时间：");
                if (seconds > 0) {
                    builder.append(seconds).append("s ");
                }
                builder.append(ms).append("ms");

                String strLines[] = mTvInfo.getText().toString().split("
");
                // 最多显示8条信息
                for (int i = 0; i < strLines.length; i++) {
                    builder.append('
').append(strLines[i]);
                    if (i == 6) {
                        break; // 加上原来最多7条信息，共显示8条信息
                    }
                }
                mTvInfo.setText(builder.toString());
            } else if (msg.what == 20) {
                Bundle b = msg.getData();
                int count = b.getInt("count");
                int seconds = b.getInt("seconds");
                int ms = b.getInt("ms");
                StringBuilder builder = new StringBuilder("update更新");
                builder.append(count).append("条记录花费时间：");
                if (seconds > 0) {
                    builder.append(seconds).append("s ");
                }
                builder.append(ms).append("ms");

                String strLines[] = mTvInfo.getText().toString().split("
");
                // 最多显示8条信息
                for (int i = 0; i < strLines.length; i++) {
                    builder.append('
').append(strLines[i]);
                    if (i == 6) {
                        break; // 加上原来最多7条信息，共显示8条信息
                    }
                }
                mTvInfo.setText(builder.toString());
            } else if (msg.what == 21) {
                Bundle b = msg.getData();
                int seconds = b.getInt("seconds");
                int ms = b.getInt("ms");
                StringBuilder builder = new StringBuilder("execSql更新1000条记录花费时间：");
                if (seconds > 0) {
                    builder.append(seconds).append("s ");
                }
                builder.append(ms).append("ms");

                String strLines[] = mTvInfo.getText().toString().split("
");
                // 最多显示8条信息
                for (int i = 0; i < strLines.length; i++) {
                    builder.append('
').append(strLines[i]);
                    if (i == 6) {
                        break; // 加上原来最多7条信息，共显示8条信息
                    }
                }
                mTvInfo.setText(builder.toString());
            } else if (msg.what == 30) {
                Bundle b = msg.getData();
                int count = b.getInt("count");
                int seconds = b.getInt("seconds");
                int ms = b.getInt("ms");
                StringBuilder builder = new StringBuilder("delete删除");
                builder.append(count).append("条记录花费时间：");
                if (seconds > 0) {
                    builder.append(seconds).append("s ");
                }
                builder.append(ms).append("ms");

                String strLines[] = mTvInfo.getText().toString().split("
");
                // 最多显示8条信息
                for (int i = 0; i < strLines.length; i++) {
                    builder.append('
').append(strLines[i]);
                    if (i == 6) {
                        break; // 加上原来最多7条信息，共显示8条信息
                    }
                }
                mTvInfo.setText(builder.toString());
            } else if (msg.what == 31) {
                Bundle b = msg.getData();
                int seconds = b.getInt("seconds");
                int ms = b.getInt("ms");
                StringBuilder builder = new StringBuilder("execSql删除1000条记录花费时间：");
                if (seconds > 0) {
                    builder.append(seconds).append("s ");
                }
                builder.append(ms).append("ms");

                String strLines[] = mTvInfo.getText().toString().split("
");
                // 最多显示8条信息
                for (int i = 0; i < strLines.length; i++) {
                    builder.append('
').append(strLines[i]);
                    if (i == 6) {
                        break; // 加上原来最多7条信息，共显示8条信息
                    }
                }
                mTvInfo.setText(builder.toString());
            }


        }
    };

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button btnCreateDb = (Button)findViewById(R.id.btnCreateDb);
        btnCreateDb.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                mDbHelper = new DBHelper(MainActivity.this, "test", null, 1);
            }

        });

        // insert插入
        Button btnInsert = (Button)findViewById(R.id.btnInsert);
        btnInsert.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                if (mDbHelper != null) {
                    mDialog = ProgressDialog.show(MainActivity.this, "insert插入", "正在插入1000条记录，请稍等……", true);
                    new Thread() { // 开启线程执行防止阻塞
                        @Override
                        public void run() {
                            SQLiteDatabase db = mDbHelper.getWritableDatabase();
                            try {
                                // 利用事物批量插入数据以提高效率
                                ContentValues values = new ContentValues();
                                long startms = System.currentTimeMillis();
                                db.beginTransaction();
                                for (int i = 0; i < 1000; i++) {
                                    values.put("name", new String("张三") + i);
                                    values.put("birthday", "2012-12-08");
                                    values.put("gender", i%2);
                                    db.insert("student", null, values);
                                }
                                db.setTransactionSuccessful();
                                db.endTransaction();
                                long endms = System.currentTimeMillis();
                                int seconds = (int)((endms - startms)/1000);
                                int ms = (int)((endms - startms)%1000);

                                Message msg = new Message();
                                msg.what = 0;
                                // 使用bundle对象来传递数据
                                Bundle b = new Bundle();
                                if(seconds > 0) {
                                    b.putInt("seconds", seconds);
                                }
                                b.putInt("ms", ms);
                                msg.setData(b);
                                mHandler.sendMessage(msg);
                            } catch(Exception e) {
                                e.printStackTrace();
                            } finally {
                                db.close(); // 关闭数据库
                            }
                        }
                    }.start();
                } else {
                    Toast.makeText(MainActivity.this, "请先创建数据库！", Toast.LENGTH_SHORT).show();
                }
            }
        });

        // execSQL插入
        Button btnExecSqlInsert = (Button)findViewById(R.id.btnExecSqlInsert);
        btnExecSqlInsert.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                if (mDbHelper != null) {
                    mDialog = ProgressDialog.show(MainActivity.this, "execSQL插入", "正在插入1000条记录，请稍等……", true);
                    new Thread() { // 开启线程执行防止阻塞
                        @Override
                        public void run() {
                            SQLiteDatabase db = mDbHelper.getWritableDatabase();
                            try {
                                // 利用事物批量插入数据以提高效率
                                long startms = System.currentTimeMillis();
                                db.beginTransaction();
                                for (int i = 0; i < 1000; i++) {
                                    db.execSQL("INSERT INTO student(name, birthday, gender) values(?, ?, ?)" ,
                                            new Object[]{new String("李四" + i), "2012-12-08", i%2});
                                }
                                db.setTransactionSuccessful();
                                db.endTransaction();
                                long endms = System.currentTimeMillis();
                                int seconds = (int)((endms - startms)/1000);
                                int ms = (int)((endms - startms)%1000);

                                Message msg = new Message();
                                msg.what = 1;
                                // 使用bundle对象来传递数据
                                Bundle b = new Bundle();
                                if(seconds > 0) {
                                    b.putInt("seconds", seconds);
                                }
                                b.putInt("ms", ms);
                                msg.setData(b);
                                mHandler.sendMessage(msg);
                            } catch(Exception e) {
                                e.printStackTrace();
                            } finally {
                                db.close(); // 关闭数据库
                            }
                        }
                    }.start();
                }else {
                    Toast.makeText(MainActivity.this, "请先创建数据库！", Toast.LENGTH_SHORT).show();
                }
            }

        });

        // query查询
        Button btnQuery = (Button)findViewById(R.id.btnQuery);
        btnQuery.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                if (mDbHelper != null) {
                    mDialog = ProgressDialog.show(MainActivity.this, "query查询", "正在查询记录，请稍等……", true);
                    new Thread() { // 开启线程执行防止阻塞
                        @Override
                        public void run() {
                            SQLiteDatabase db = mDbHelper.getWritableDatabase();

                            try {
                                Log.d(TAG, "query Start：" + getDate());
                                long startms = System.currentTimeMillis();
                                // 查询所有记录
                                Cursor c = db.query("student", null, null, null, null, null, new String("id ASC LIMIT 0,1000"));
                                Log.d(TAG, "query End：" + getDate());
                                long endms = System.currentTimeMillis();
                                int seconds = (int)((endms - startms)/1000);
                                int ms = (int)((endms - startms)%1000);
                                if (c != null) {
                                    Message msg = new Message();
                                    msg.what = 10;
                                    // 使用bundle对象来传递数据
                                    Bundle b = new Bundle();
                                    b.putInt("count", c.getCount());
                                    if(seconds > 0) {
                                        b.putInt("seconds", seconds);
                                    }
                                    b.putInt("ms", ms);
                                    msg.setData(b);
                                    mHandler.sendMessage(msg);
                                    c.close();
                                }
                            } catch(Exception e) {
                                e.printStackTrace();
                            } finally {
                                db.close(); // 关闭数据库
                            }
                        }
                    }.start();
                }else {
                    Toast.makeText(MainActivity.this, "请先创建数据库！", Toast.LENGTH_SHORT).show();
                }
            }

        });

        // rawQuery查询
        Button btnRawQuery = (Button)findViewById(R.id.btnRawQuery);
        btnRawQuery.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                if (mDbHelper != null) {
                    mDialog = ProgressDialog.show(MainActivity.this, "rawQuery查询", "正在查询记录，请稍等……", true);
                    new Thread() { // 开启线程执行防止阻塞
                        @Override
                        public void run() {
                            SQLiteDatabase db = mDbHelper.getWritableDatabase();

                            try {
                                Log.d(TAG, "rawQuery Start：" + getDate());
                                long startms = System.currentTimeMillis();
                                // 查询所有记录
                                Cursor c = db.rawQuery("SELECT * FROM student ORDER BY id ASC LIMIT 0,1000", null);
                                Log.d(TAG, "rawQuery End：" + getDate());
                                long endms = System.currentTimeMillis();
                                int seconds = (int)((endms - startms)/1000);
                                int ms = (int)((endms - startms)%1000);
                                if (c != null) {
                                    Message msg = new Message();
                                    msg.what = 11;
                                    // 使用bundle对象来传递数据
                                    Bundle b = new Bundle();
                                    b.putInt("count", c.getCount());
                                    if(seconds > 0) {
                                        b.putInt("seconds", seconds);
                                    }
                                    b.putInt("ms", ms);
                                    msg.setData(b);
                                    mHandler.sendMessage(msg);
                                    c.close();
                                }
                            } catch(Exception e) {
                                e.printStackTrace();
                            } finally {
                                db.close(); // 关闭数据库
                            }
                        }
                    }.start();
                } else {
                    Toast.makeText(MainActivity.this, "请先创建数据库！", Toast.LENGTH_SHORT).show();
                }
            }

        });

        // update更新
        Button btnUpdate = (Button)findViewById(R.id.btnUpdate);
        btnUpdate.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                if (mDbHelper != null) {
                    mDialog = ProgressDialog.show(MainActivity.this, "update更新", "正在更新1000条记录，请稍等……", true);
                    new Thread() { // 开启线程执行防止阻塞
                        @Override
                        public void run() {
                            SQLiteDatabase db = mDbHelper.getWritableDatabase();
                            try {
                                ContentValues values = new ContentValues();
                                long startms = System.currentTimeMillis();
                                values.put("name", new String("王五"));
                                values.put("birthday", "2012-12-09");
                                values.put("gender", 0);
                                int count = db.update("student", values, new String("id IN (SELECT id FROM student ORDER BY id ASC LIMIT 0,1000)"), null);
                                long endms = System.currentTimeMillis();
                                int seconds = (int)((endms - startms)/1000);
                                int ms = (int)((endms - startms)%1000);

                                Message msg = new Message();
                                msg.what = 20;
                                // 使用bundle对象来传递数据
                                Bundle b = new Bundle();
                                b.putInt("count", count);
                                if(seconds > 0) {
                                    b.putInt("seconds", seconds);
                                }
                                b.putInt("ms", ms);
                                msg.setData(b);
                                mHandler.sendMessage(msg);
                            } catch(Exception e) {
                                e.printStackTrace();
                            } finally {
                                db.close(); // 关闭数据库
                            }
                        }
                    }.start();
                } else {
                    Toast.makeText(MainActivity.this, "请先创建数据库！", Toast.LENGTH_SHORT).show();
                }
            }
        });

        // execSQL更新
        Button btnExecSqlUpdate = (Button)findViewById(R.id.btnExecSqlUpdate);
        btnExecSqlUpdate.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                if (mDbHelper != null) {
                    mDialog = ProgressDialog.show(MainActivity.this, "execSQL更新", "正在更新1000条记录，请稍等……", true);
                    new Thread() { // 开启线程执行防止阻塞
                        @Override
                        public void run() {
                            SQLiteDatabase db = mDbHelper.getWritableDatabase();
                            try {
                                long startms = System.currentTimeMillis();
                                db.execSQL("UPDATE student SET name = ?, birthday = ?, gender = ? WHERE id IN (SELECT id FROM student ORDER BY id ASC LIMIT 0,1000)" ,
                                        new Object[]{new String("马六"), "2012-12-10", 1});
                                long endms = System.currentTimeMillis();
                                int seconds = (int)((endms - startms)/1000);
                                int ms = (int)((endms - startms)%1000);

                                Message msg = new Message();
                                msg.what = 21;
                                // 使用bundle对象来传递数据
                                Bundle b = new Bundle();
                                if(seconds > 0) {
                                    b.putInt("seconds", seconds);
                                }
                                b.putInt("ms", ms);
                                msg.setData(b);
                                mHandler.sendMessage(msg);
                            } catch(Exception e) {
                                e.printStackTrace();
                            } finally {
                                db.close(); // 关闭数据库
                            }
                        }
                    }.start();
                }else {
                    Toast.makeText(MainActivity.this, "请先创建数据库！", Toast.LENGTH_SHORT).show();
                }
            }

        });

        // delete删除
        Button btnDelete = (Button)findViewById(R.id.btnDelete);
        btnDelete.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                if (mDbHelper != null) {
                    mDialog = ProgressDialog.show(MainActivity.this, "delete删除", "正在删除1000条记录，请稍等……", true);
                    new Thread() { // 开启线程执行防止阻塞
                        @Override
                        public void run() {
                            SQLiteDatabase db = mDbHelper.getWritableDatabase();
                            try {
                                long startms = System.currentTimeMillis();
                                int count = db.delete("student", new String("id IN (SELECT id FROM student ORDER BY id ASC LIMIT 0,1000)"), null);
                                long endms = System.currentTimeMillis();
                                int seconds = (int)((endms - startms)/1000);
                                int ms = (int)((endms - startms)%1000);

                                Message msg = new Message();
                                msg.what = 30;
                                // 使用bundle对象来传递数据
                                Bundle b = new Bundle();
                                b.putInt("count", count);
                                if(seconds > 0) {
                                    b.putInt("seconds", seconds);
                                }
                                b.putInt("ms", ms);
                                msg.setData(b);
                                mHandler.sendMessage(msg);
                            } catch(Exception e) {
                                e.printStackTrace();
                            } finally {
                                db.close(); // 关闭数据库
                            }
                        }
                    }.start();
                } else {
                    Toast.makeText(MainActivity.this, "请先创建数据库！", Toast.LENGTH_SHORT).show();
                }
            }
        });

        // execSQL删除
        Button btnExecSqlDelete = (Button)findViewById(R.id.btnExecSqlDelete);
        btnExecSqlDelete.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                if (mDbHelper != null) {
                    mDialog = ProgressDialog.show(MainActivity.this, "execSQL删除", "正在删除1000条记录，请稍等……", true);
                    new Thread() { // 开启线程执行防止阻塞
                        @Override
                        public void run() {
                            SQLiteDatabase db = mDbHelper.getWritableDatabase();
                            try {
                                long startms = System.currentTimeMillis();
                                db.execSQL("DELETE FROM student WHERE id IN (SELECT id FROM student ORDER BY id ASC LIMIT 0,1000)");
                                long endms = System.currentTimeMillis();
                                int seconds = (int)((endms - startms)/1000);
                                int ms = (int)((endms - startms)%1000);

                                Message msg = new Message();
                                msg.what = 31;
                                // 使用bundle对象来传递数据
                                Bundle b = new Bundle();
                                if(seconds > 0) {
                                    b.putInt("seconds", seconds);
                                }
                                b.putInt("ms", ms);
                                msg.setData(b);
                                mHandler.sendMessage(msg);
                            } catch(Exception e) {
                                e.printStackTrace();
                            } finally {
                                db.close(); // 关闭数据库
                            }
                        }
                    }.start();
                }else {
                    Toast.makeText(MainActivity.this, "请先创建数据库！", Toast.LENGTH_SHORT).show();
                }
            }

        });

        mTvInfo = (TextView)findViewById(R.id.tvInfo);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }

    /**
     * 获取系统时间
     * @return
     */
    public static String getDate(){
        Calendar ca = Calendar.getInstance();
        int year = ca.get(Calendar.YEAR);           // 获取年份
        int month = ca.get(Calendar.MONTH);         // 获取月份
        int day = ca.get(Calendar.DATE);            // 获取日
        int minute = ca.get(Calendar.MINUTE);       // 分
        int hour = ca.get(Calendar.HOUR);           // 小时
        int second = ca.get(Calendar.SECOND);       // 秒
        int millisecond = ca.get(Calendar.MILLISECOND); // 毫秒

        String date = year + "/" + (month + 1 )+ "/" + day + " "+ hour + ":" + minute + ":" + second + ":" + millisecond;

        return date;
    }
}

执行效果图：

 

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