SQLite数据库的增删改查demo

今天学习数据库的增删改查 调用 SQLiteOpenHelper的 getReadableDatabase()或 getWritableDatabase()方法都会返回一个SQLiteDatabase对象， 借助这个对象就可以对数据进行 CRUD 操作了。

/** Automatically generated file. DO NOT MODIFY */
package com.demo.sqlitedatabasedemo;

public final class BuildConfig {
    public final static boolean DEBUG = true;
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件        475  2015-12-25 12:04  SQLiteDatabaseDemo\.classpath

     文件        854  2015-12-25 12:04  SQLiteDatabaseDemo\.project

     文件        897  2015-12-25 12:04  SQLiteDatabaseDemo\AndroidManifest.xml

     文件        897  2015-12-25 12:04  SQLiteDatabaseDemo\bin\AndroidManifest.xml

     文件        363  2015-12-25 14:53  SQLiteDatabaseDemo\bin\classes\com\demo\sqlitedatabasedemo\BuildConfig.class

     文件       5002  2015-12-25 14:58  SQLiteDatabaseDemo\bin\classes\com\demo\sqlitedatabasedemo\MainActivity.class

     文件       2051  2015-12-25 14:53  SQLiteDatabaseDemo\bin\classes\com\demo\sqlitedatabasedemo\MySQLiteOpenHelper.class

     文件        367  2015-12-25 14:53  SQLiteDatabaseDemo\bin\classes\com\demo\sqlitedatabasedemo\R$attr.class

     文件        488  2015-12-25 14:53  SQLiteDatabaseDemo\bin\classes\com\demo\sqlitedatabasedemo\R$dimen.class

     文件        434  2015-12-25 14:53  SQLiteDatabaseDemo\bin\classes\com\demo\sqlitedatabasedemo\R$drawable.class

     文件        632  2015-12-25 14:53  SQLiteDatabaseDemo\bin\classes\com\demo\sqlitedatabasedemo\R$id.class

     文件        430  2015-12-25 14:53  SQLiteDatabaseDemo\bin\classes\com\demo\sqlitedatabasedemo\R$layout.class

     文件        415  2015-12-25 14:53  SQLiteDatabaseDemo\bin\classes\com\demo\sqlitedatabasedemo\R$menu.class

     文件        499  2015-12-25 14:53  SQLiteDatabaseDemo\bin\classes\com\demo\sqlitedatabasedemo\R$string.class

     文件        458  2015-12-25 14:53  SQLiteDatabaseDemo\bin\classes\com\demo\sqlitedatabasedemo\R$style.class

     文件        763  2015-12-25 14:53  SQLiteDatabaseDemo\bin\classes\com\demo\sqlitedatabasedemo\R.class

     文件     697716  2015-12-25 14:58  SQLiteDatabaseDemo\bin\classes.dex

     文件     234431  2015-12-25 13:25  SQLiteDatabaseDemo\bin\dexedLibs\android-support-v4-63e144ff60b91a918ddbd85c25057b5f.jar

     文件        120  2015-12-25 14:54  SQLiteDatabaseDemo\bin\jarlist.cache

     文件       5964  2015-12-25 13:25  SQLiteDatabaseDemo\bin\res\crunch\drawable-hdpi\ic_launcher.png

     文件       3112  2015-12-25 13:25  SQLiteDatabaseDemo\bin\res\crunch\drawable-mdpi\ic_launcher.png

     文件       9355  2015-12-25 13:25  SQLiteDatabaseDemo\bin\res\crunch\drawable-xhdpi\ic_launcher.png

     文件      17889  2015-12-25 13:25  SQLiteDatabaseDemo\bin\res\crunch\drawable-xxhdpi\ic_launcher.png

     文件      41341  2015-12-25 14:50  SQLiteDatabaseDemo\bin\resources.ap_

     文件     281658  2015-12-25 14:58  SQLiteDatabaseDemo\bin\SQLiteDatabaseDemo.apk

     文件        169  2015-12-25 12:04  SQLiteDatabaseDemo\gen\com\demo\sqlitedatabasedemo\BuildConfig.java

     文件       2952  2015-12-25 14:53  SQLiteDatabaseDemo\gen\com\demo\sqlitedatabasedemo\R.java

     文件      51394  2015-12-25 12:04  SQLiteDatabaseDemo\ic_launcher-web.png

     文件     627582  2015-12-25 12:04  SQLiteDatabaseDemo\libs\android-support-v4.jar

     文件        781  2015-12-25 12:04  SQLiteDatabaseDemo\proguard-project.txt

............此处省略53个文件信息