sqlitedatabase query example

Android provides a class named SQLiteDatabase, which encapsulates APIs for database operations. This class can be used to Create, query, and Update data) and Delete operations (CRUD ). For SQLiteDatabase learning, we should master the execSQL () and

Android-use SQLiteDatabase to operate SQLite DatabasesIn addition to using files or SharedPreferences to store data, you can also choose to use the SQLite database to store data. On the Android platform, an embedded relational database-SQLite is

Sqliteopenhelper is a help class for sqlitedatabse to manage data creation and version updates. The general usage is to define a class that inherits sqliteopenhelper and implement two callback Methods: oncreate (sqlitedatabase dB) and onupgrade

The SQLite database is a built-in database of Android, small and powerful enough to work with most SQL statements, while SQLite databases are just files. Although SQLite is a bit much, but not as powerful as the PC-side MySQL, and the Android system

After learning the basic knowledge of the Sqlite database today, I will record what I learned for later reference. The following is my summary of the Sqlite database:1. Sqlite IntroductionSqlite is a lightweight database that is contained in a

First, Sqliteopenhelper classAndroid provides class Sqliteopenhelper to help users simplify operations on the SQLite database. The class is an abstract class that must be implemented by the user themselves and overridden by the OnCreate () and

1. Insert a record using the Insert methodThe Sqlitedatabase Insert method is signed with a long insert (String table,string nullcolumnhack,contentvalues values), and the parameters of the Insert method are described below:Table: Represents the

It took a little time today to summarize the knowledge of the data. The database Sqlitedatabase database in Android, which operates more than the ormlite database (third-party) trouble points, But I am familiar with this kind of database operation,

The compact SQLite database used by the data store in Android.In order to facilitate the Java layer to use sqlite,android do a lot of encapsulation. Provides classes and APIs for some columns. This article exposes the class diagram relationships

1. Insert a record using the Insert methodThe Sqlitedatabase Insert method is signed with a long insert (String table,string nullcolumnhack,contentvalues values), and the parameters of the Insert method are described below:Table: Represents the