SQLiteOpenHelper.WritableDatabase Property
Definition
Important
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Create and/or open a database that will be used for reading and writing.
public virtual Android.Database.Sqlite.SQLiteDatabase? WritableDatabase { [Android.Runtime.Register("getWritableDatabase", "()Landroid/database/sqlite/SQLiteDatabase;", "GetGetWritableDatabaseHandler")] get; }
[<get: Android.Runtime.Register("getWritableDatabase", "()Landroid/database/sqlite/SQLiteDatabase;", "GetGetWritableDatabaseHandler")>]
member this.WritableDatabase : Android.Database.Sqlite.SQLiteDatabase
Property Value
a read/write database object valid until #close
is called
- Attributes
Exceptions
if the database cannot be opened for writing
Remarks
Create and/or open a database that will be used for reading and writing. The first time this is called, the database will be opened and #onCreate
, #onUpgrade
and/or #onOpen
will be called.
Once opened successfully, the database is cached, so you can call this method every time you need to write to the database. (Make sure to call #close
when you no longer need the database.) Errors such as bad permissions or a full disk may cause this method to fail, but future attempts may succeed if the problem is fixed.
<p class="caution">Database upgrade may take a long time, you should not call this method from the application main thread, including from android.content.ContentProvider#onCreate ContentProvider.onCreate()
.
Java documentation for android.database.sqlite.SQLiteOpenHelper.getWritableDatabase()
.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.