当出现“安卓SQLite数据库错误:无效的表”的错误时,可能是由于以下几个原因:
String tableName = "my_table";
String createTableQuery = "CREATE TABLE " + tableName + "(id INTEGER PRIMARY KEY, name TEXT)";
String tableName = "my_table";
String createTableQuery = "CREATE TABLE IF NOT EXISTS " + tableName + "(id INTEGER PRIMARY KEY, name TEXT)";
int dbVersion = 2;
String tableName = "my_table";
String createTableQuery = "CREATE TABLE " + tableName + "(id INTEGER PRIMARY KEY, name TEXT)";
public class MyDatabaseHelper extends SQLiteOpenHelper {
public MyDatabaseHelper(Context context) {
super(context, "my_database.db", null, dbVersion);
}
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL(createTableQuery);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
if (oldVersion < 2) {
db.execSQL("ALTER TABLE " + tableName + " ADD COLUMN age INTEGER");
}
}
}
context.deleteDatabase("my_database.db");
String tableName = "my_table";
String createTableQuery = "CREATE TABLE " + tableName + "(id INTEGER PRIMARY KEY, name TEXT)";
SQLiteDatabase db = getWritableDatabase();
db.execSQL(createTableQuery);
// 执行其他数据库操作
以上是一些可能导致“安卓SQLite数据库错误:无效的表”的常见问题和解决方法。通过检查表名,确保表不存在,更新数据库版本,删除损坏的数据库文件或调整数据库操作顺序,你应该能够解决这个问题。
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