我在Android中为我的数据库创建新查询时遇到了问题。
(1) table reg_info has no column named user_pass
Error inserting user_pass=qq user_name=aa
android.database.sqlite.SQLiteException: table reg_info has no column named user_pass (code 1): , while compiling: INSERT INTO reg_info(user_pass,user_name) VALUES (?,?)
这是我的DatabaseOperations。
public class DatabaseOperations extends SQLiteOpenHelper {
public static final int database_version = 1;
public String CREATE_QUERY = "CREATE TABLE "
+ TableInfo.TABLE_NAME
+ "("
+ TableInfo.USER_NAME + " TEXT,"
+ TableInfo.USER_PASS + " TEXT"
+ ");";
public DatabaseOperations(Context context) {
super(context, TableInfo.DATABASE_NAME, null, database_version);
// TODO Auto-generated constructor stub
Log.d("Database operations", "Database created");
}
@Override
public void onCreate(SQLiteDatabase db) {
// TODO Auto-generated method stub
Log.d("peter", CREATE_QUERY);
db.execSQL(CREATE_QUERY);
Log.d("Database operations", "Database created");
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
}
public void putInformation(DatabaseOperations dop, String name, String pass) {
SQLiteDatabase SQ = dop.getWritableDatabase();
ContentValues cv = new ContentValues();
cv.put(TableInfo.USER_NAME, name);
cv.put(TableInfo.USER_PASS, pass);
long k = SQ.insert(TableInfo.TABLE_NAME, null, cv);
Log.d("Database operations", "One row inserted");
}
}
表资料：
public class TableData {
public TableData() {
}
public static abstract class TableInfo implements BaseColumns {
public static final String USER_NAME = "user_name";
public static final String USER_PASS = "user_pass";
public static final String DATABASE_NAME = "user_info";
public static final String TABLE_NAME = "reg_info";
}
}
我的CREATE_QUERY字符串有什么问题？我试图弄清楚好几个小时但到目前为止还没有解决方案！