| ExecuteScalarAsync(DbCommand, String, CancellationToken, Object) | Executes the SQL statement using DbCommand, and returns the value in the first column of the first row in the result set. |
| ExecuteScalarAsync(DbConnection, String, CancellationToken, Object) | Executes the SQL statement using DbConnection, and returns the value in the first column of the first row in the result set. |
| ExecuteScalarAsync(DbCommand, Int32, String, CancellationToken, Object) | Executes the SQL statement using DbCommand, and returns the value in the first column of the first row in the result set. |
| ExecuteScalarAsync(DbConnection, Int32, String, CancellationToken, Object) | Executes the SQL statement using DbConnection, and returns the value in the first column of the first row in the result set. |