Session.ExecuteScalarAsync Method

Name	Parameters	Description
ExecuteScalarAsync(String, QueryParameterCollection, CancellationToken)	sql, parameters, cancellationToken	Asynchronously executes the specified SQL query and returns the first column of the first row in the result set returned by the query.
ExecuteScalarAsync(String, Object[], CancellationToken)	sql, parameterValues, cancellationToken	Executes the specified SQL query and returns the first column of the first row in the result set returned by the query.
ExecuteScalarAsync(String, String[], QueryParameterCollection, CancellationToken)	sql, parameterNames, parameters, cancellationToken	Asynchronously executes the specified SQL query and returns the first column of the first row in the result set returned by the query.
ExecuteScalarAsync(String, String[], Object[], CancellationToken)	sql, parameterNames, parameterValues, cancellationToken	Asynchronously executes the specified SQL query and returns the first column of the first row in the result set returned by the query.
ExecuteScalarAsync(String, CancellationToken)	sql, cancellationToken	Executes the specified SQL query and returns the first column of the first row in the result set returned by the query.