/// <summary>
/// Represents a column in the select statement.
/// </summary>
/// <param name="arg">Is a COLLATE expression.</param>
public Column(CollateChainer arg)
: this(arg as Chainer)
{
if (CheckNull(Arg(() => arg, arg)))
{
Build = (buildContext, buildArgs) =>
{
var sql = arg.Build(buildContext, buildArgs);
_columnName = ((IColumnName)arg).ColumnName;
return(sql);
};
}
SetArgType(arg);
}
/// <summary>
/// Specifies that the values in the specified column should be sorted in descending order. Null values are treated as the lowest possible values.
/// </summary>
/// <param name="column">Is a column expression of a specified collation on which to sort the query result set.</param>
public static OrderedChainer AsDesc(this CollateChainer column)
{
return(new OrderedChainer(column, SortOrder.Desc));
}
internal ScalarArgument(CollateChainer arg)
: this(arg as Chainer)
{
SetArgType(arg);
}
internal ValueScalarArgument(CollateChainer arg)
: base(arg)
{
}