IngresParameter Class
The IngresParameter class represents a parameter for an IngresCommand for each question mark (?) placeholder in the command and, optionally, its mapping to a DataSet column.
The IngresParameter constructor determines the data type of the parameter in the following ways:
• The constructor specifies an IngresType enumeration
• The constructor specifies a System.DbType enumeration
• Through the .NET Framework System.Type of the Value object if no specific data type is in the constructor