The IDalCommandParam interface contains properties of parameters of the SQL queries that are used to execute a command at the database server.
| Property name | Brief description | |
| DataDomain | The DataDomain property determines a parameter data type if the parameter is used to transfer multibyte information. | |
| DataType | The DataType property determines a data type of SQL query parameter. | |
| Direction | The Direction property determines a destination of SQL query parameter. | |
| Name | The Name property returns the name of the SQL query parameter that is used to execute the command at the database server. | |
| Size | The Size property determines maximum length of the value that parameter can take. | |
| Value | The Value property determines a value of the SQL query parameter that is used to execute the command at the database server. |
See also: