DevGuru ADO Parameter Object



			OBJECT: Parameter Parameter The ADO Parameter object provides detailed information about a single parameter used in a stored procedure or stored query. Parameters are used to create Parameterized Commands. These are commands that, after they have been initially defined and stored, use parameters to change some detail in the text of the command before it is executed. Each time a Parameter object is created, it is added to a Parameters Collection associated with a specific Command object. The Command object uses the Parameters Collection to pass these parameters in and out of the stored procedures and queries. There are four major types of parameters: input, output, input/output and return. PROPERTIES Attributes Property Returns a long value defining the characteristics of a Parameter object. Syntax: parameterobject. Attributes Direction Property Sets or returns a ParameterDirectionEnum value that defines the type of the Parameter object (input, output, input/output and return). Syntax: parameterobject. Direction Name Property Sets or returns a string that is the name of the Parameter object. Syntax: parameterobject. Name NumericScale Property Sets or returns a byte value that is the number of digits allowed to the right of the decimal point for a numeric Field object. Syntax: parameterobject. NumericScale Precision Property Sets or returns a byte value that is the maximum number of digits allowed in a numeric Field object. Syntax: parameterobject. Precision Size Property Sets or returns a long value that is the maximum size in bytes or characters of a Parameter object. Syntax: parameterobject. Size Type Property Sets or returns a DataTypeEnum value that specifies the data type. Syntax: parameterobject. Type Value Property Sets or returns a variant value that is the value of the Parameter object. Syntax: parameterobject. Value COLLECTIONS Parameters Collection The Parameters Collection is a collection of the Parameter objects associated with a specific Command object. Properties Collection A collection of Property objects. Each Property object contains a provider-specific property. METHODS AppendChunk Method Used to append a large amount (i.e., a large chunk) of text or binary data to a Parameter object. Syntax: parameterobject. AppendChunk (data)