Supported ODBC Data Types

The TDV ODBC driver supports and maps the following data types.

Supported Data Type	Data Type is Mapped To
CHAR, VARCHAR	VARCHAR
BIT, TINYINT, SMALLINT	SMALLINT
BIGINT, INT	INT
DECIMAL, REAL, FLOAT, NUMERIC	FLOAT
SHORT, LONG, DOUBLE, TIME, DATE, TIMESTAMP	VARCHAR

Data Types of Unknown Length

The TDV ODBC driver supports retrieval of parameters with values longer than 255 characters if the client provides adequate memory for the task.

If the parameter is a wildcard of unknown length, the parameter is defined with a data type of VARCHAR (255). SQL parameters of a given length submitted in a prepared statement are assigned a data type of CHAR with the actual character length of the parameter submitted.