An import file is an input file that is used primarily for writing new data to the Teradata Database. BTEQ transfers the import file data to the Teradata Database in response to the USING modifier in a Teradata SQL request.
The following table explain how to specify an import file:
|System Type||Import File|
|Mainframe-attached||Use a z/OS DD statement to define an import file, then execute a BTEQ IMPORT command to open the file before entering an SQL request.|
|Workstation-attached||Import files do not have to be defined, but the IMPORT command must be used to open an import file before submitting an SQL request.|