Using the Bulk Import and Export Utilities,
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6 Using the Bulk Import and Export Utilities

Often developers or system administrators want to import a large amount of data from files or export a large amount of data to files. Instead of having to use INSERT and SELECT statements, you can use utilities that Cloudscape provides to import data directly from files into tables and to export data from tables into files.

Bulk import is available in slow and fast modes. In slow mode, bulk import does not work much faster than a series of insert statements, but it provides the convenience of allowing you to work with files that are produced or read by other applications, such as spreadsheets or other desktop databases.

In fast mode, bulk import works much faster than a series of insert statements because Cloudscape minimizes logging and makes some under-the-covers performance enhancements. Fast mode is available in specific circumstances; see “Requirements for Fast Mode”.

Both slow- and fast-mode bulk import are transactional. If an error occurs during bulk import, all the changes made are rolled back.

NEW: In Version 3.0, you can import data into a table to replace existing data in fast mode.

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