Estimating pages that smart large objects occupy

In your estimate of the space required for a table, you should also consider the amount of sbspace storage for any smart large objects (such as CLOB, BLOB, or multi-representative data types) that are part of the table. An sbspace contains user-data areas and metadata areas.

CLOB and BLOB data is stored in sbpages that reside in the user-data area. The metadata area contains the smart-large-object attributes, such as average size and whether or not the smart large object is logged. For more information about sbspaces, see your IBM® Informix® Administrator's Guide.

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