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  2. MIDRANGE-L
  3. June 2017

BLOB size

How does IBMi store BLOB column data internally?

When we right click on a file and look at the properties on the file in Navigator it says it is 98GB in size. Which is basically the BLOB column MAXIMUM size * number of records.

Now, most of blob data is vastly smaller than the 10MB maximum limit we placed on the blob column on the file.

Why is Navigator reporting the maximum size to us and inflating the size of the actual data store within the table?

Even DSPFFD is inflating the size of the file.

Or does IBMi truly take 10MB of disk space if the file byte data entered into the blob column is only say 70KB when you specify a max BLOB size of 10MB for that column?

Matt

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