• Rowsize > 8060 bytes ?

    -table size is still limited by fixed-length types, as well as internal headers and row pointers.

    -You cannot create a table with a row size of greater than 8060 bytes if that table is comprised of e.g. all numeric columns.

    row overflow:

    -If a row exceed 8060 bytes, the data for varying columns (VARCHAR, NVARCHAR, or VARBINARY) will be automatically moved off-row into the large object area.

    In addition, each column that is moved off-row will occupy a 24-byte on-row pointer. Make sure when creating large tables that the pointers will not cause rows to overflow the 8060-byte limit, or data modifications may be terminated as a result of too much data in row.

    If you have off-row columns, you may end up with vast IO overhead.

    (One to read the pointer, the second to read the off-row column)

    Johan

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