Is there a difference between fill factor 0 and 100

When creating indexes in SQL Server, if you do not specify
an index fill factor, the fill factor will be 0 (effectively the same as 100%).
You can specify an index’s fill factor percentage in a number of different ways.
Some of these methods include: The Create Index statement, DBCC DBReindex and
Rebuild.

ALTER INDEX ALL ON dbo.Data

REBUILD WITH (FILLFACTOR = 90, SORT_IN_TEMPDB = ON,

STATISTICS_NORECOMPUTE = ON)

GO

DBCC DBREINDEX
(Data, ”, 0)

A few caveats:

  • In the create statement you cannot specify 0
    for fill factor.

  • In the DBCC DBReindex statement, if you specify the fill factor
    as zero, this means Reindex the index with the existing index, not 100.

  • You cannot specify 0 for the fill factor in the Rebuild statement.




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