Does Shrink And Move Both Adjust The High Water Mark

Nov 4, 2013

I am trying to discern the difference between Shrink and Move and their impact on the High Water Mark of a table. 

My understanding is that MOVE in effect rewrites every row of a table ( hence why it can deal with row chaining ) whereas SHRINK basically moves existing rows in a table 'down' the table into any available free space. This is why MOVE takes a table lock whereas SHRINK takes a row lock. What I am trying to discern is - does MOVE and SHRINK effect the high water mark and does both reallocate space and give it back to free space for the tablespace ? I believe MOVE does reduce the HWM and give freed space back to the tablespace. I am not so sure about SHRINK. 

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*
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[code]...

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