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12c Online Partitioned Table Reorganisation Part I (Prelude)
First post for 2014 !! Although it’s generally not an overly common activity with Oracle databases, reorganising a table can be somewhat painful, primarily because of the associated locking...
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Empty Leaf Blocks After Rollback Part I (Empty Spaces)
There’s been an interesting recent discussion on the OTN Database forum regarding “Index blank blocks after large update that was rolled back“. Setting aside the odd scenario of updating a column that...
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Empty Leaf Blocks After Rollback Part II (Editions of You)
In my last post, I discussed how both 1/2 empty and totally empty leaf blocks can be generated by rolling back a bulk update operation. An important point I made within the comments of the previous...
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