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Configuring and Monitoring Dynamic Server
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Disk Structures and Storage
In This Chapter
Dbspace Structure and Storage
Structure of the Root Dbspace
Reserved Pages
Structure of a Regular Dbspace
Structure of an Additional Dbspace Chunk
Structure of a Mirror Chunk
Structure of the Chunk Free-List Page
Structure of the Tblspace Tblspace
Tblspace Tblspace Entries
Tblspace Numbers
Tblspace Number Elements
Tblspace Tblspace Size
Tblspace Tblspace Bitmap Page
Structure of the Database Tblspace
Database Tblspace Number
Database Tblspace Entries
Structure and Allocation of an Extent
Extent Structure
Next-Extent Allocation
Structure and Storage of a Dbspace Page
Rows in Nonfragmented Tables
Rows in Fragmented Tables
Recommendations on Use of Rowid
Data-Row Format and Storage
Structure of Fragmented Tables
Attached Indexes
Detached Indexes
Structure of B-Tree Index Pages
Definition of B-Tree Terms
Logical Storage of Indexes
Functional Indexes
Structure of R-Tree Index Pages
Storage of Simple Large Objects
Structure of a Blobspace
Structure of a Dbspace Blobpage
Simple-Large-Object Storage and the Descriptor
Creation of Simple Large Objects
Deletion or Insertion of Simple Large Objects
Size Limits for Simple Large Objects
Blobspace Page Types
Blobspace Free-Map Page
Blobspace Bitmap Page
Blobpage
Structure of a Blobspace Blobpage
Sbspace Structure
Structure of the Metadata Area
Sbpage Structure
Multiple Chunk Sbspace
Time Stamps
Database and Table Creation: What Happens on Disk
Database Creation
Disk-Space Allocation for System Catalog Tables
Tracking of System Catalog Tables
Table Creation
Disk-Space Allocation
Entry in the Tblspace Tblspace
Entries in the System Catalog Tables
Creation of a Temporary Table
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