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Summary: March 29, 2008 ICS 541: Rep. data elements 1
Representing Data Elements
Chapter 12 of GUW
March 29, 2008 ICS 541: Rep. data elements 2
Objectives
To understand:
How SQL data types are represented as fields
How tuples are represented as records
How records are organized in blocks of memory
How to handle variable size records
How to cope with a record when it size changes as a result of
modifying some of its fields
March 29, 2008 ICS 541: Rep. data elements 3
- Lecture outline
Representing SQL data types
Fixed-length Records
Representing Block and Record Addresses
Variable-length Records
Record modifications
Summary
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