Converting Records to Tuples
A Record is an array of bytes (byte[])
- representing the data values from a typed
Tuple
A Tuple is a collection of named,typed values
- analogous to a
struct in C
Information on how to interpret the bytes as typed values
- will be contained in schema data in DBMS catalogue
- may be stored in the header for the data file
- may be stored partly in the record and partly in the schema
For variable-length records, some formatting info ...
- must be stored in the record or in the page directory
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