Converting Records to Tuples (cont)
DBMSs typically define a fixed set of field types, e.g.
DATE, FLOAT, INTEGER, NUMBER(n), VARCHAR(n), ...
This determines implementation-level data types:
DATE |
| time_t |
FLOAT |
| float,double |
INTEGER |
| int,long |
NUMBER(n) |
| int[] (?) |
VARCHAR(n) |
| char[] |
|
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