What are the different SQL timestamp data types?
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What are the different SQL timestamp data types?
In SQL, the main timestamp data types are TIMESTAMP, DATETIME, and DATE. TIMESTAMP includes time zone information.
How do they differ in terms of storage?
TIMESTAMP typically uses 4 bytes, DATETIME uses 8 bytes, and DATE uses 3 bytes. The choice affects precision and range.
Can you give examples of when to use each type?
Use TIMESTAMP for tracking changes with time zones, DATETIME for general date and time, and DATE for just dates.
What about the default values for these types?
TIMESTAMP can default to the current time, while DATETIME and DATE can be set to specific values or NULL.
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