3. Understanding SQL Data Types : SQL Data Types : Binary Data Types : Byte Data Types
 
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Byte Data Types
The byte data type is a fixed length binary data type. If the length of the data assigned to a byte column is less than the declared length of the column, the value is padded with zeros to the declared length when it is stored in a table. The minimum length of a byte column is 1 byte, and the maximum length is limited by the maximum row width configured but not exceeding 32,000.