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       jTDS native type mapping Below is the mapping between native SQL types and java objects. 
| Native type | Java Object | JDBC Type | Comment |  
| Numeric types |  
| tinyint | java.lang.Integer | TINYINT |  |  
| smallint | java.lang.Integer | SMALLINT |  |  
| unsigned smallint | java.lang.Integer | INTEGER | Sybase only |  
| int | java.lang.Integer | INTEGER |  |  
| unsigned int | java.lang.Integer | BIGINT | Sybase only |  
| bigint | java.lang.Long | BIGINT | SQL 2000/Sybase 15+ |  
| unsigned bigint | java.math.BigDecimal | DECIMAL | Sybase only |  
| numeric | java.math.BigDecimal | NUMERIC |  |  
| decimal | java.math.BigDecimal | DECIMAL |  |  
| smallmoney | java.math.BigDecimal | DECIMAL |  |  
| money | java.math.BigDecimal | DECIMAL |  |  
| real | java.lang.Float | REAL |  |  
| float | java.lang.Double | DOUBLE |  |  
| Logical type |  
| bit | java.lang.Boolean | BIT |  |  
| Character types |  
| char | java.lang.String | CHAR |  |  
| varchar | java.lang.String | VARCHAR |  |  
| nchar | java.lang.String | CHAR |  |  
| nvarchar | java.lang.String | VARCHAR |  |  
| unichar | java.lang.String | CHAR | Sybase only |  
| univarchar | java.lang.String | VARCHAR | Sybase only |  
| text | java.sql.Clob | CLOB |  |  
| ntext | java.sql.Clob | CLOB | Microsoft only |  
| unitext | java.sql.Clob | CLOB | Sybase only |  
| Binary types |  
| binary | byte[] | BINARY |  |  
| varbinary | byte[] | VARBINARY |  |  
| image | java.sql.Blob | BLOB |  |  
| Datetime types |  
| smalldatetime | java.sql.Timestamp | TIMESTAMP |  |  
| datetime | java.sql.Timestamp | TIMESTAMP |  |  
| date | java.sql.Date | DATE | Sybase only |  
| time | java.sql.Time | TIME | Sybase only |  
| Other types |  
| uniqueidentifier | java.lang.String | VARCHAR | Microsoft only |  
| sql_variant | java.lang.String | VARCHAR | MS only TDS7 |  
| sql_variant | Depends on value | OTHER | MS only TDS8 |  |