下表列出了基本 SQL Server、JDBC 和 Java 编程语言数据类型之间的默认映射:
| SQL Server 类型 | JDBC 类型 (java.sql.Types) | Java 语言类型 |
|---|---|---|
| bigint |
BIGINT |
long |
| timestamp binary |
BINARY |
byte[] |
| bit |
BIT |
boolean |
| char |
CHAR |
String |
| decimal money smallmoney |
DECIMAL |
java.math.BigDecimal |
| float |
DOUBLE |
double |
| int |
INTEGER |
int |
| image varbinary(max) |
LONGVARBINARY |
byte[] |
| varchar(max) text |
LONGVARCHAR |
String |
| nchar |
CHAR NCHAR (Java SE 6.0) |
String |
| nvarchar |
VARCHAR NVARCHAR (Java SE 6.0) |
String |
| nvarchar(max) ntext |
LONGVARCHAR LONGNVARCHAR (Java SE 6.0) |
String |
| numeric |
NUMERIC |
java.math.BigDecimal |
| real |
REAL |
float |
| smallint |
SMALLINT |
short |
| datetime smalldatetime |
TIMESTAMP |
java.sql.Timestamp |
| varbinary udt |
VARBINARY |
byte[] |
| varchar |
VARCHAR |
String |
| tinyint |
TINYINT |
short |
| uniqueidentifier |
CHAR |
String |
| xml |
LONGVARCHAR SQLXML (Java SE 6.0) |
String SQLXML |
| time |
TIME (1) |
java.sql.Time (1) |
| date |
DATE |
java.sql.Date |
| datetime2 |
TIMESTAMP |
java.sql.Timestamp |
| datetimeoffset (2) |
microsoft.sql.Types.DATETIMEOFFSET |
microsoft.sql.DateTimeOffset |
