MySQL类型与Java类型对应表

比眉伴天荒 2021-09-17 21:54 442阅读 0赞

MYSQL类型与JAVA类型对应表：

<table> 
 <tbody> 
  <tr> 
   <td>类型名称</td> 
   <td>显示长度</td> 
   <td>数据库类型</td> 
   <td>JAVA类型</td> 
   <td>JDBC类型索引(int)</td> 
  </tr> 
  <tr> 
   <td>VARCHAR</td> 
   <td>L+N</td> 
   <td>VARCHAR</td> 
   <td>java.lang.String</td> 
   <td>12</td> 
  </tr> 
  <tr> 
   <td>CHAR</td> 
   <td>N</td> 
   <td>CHAR</td> 
   <td>java.lang.String</td> 
   <td>1</td> 
  </tr> 
  <tr> 
   <td>BLOB</td> 
   <td>L+N</td> 
   <td>BLOB</td> 
   <td>java.lang.byte[]</td> 
   <td>-4</td> 
  </tr> 
  <tr> 
   <td>TEXT</td> 
   <td>65535</td> 
   <td>VARCHAR</td> 
   <td>java.lang.String</td> 
   <td>-1</td> 
  </tr> 
  <tr> 
   <td>&nbsp;</td> 
   <td>&nbsp;</td> 
   <td>&nbsp;</td> 
   <td>&nbsp;</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td>INTEGER</td> 
   <td>4</td> 
   <td>INTEGER UNSIGNED</td> 
   <td>java.lang.Long</td> 
   <td>4</td> 
  </tr> 
  <tr> 
   <td>TINYINT</td> 
   <td>3</td> 
   <td>TINYINT UNSIGNED</td> 
   <td>java.lang.Integer</td> 
   <td>-6</td> 
  </tr> 
  <tr> 
   <td>SMALLINT</td> 
   <td>5</td> 
   <td>SMALLINT UNSIGNED</td> 
   <td>java.lang.Integer</td> 
   <td>5</td> 
  </tr> 
  <tr> 
   <td>MEDIUMINT</td> 
   <td>8</td> 
   <td>MEDIUMINT UNSIGNED</td> 
   <td>java.lang.Integer</td> 
   <td>4</td> 
  </tr> 
  <tr> 
   <td>BIT</td> 
   <td>1</td> 
   <td>BIT</td> 
   <td>java.lang.Boolean</td> 
   <td>-7</td> 
  </tr> 
  <tr> 
   <td>BIGINT</td> 
   <td>20</td> 
   <td>BIGINT UNSIGNED</td> 
   <td>java.math.BigInteger</td> 
   <td>-5</td> 
  </tr> 
  <tr> 
   <td>FLOAT</td> 
   <td>4+8</td> 
   <td>FLOAT</td> 
   <td>java.lang.Float</td> 
   <td>7</td> 
  </tr> 
  <tr> 
   <td>DOUBLE</td> 
   <td>22</td> 
   <td>DOUBLE</td> 
   <td>java.lang.Double</td> 
   <td>8</td> 
  </tr> 
  <tr> 
   <td><strong>DECIMAL</strong></td> 
   <td><strong>11</strong></td> 
   <td><strong>DECIMAL</strong></td> 
   <td><strong>java.math.BigDecimal</strong></td> 
   <td><strong>3</strong></td> 
  </tr> 
  <tr> 
   <td>BOOLEAN</td> 
   <td>1</td> 
   <td>同TINYINT</td> 
   <td>&nbsp;</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td>&nbsp;</td> 
   <td>&nbsp;</td> 
   <td>&nbsp;</td> 
   <td>&nbsp;</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td>ID</td> 
   <td>11</td> 
   <td>PK (INTEGER UNSIGNED)</td> 
   <td>java.lang.Long</td> 
   <td>4</td> 
  </tr> 
  <tr> 
   <td>&nbsp;</td> 
   <td>&nbsp;</td> 
   <td>&nbsp;</td> 
   <td>&nbsp;</td> 
   <td>&nbsp;</td> 
  </tr> 
  <tr> 
   <td>DATE</td> 
   <td>10</td> 
   <td>DATE</td> 
   <td>java.sql.Date</td> 
   <td>91</td> 
  </tr> 
  <tr> 
   <td>TIME</td> 
   <td>8</td> 
   <td>TIME</td> 
   <td>java.sql.Time</td> 
   <td>92</td> 
  </tr> 
  <tr> 
   <td>DATETIME</td> 
   <td>19</td> 
   <td>DATETIME</td> 
   <td>java.sql.Timestamp</td> 
   <td>93</td> 
  </tr> 
  <tr> 
   <td>TIMESTAMP</td> 
   <td>19</td> 
   <td>TIMESTAMP</td> 
   <td>java.sql.Timestamp</td> 
   <td>93</td> 
  </tr> 
  <tr> 
   <td>YEAR</td> 
   <td>4</td> 
   <td>YEAR</td> 
   <td>java.sql.Date</td> 
   <td>91</td> 
  </tr> 
 </tbody> 
</table>

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