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