Attribute is intended to be either " true " or " false . " unfortunately , jaxb failed to pick up on this and use a boolean data type - instead , the 属性的值应该是“ true ”或“ false ” 。不幸的是, jaxb没有发现这一点并使用布尔数据类型,
Db2 udb does not have native support for bit or boolean data types , neither for bitwise operation nor for boolean algebra operations Db2 udb没有为位数据类型或布尔数据类型提供本机支持,它既不支持逐位操作,也不支持布尔代数操作。
However , conventional soms handle only numerical data , categorical data has to be converted to boolean data resulting in unable to disclosure the similarity among the high - dimensional data 然而,传统自组映射图只能处理数值型资料,种类型资料必须透过编码转换成一群二元数值型态资料,因而无法反映种类型资料值之间的相似程度。
If you re migrating to ibm db2 universal database from a database that supports bit and boolean operations and functions , you may be wondering how to handle these types and functions in db2 . our author offers a method that includes table creation with columns of the bit - like or boolean data types using constraints or triggers , and a set of user - defined functions to support bitwise and boolean operations that imitate bit or boolean data - type behavior 本文作者提出了一种方法,这个方法中包括使用约束条件或触发器创建的表,表中包含类似于位( bit - like )的数据类型的列或布尔数据类型的列;该方法还包含一组用户定义函数( udf ) ,用于支持模仿位数据或布尔数据类型的行为的逐位运算和布尔运算。
Integration services can automatically suggests the most appropriate data types based on the first 100 rows of data . you can also change these suggestion options to sample more or less data , to specify the default data type for integer or boolean data , or to add spaces as padding to string columns Integration services将根据前100行数据自动建议数据类型,但您可以通过更改建议选项来增加和减少取样数据,指定整数数据或布尔数据的默认数据类型,或添加作为填充量添加到字符串列中的空格。