blank column meaning in English
空白列
Examples
- These are varchar no trailing blanks and numeric string . use the varchar no trailing blanks column option to identify a nickname column that contains no trailing blanks
使用varchar _ no _ trailing _ blanks列选项来标识不包含结尾空白的昵称列。 - For example , you may find that a lookup in a reference table fails , and to correct this you may want to add a transformation that provides default data for blank columns
例如，您可能发现引用表中的查找失败，而为更正此问题，可以添加一个为空列提供默认数据的转换。 - Setting the varchar no trailing blanks column option generally improves performance , because it allows more operations to be pushed down and more optimization of the remote sql statements to encourage index access
通过设置varchar _ no _ trailing _ blanks列选项通常可以提高性能，因为它允许下推更多的操作，以及对远程sql语句的更多优化，以鼓励索引访问。