这种比较是很有趣的,因为对于当今相当多的XML应用程序来说,clob列是XML存储最常用的选择。
This comparison is interesting because for a certain class of today's XML applications, CLOB columns are a commonly choice for XML storage.
您可以利用DB2 9.5 中的多列统计信息的扩展用途来为优化器提供更多的信息,从而使优化器更好地估计基数,选择最佳的查询访问计划。
You can leverage the extended use of multi-column statistics in DB2 9.5 to provide the optimizer more information to better estimate the cardinality in order to choose an optimal query access plan.
ListView一个小部件,允许用户从一个项目集合中选择一个或多个项目,项目集合可以显示为具有多种样式的多列格式。
ListView a widget that allows users to select one or more items from a collection of items that can be displayed in a multi-column format with different styles.
如果要选择多列,在单击其他列的行选择器时按住ctrl键。
If you want to select multiple columns, hold down the CTRL key while you click the row selectors for the other columns.
如果要选择多列,在单击其他列的行选择器时按住ctrl键。
If you want to select multiple columns, hold down the CTRL key while you click the row selectors for the other columns.
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