As was explained before, the DB2 optimizer is not fully aware of all the details of the spatial grid index.
前面我们解释过，DB 2优化器不完全知道空间网格索引的细节。
The Generate button will prepare and execute the SQL statement, and place the resulting data in a grid (on the Data Grid tab) or in individual data-aware controls (in the Data Controls tab).
Generate按钮将准备并执行SQL语句，将由此产生的数据放入一个窗格中（在DataGrid选项卡上），或者放入单独的数据感知控件中（在DataControls 选项卡中）。
The Generate button will prepare and execute the SQL statement, and place the resulting data in a grid (on the Data Grid tab) or in individual data-aware controls (in the Data Controls tab).
Generate按钮将准备并执行SQL语句，将由此产生的数据放入一个窗格中（在DataGrid选项卡上），或者放入单独的数据感知控件中（在DataControls 选项卡中）。
应用推荐