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yingxiangshujukujianliguanjianjishu
- 主要介绍影像数据库建立中的若干关键技术,分析和讨论了建立大型遥感影像数据库中需要加以研究和解决的主要问题和若干关键技术, 包括影像数据库的体系结构、扩充的关系数据库、无缝拼接、正射影像图的制作、数据压缩等。-Introduces the image database to establish a number of key technologies, analysis and discussed the establishment of large-scale remote sensing im
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- 分页方案二:(利用ID大于多少和SELECT TOP分页)效率最高,需要拼接SQL语句 分页方案一:(利用Not In和SELECT TOP分页) 效率次之,需要拼接SQL语句-Paging scheme: (using the ID is greater than the number of and SELECT TOP paging), the most efficient stitching SQL statements paging scheme: (Not In SELECT
WhereList
- 自由拼接SQL查询WHERE条件 比如对于where name = maxwell and age <18-The free stitching SQL query WHERE condition such as for the where name = ' maxwell' and age < 18
sql
- 动态SQL语句拼接,多条件查询可选,动态SQL语句拼接,多条件查询可选-Dynamic sql statement stitching, multi-condition optional query