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In the paging system, a bunch of limit offset is common, they are usually used with the order by, the index is useful for sorting, if there is no index will require a large number of file ordering, but in the Division also encountered a very common problem, such as limit 1000000,10 it's so cheap. Before you lose a lot of data, the cost of this operation is very high, and one of the techniques to improve eff
Added several custom methods for extracting the specified fragment from the MySQL result set, and the reason for not invoking the release is that this involves the original checksum of the program Thanks to the help of the great God on the Internet .... The old system kills people, they can't move backstage. Copy Code code as follows: /* Pagination Class * @author Xiaojiong 290747680@qq.com * @date 2011-08-17 * * Show (2) 1 ... 62 63
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