TO_NUMBER

Bridging an existing gap between mathematics and programming, Elementary Number Theory with Programming provides a unique introduction to elementary number theory with fundamental coverage of computer programming. Written by highly-qualified experts in the fields of computer science and mathematics, the book features accessible coverage for readers with various levels of experience and explores number theory in the context of programming without relying on advanced prerequisite knowledge and concepts in either area. Elementary Number Theory with Programming features comprehensive coverage of the methodology and applications of the most well-known theorems, problems, and concepts in number theory. Using standard mathematical applications within the programming field, the book presents modular arithmetic and prime decomposition, which are the basis of the public-private key system of cryptography.

使用Lehmer随机数生成器算法生成随机数的函数。语法：[x]=lrng(n,g,seed)。

oracle分析函数row_number() over()的应用示例，附带查询结果截图，有助于理解代码和数据。这一函数在数据库查询中扮演着重要角色，通过分析和排序数据集，提供了灵活的数据管理解决方案。

ROW_NUMBER()函数在Oracle中用于对查询结果进行排序和编号，通过指定分区列和排序列，可以精确地控制数据的排列顺序。该函数为每行数据分配一个唯一的序号，便于后续分析和处理。在数据库查询优化中，合理使用ROW_NUMBER()函数可以显著提升查询效率和结果准确性。