原文地址:http://blog.itpub.net/20801486/viewspace-695651/ 今天被开发人员告知在应用用户下无法查询自己创建的sequence的nextval值.当执行select * from test.nextval时提示“ERROR at line 1:ORA-02289: sequence does not exist”.于是我通过select sequence_name from user_sequences来判断该序列确实存在.于是我询问开发人员创建se…

select * from user_sequences where sequence_name = 'NLDP_LGIR_BASE_SEQUENCE'; 通过该指令查看SEQUENCE是否存在…

1570: Sequence Number 时间限制: 1 Sec  内存限制: 1280 MB 题目描述 In Linear algebra, we have learned the definition of inversion number: Assuming A is a ordered set with n numbers ( n > 1 ) which are different from each other. If exist positive integers i , j, (…

G. Sequence Number In Linear algebra, we have learned the definition of inversion number: Assuming A is a ordered set with n numbers ( n > 1 ) which are different from each other. If exist positive integers i , j, ( 1 ≤ i < j ≤ n and A[i] > A[j])…

场景 在使用JPA连接Mysql数据库进行数据持久化时提示: Table 'jpa.sequence' dosen't exist 注: 博客主页: https://blog.csdn.net/badao_liumang_qizhi 关注公众号 霸道的程序猿获取编程相关电子书.教程推送与免费下载. 实现 此时只在MySql中新建了一个数据库jpa,并没有建表.并且在实体类中配置的主键的策略为 private Integer id; private String lastName; private…

前言 本文将基于以下三种关系型数据库,对 sequence (序列) 展开讨论. Oracle - 应用最广泛的商用关系型数据库 PostgreSQL - 功能最强大的开源关系型数据库 MySQL - 应用最广泛的开源关系型数据库 sequence 适用场景 主键 用于整型主键数据的生成,一般一个 sequence 仅用于一张表的主键.这是最常用的用途. 本文讨论的主要是此用途. 非主键 只使用 sequence 本身自增的功能,可多表共用一个 sequence,或整个数据库共用一个 seque…

登入oraclesqlplus / as sysdba启动oraclestartup停止oracleshutdown 创建新用户create user username identified by password;创建表空间create tablespace tablespacename datafile '/mnt/nfs/oracle_db/test.dbf'size 50m;给用户指定默认表空间alter user username default  tablespace  tables…

You are given a string q. A sequence of k strings s1, s2, ..., sk is called beautiful, if the concatenation of these strings is string q (formally, s1 + s2 + ... + sk = q) and the first characters of these strings are distinct. Find any beautiful seq…

Description Once, in one kingdom, there was a queen and that queen was expecting a baby. The queen prayed: ``If my child was a son and if only he was a sound king.'' After nine months her child was born, and indeed, she gave birth to a nice son. Unfo…

Description Once, in one kingdom, there was a queen and that queen was expecting a baby. The queen prayed: ``If my child was a son and if only he was a sound king.'' After nine months her child was born, and indeed, she gave birth to a nice son. Unfo…