有些朋友创建了一个非public的dblink,现在该数据库的其他用户需要去使用该dblink,在正常情况下无访问权限,需要重新建一个dblink,或者将原dblink修改为public.但是由于忘记了原dblink的目标段的密码,使得创建或者修改dblink的步骤无法进行下去.这里通过修改基表(link$),解决该问题. 创建dblink SQL> show user; USER is "SYS" SQL> create database link "xff_d…
［抄题］: Given an array with n integers, your task is to check if it could become non-decreasing by modifying at most 1 element. We define an array is non-decreasing if array[i] <= array[i + 1] holds for every i (1 <= i < n). Example 1: Input: [4,2,…
1.为数据表添加一个新字段 Alter TABLE [dbo].[CustomerBackupConfig] Add [Stamp] [timestamp] NULL GO 2.为数据表添加两个新字段 , GO 3.为数据表删除一个字段 Alter Table [dbo].[tblOrder] Drop Column [CookieID] GO 4.修改数据表一个字段的定义 Alter Table [dbo].[tblOrder] Alter Column [CookieID] int not…
Issue Details I am running the parallel process model or batch model and want my test sockets to be numbered from 1 onwards. Currently my socket number settings are zero based. How do I make this change? Solution In order to change test socket number…
