w横切 http://www.agildata.com/database-sharding/ When Database Sharding is Appropriate Database Sharding is an excellent fit for many types of business applications, those with general purpose database requirements. It can also be used effectively for…

想在Mac下使用locate时,提醒数据库没创建: WARNING: The locate database (/var/db/locate.database) does not exist. To create the database, run the following command: sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.locate.plist Please be aware that the d…

Applies to: Oracle Server - Enterprise Edition - Version 11.1.0.6 to 11.2.0.4 [Release 11.1 to 11.2]Information in this document applies to any platform.GoalStep by step guide on how to create a physical standby database using RMAN DUPLICATE FROM ACT…

EF Code first 建立数据库时报这个错误 CREATE DATABASE permission denied in database 'master'. 解决方法: 打开 Sql Server Manager Studio,安全 -> 登录 -> 找到用于创建数据库的用户(当前Windows登录用户) -> 右键属性 -> 服务器角色 -> 右边选中 dbcreator 在网站 Web.config 的 System.Web 下加上 <identity imp…

转载自:https://www.mssqltips.com/sqlservertutorial/121/restore-sql-server-database-and-overwrite-existing-database/   Restore SQL Server database and overwrite existing database (RESTORE ... WITH REPLACE) Overview The RESTORE ... WITH REPLACE option all…

<Windows Azure Platform 系列文章目录> 我们在使用关系型数据的时候,有时候希望: - 管理员admin,可以查看到所有的数据 - 普通用户,某些敏感字段,比如信用卡,电子邮件等字段都是屏蔽的 在这种情况下,就可以使用Dynamic Data Masking动态数据掩码,对数据表的某些字段进行屏蔽. 比如我们对用户的信用卡信息.邮箱地址进行屏蔽,可以起到保护用户隐私的作用. 动态数据屏蔽策略: 1.不对其进行屏蔽的SQL用户:一组可以在 SQL 查询结果中获取非屏蔽数据的…

问题 如下: 2017-07-16 08:50:57.436  INFO 13524 --- [           main] c.p.p.web.PointshopWebApplication        : Starting PointshopWebApplication on MSI with PID 13524 (D:\javaProject\com.ppdai.pointshop\pointshop-web\target\classes started by yangliweng…

springboot+jpa使用自定义配置文件连接数据库报错:Cannot determine embedded database driver class for database type NONE 原因:没有配置数据源dataSource,配置文件加载进来了的. 解决办法:在配置类中配置数据源 package com.springboot1.util; import org.apache.tomcat.jdbc.pool.DataSource;import org.springframew…

Caused by: org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the cl…

ref:https://www.journaldev.com/13830/spring-boot-cannot-determine-embedded-database-driver-class-for-database-type-none https://blog.csdn.net/hengyunabc/article/details/78762097 写在前面 这个demo来说明怎么一步步排查一个常见的spring boot AutoConfiguration的错误. https://gith…