mysql
MySQL是一个关系型数据库管理系统,由瑞典MySQL AB 公司开发,目前属于 Oracle 旗下产品。MySQL 是最流行的关系型数据库管理系统之一,在 WEB 应用方面,MySQL是最好的 RDBMS (Relational Database Manag...
  • Tag:正常

MySQL 还原:1273 - Unknown collation: 'utf8mb4_0900_ai_ci'

echojava 提问于:2019-01-01

```actionscript[Msg]Decompressing...[Msg]1273-Unknowncollation:'utf8mb40900ai_ci'[Msg]ImportingData...[Msg]Rollingback...[Msg]Finished-Stopp...   阅读全文

回答: 0 人, 浏览: 40 次, Tags: javamysqlsql serveroracle

Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Invalid bean definition with name 'mysqlDataSource' ..factory-bean reference points back to the same bean definition

baibai 提问于:2018-10-17

springboot多数据源出错:MysqlDataSource.java`java/***dataSource*@return*/@Primary@Bean(name="mysqlDataSource")@Qualifier("mysqlDataSource")@Configu...   阅读全文

回答: 1 人, 浏览: 230 次, Tags: springspring bootjavaspring mvcmysql

mysql sum求和空值null 如何转0 ?

loonbs 提问于:2018-08-23

SQL:`sqlselectsum(id)sumfromexamplewhereuser_name='dl'`  阅读全文

回答: 1 人, 浏览: 153 次, Tags: mysqlsql serverjavaoraclepostgresql

[Err] 1442 - Can't update table 'user_account' in stored function/trigger because it is already used by statement which invoked this stored function/trigger.

super_junior 提问于:2018-07-16

mysql更新出错:`sql[Err]1442-Can'tupdatetable'user_account'instoredfunction/triggerbecauseitisalreadyusedbystatementwhichinvokedthisstoredfunctio...   阅读全文

回答: 0 人, 浏览: 52 次, Tags: javaoraclemysql

mysql 创建触发器:[Err] 1419 - You do not have the SUPER privilege and binary logging is enabled ?

helloworld 提问于:2018-07-11

提示如下:`sql[SQL]createtriggertri_testbeforeupdateonts_orderforeachrowsetNEW.updateTime=NOW();[Err]1419-YoudonothavetheSUPERprivilegeandbinaryl...   阅读全文

回答: 1 人, 浏览: 132 次, Tags: mysqlsql serveroraclepostgresql