mariadb

Python Module Mysql-connector Does Not See New Changes

由 眉间皱痕 提交于 2021-02-11 12:29:41
问题 I use mysql.connector to fetch rows in a python script but when I update a table the I don't see the changes. My code is: import mysql.connector database = mysql.connector.connect(host='localhost', user='root', passwd='password', database='my_db') cursor = database.cursor() cursor.execute('SELECT * FROM my_table') print(cursor.fetchall()) cursor.execute('SELECT * FROM my_table') print(cursor.fetchall()) In first time it reads the correct values but at the second time it reads the same values

Bug in integrate MySQL function JSON_SEARCH

由 生来就可爱ヽ(ⅴ＜●) 提交于 2021-02-11 12:29:15
问题 how i use MySQL function JSON_SEARCH on all values, not only on strings? All this bug is documented on MySQL emulator: https://www.db-fiddle.com/f/2UdrxqrQ3DeonbKWw3pVVp/0 I have DDL: CREATE TABLE table_name ( id int NOT NULL AUTO_INCREMENT, json_config JSON, PRIMARY KEY (id) ); INSERT INTO table_name (id,json_config) VALUES (NULL, '{ "_id": "60111111111111175b78fe2fa", "intestx": 0, "codes": [ 48348, 28923, 39080 ], "test": 562222222222456 }'); Query #1: SELECT JSON_SEARCH(json_config, 'all'

Bug in integrate MySQL function JSON_SEARCH

由 此生再无相见时 提交于 2021-02-11 12:26:22
问题 how i use MySQL function JSON_SEARCH on all values, not only on strings? All this bug is documented on MySQL emulator: https://www.db-fiddle.com/f/2UdrxqrQ3DeonbKWw3pVVp/0 I have DDL: CREATE TABLE table_name ( id int NOT NULL AUTO_INCREMENT, json_config JSON, PRIMARY KEY (id) ); INSERT INTO table_name (id,json_config) VALUES (NULL, '{ "_id": "60111111111111175b78fe2fa", "intestx": 0, "codes": [ 48348, 28923, 39080 ], "test": 562222222222456 }'); Query #1: SELECT JSON_SEARCH(json_config, 'all'

Should I turn off Query Cache in MySQL?

由 核能气质少年 提交于 2021-02-10 15:12:59
问题 I'm using a dedicated server with 32GB RAM and an 8-core server, using Maria DB 10.1 and most tables are InnoDB. Total DB size is less than 2GB but I think performance is slow. The following is the my.cnf file I'm using: [mysqld] log-error=/home/MySQL_Server/mysql/dedi.server.co.err datadir=/home/MySQL_Server/mysql pid-file=/home/MySQL_Server/mysqlmysqld.pid innodb_file_per_table=1 skip-name-resolve=1 bind-address=127.0.0.1 #skip-networking=1 #query_cache_type=0 query_cache_type=1 innodb_file

Error Code 1064 in Workbench 8.0 from forward engineered EERD

由 蹲街弑〆低调 提交于 2021-02-10 14:56:11
问题 I get the following error from my forward engineered database: Error Code: 1064. You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ' CONSTRAINT fk_Employees_EmployeeTitle1 FOREIGN KEY (`EmployeeTitle_EmpT' at line 9 The code looks good to me and I have no idea where to go from here to make it work. The code is as follows: -- MySQL Workbench Forward Engineering SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE

Error Code 1064 in Workbench 8.0 from forward engineered EERD

由 不想你离开。 提交于 2021-02-10 14:55:10
问题 I get the following error from my forward engineered database: Error Code: 1064. You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ' CONSTRAINT fk_Employees_EmployeeTitle1 FOREIGN KEY (`EmployeeTitle_EmpT' at line 9 The code looks good to me and I have no idea where to go from here to make it work. The code is as follows: -- MySQL Workbench Forward Engineering SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE

2018年终盘点：阿里云数据库RDS核心能力演进

由 空扰寡人 提交于 2021-02-10 08:56:13
摘要： 2018年云数据库RDS发展上，不但针对MySQL、SQL Server、PostgreSQL提供了适合个人入门用户的基础版产品，以实惠的价格普惠广大中小用户。更加入最新的MariaDB TX企业版，及大幅度提高PPAS的Oracle兼容性，从企业需求出发，重点在全生命周期、全链路安全、全链路监控、全方位运维、多引擎覆盖 5个方面进行发力，为企业用户提供更优质的云数据库服务。 云计算已经进入普及期，不少企业开始从自建数据中心转向云计算。在云计算资源的使用上，从最开始只是使用IaaS层基础资源，转向使用包括云数据库在内的各类PaaS资源。数据库是企业IT架构的核心部分，RDS关系型数据库服务已经成为企业重度依赖的云服务。 过去7年的持续发展，2018年阿里云首次进入Gartner的数据库魔力象限，能够入选Gartner，这是中国数据库厂商的一次突破。阿里云入围Gartner充分说明，在新一波技术浪潮之上进行创新，才可能做出突破。云数据库已经不仅仅是简单地完成数据库在云资源中的搭建，数据库曾经是IT系统中最昂贵的投入之一。对企业CXO们（CEO、CFO、CTO、CIO等）而言，更加灵活的生命周期管理，可以实现成本的合理投入及灵活管理。对DBA技术人员而言，更高的安全性、更全面的监控能力、更便捷的运维方式，将改变DBA在企业的工作模式及地位。 从企业管理者及DBA的角度

Unable to Field identify bean named 'entityManagerFactory' as using Auto-wiring annotation to Repository

由 折月煮酒 提交于 2021-02-10 06:18:28
问题 Error APPLICATION FAILED TO START Description: Field ProRepo in com.pvs.products.testservice.ProService required a bean named 'entityManagerFactory' that could not be found. The injection point has the following annotations: @org.springframework.beans.factory.annotation.Autowired(required=true) Action: Consider defining a bean named 'entityManagerFactory' in your configuration. Code build.gradle plugins { id 'org.springframework.boot' version '2.1.12.RELEASE' id 'io.spring.dependency

Switch from JsonStringType to JsonBinaryType when the project uses both MySQL and PostgreSQL

由 青春壹個敷衍的年華 提交于 2021-02-09 08:26:09
问题 I have a problem with column json when it's necessary to switching from PostgreSQL to MariaDB/MySql. I use Spring Boot + JPA + Hibernate + hibernate-types-52. The table i want to map is like this: CREATE TABLE atable( ... acolumn JSON, ... ); Ok it works for PostgreSQL and MariaDB/MySql. The problem is when i want to deploy an application that switch easly from one to another because the correct hibernate-types-52 implementation for PostgreSQL and MySQL/MariaDB are different This works on

centos7 yum 安装 mysql

由 穿精又带淫゛_ 提交于 2021-02-08 15:55:45
centos7 yum 安装mysql 介绍在CentOS7上yum安装数据库服务器MySQL Community Server 5.7的方法。 准备 CentOS7默认安装了和MySQL有兼容性的MariaDB数据库，在我们安装MySQL5.7之前为了避免发生冲突首先删除MariaDB。 # rpm -qa | grep maria mariadb-libs-5.5.50-1.el7_2.x86_64 # yum remove mariadb-libs -y 添加MySQL的yum源 在CentOS7上yum安装MySQL需使用 MySQL的yum源 。执行以下命令首先添加MySQL的yum源。 # yum localinstall http://dev.mysql.com/get/mysql57-community-release-el7-7.noarch.rpm 添加MySQL的yum源之后可以使用 yum info命令 搜索mysql-community-server，确认详细的信息。 # yum info mysql-community-server Available Packages Name : mysql-community-server Arch : x86_64 Version : 5.7.14 Release : 1.el7 Size : 152 M
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