mysql5.7 百度雲盤 密碼:gmxd
安裝
1.創建/usr/share/java目錄
mkdir -p /usr/share/java
2.將解壓後的mysql-connector-java-5.1.47.jar放入/usr/share/java目錄下,並更改名稱爲mysql-connector-java.jar
3.卸載mariadb
查看版本
rpm -qa|grep mariadb
卸載,注意與上面版本一致
rpm -e --nodeps mariadb-libs-5.5.64-1.el7_5.x86_64
4.創建 /opt/mysql 目錄,並將解壓mysql-5.7.26-1.el7.x86_64.rpm-bundle.tar後的文件放入該路徑
5.依次執行以下命令
rpm -ivh mysql-community-common-5.7.26-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-5.7.26-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-5.7.26-1.el7.x86_64.rpm
rpm -ivh mysql-community-server-5.7.26-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-compat-5.7.26-1.el7.x86_64.rpm
配置
1.初始化
# 初始化mysql ,root代表當前用戶
mysqld --initialize --user=root
2.開啓服務
systemctl start mysqld.service
如果出現錯誤,請看底部錯誤解決方法。
3.登錄mysql
mysql -uroot –p
如果不能登錄,則設置免密登錄。
先關閉sql服務
systemctl stop mysqld.service
vi /etc/my.cnf
並在末尾加上
skip-grant-tables
保存退出後,再次開啓sql服務
systemctl start mysqld.service
輸入 mysql,則成功免密進入。
4.重置root密碼
mysql> use mysql
mysql> update user set authentication_string=password('123456') where user='root';
記得去 /etc/my.cnf,註釋免密設置。
先重啓服務,然後就可以正常登錄mysql
mysql -uroot -p123456
錯誤
- 如下
warning: mysql-community-libs-5.7.26-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
error: Failed dependencies:
mysql-community-common(x86-64) >= 5.7.9 is needed by mysql-community-libs-5.7.26-1.el7.x86_64
mariadb-libs is obsoleted by mysql-community-libs-5.7.26-1.el7.x86_64
檢查是否卸載mariadb,沒有則從安裝的第三步重新開始。
- 如下
error: Failed dependencies:
/usr/bin/perl is needed by mysql-community-server-5.7.26-1.el7.x86_64
執行以下命令,安裝完成即可:
yum install -y perl-Module-Install.noarch
- 如下
error: Failed dependencies:
net-tools is needed by mysql-community-server-5.7.26-1.el7.x86_64
執行以下命令,安裝完成即可:
yum install net-tools
- 開啓mysql服務,出現
Job for mysqld.service failed because the control process exited with error code. See "systemctl status mysqld.service" and "journalctl -xe" for details.
執行刪除之後
rm -rf /var/lib/mysql
並執行,即可。
systemctl start mysqld.service
5.使用sql命令時,出現如下錯誤:
You must reset your password using ALTER USER statement before executing this statement.
請看 這裏
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