每个数据库都有账号密码,连接特定的数据库需要对应的账号密码,这个很容易理解,PHP里的mysqli_connect你们也用的多了。主机上的MYSQL可以有很多个数据库,这个MYSQL有一个root账户,这个账户可以随意操作其他数据库账户的权限。“information_schema”这个数据库需要比较大的权限才能修改,不然只能只读。root账户自然是可以操作...
GRANT CREATE USER ON *.* TO 'bootstrapuser'@'%' WITH GRANT OPTION; GRANT SELECT, INSERT, UPDATE, DELETE, EXECUTE ON mysql_innodb_cluster_metadata.* TO 'bootstrapuser'@'%'; GRANT SELECT ON mysql.user TO 'bootstrapuser'@'%'; GRANT SELECT ON performance_schema.replication_group_members ...
MySQL 5.6内存占用过高 自动修复MySQL的myisam表 file_get_contents无法使用 nginx限制蜘蛛访问 nginx绑定独立IP nginx: [emerg] getpwnam("nginx") failed centos7挂载ntfs格式移动硬盘/u盘 CentOS挂载U盘 linux下检测端口是否连通 xshell鼠标双击时会触发换行 Rsync 服务器启动异常:failed to create pid file /var/...
Performance Schema parameters can be specified at server startup on the command line or in option files to configure Performance Schema instruments and consumers. Runtime configuration is also possible in many cases (see Section 29.4, “Performance Schema Runtime Configuration”), but startup configur...
pretty boneheaded mistake but I'll post it here in case anyone runs into the same thing. I was trying to run the create table statements from a .sql script and I had the schema name in the create statements and it was different from the database i was trying to create it in. ie ...
$mysql -u root -ppassword:mysql> create database test;# 创建数据库Query OK,1row affected (0.00sec) mysql> show databases;# 查看数据库是否创建成功+---+| Database |+---+| information_schema || mysql || test |+---+3rowsinset (0.00sec) mysql> grant all on test.* to user1@'%'...
Any long option that may be given on the command line when running a MySQL program can be given in an option file as well. To get the list of available options for a program, run it with the--helpoption. (Formysqld, use--verboseand--help.) ...
Whenever thePATTERNparameter is omitted completely, the\dcommands display all objects that are visible in the current schema search path, which is equivalent to using an asterisk (*) as the pattern. An object is regarded to be visible if it can be referenced by name without explicit schema qu...
mysql -h hadoop1 -P 9030 -uroot -p create user ‘test’ identified by ‘test’; 2)创建数据库 create database test_db; 3)用户授权 grant all on test_db to test; 4.2、Doris中数据表的基本概念 在Doris中,数据都以关系表(Table)的形式进行逻辑上的描述。
Create DB The thread is executing a create database operation. Daemon This thread is internal to the server, not a thread that services a client connection. Debug The thread is generating debugging information. Delayed insert The thread is a delayed insert handler. ...