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By default,getreturns only those attributes that have been set explicitly, either by the MySQL Cluster Manager itself, or by the user. In other words, it shows only attributes that are mandatory (including read-only attributes), or that have been set by the user after the cluster was create...
Similarly, on Windows, you can create a batch file using Notepad or another text editor, copy the same get commands as shown previously into it, and save it as getattributes.bat in a convenient location such as the Windows desktop. You can view a list of available mysql client commands...
string connStr = string.Format(“server={0};user id={1}; password={2}; database=mysql; pooling=false”, edtSrv.Text, edtUser.Text, edtPwd.Text); try { conn = new MySqlConnection(connStr); conn.Open(); // 获得数据库列表 List cmd = new List(); cmd.Add(“SHOW DATABASES”); L...
MySQL 密码变更策略配置记录在mysql.user表中,5.7 和 8.0 版本支持的配置略有差异,具体细节可参考官方文档中CREATE USER和ALTER USER语法中password_option部分属性说明[3]。 相关配置参数含义说明 MySQL 5.7 版本下仅支持: default_password_lifetime:密码有效期(默认为 0 或 NULL),表示密码永久有效。
SELECT user_id,login_code,real_name,nick_name,DATE_FORMAT(create_time,'%Y-%m-%d %H:%i:%S') as create_time,GROUP_CONCAT(power_code)as 'power_code'from(SELECT p.id as power_id,p.power_code,p.power_type,su.id as user_id,su.login_code,su.nick_name,su.real_name,DATE_FORMAT(su....
USER_alice通过分配了ROLE_admin拥有管理员权限;USER_bob拥有只读权限。 2. MySQL 权限系统简要回顾 在MySQL 中,所有授权记录保存在mysql数据库的系统表里,包括: mysql.user:全局用户级别权限(如GRANT OPTION、CREATE USER、CREATE TABLESPACE等)。 mysql.db/mysql.tables_priv/mysql.columns_priv/mysql.procs_priv:...
Collection<Long>orderIdValues=getShardingValue(shardingValues, "order_id");Collection<Long>userIdValues=getShardingValue(shardingValues, "user_id");List<String>shardingSuffix=newArrayList<>();/**例如：根据user_id + order_id 双分片键来进行分表*///Set<List<Integer>> valueResult = Sets.cartesian...
setUser(String username) 设置连接AnalyticDB for MySQL2.0集群的用户名,请填AccessKey ID。 如何获取AccessKey ID,请参见账号与权限管理。 setPassword(String pwd) 设置连接AnalyticDB for MySQL2.0集群的密码,请填AccessKey Secret。 setTable(List<String> table) 需要写入的表名List,建议小写。 setColumns(Str...
1140 - In aggregated query without GROUP BY, expression #1 of SELECT list contains nonaggregated column 'a.user_name'; this is incompatible with sql_mode=only_full_group_by, Time: 0.000000s 原因: 在MySQL5.7.5后,默认开启了ONLY_FULL_GROUP_BY,所以导致了之前的一些SQL无法正常执行,其实,是我们的...