Merge pull request #29057 from taosdata/docs/TD-33031-3.0
docs: description of user privileges
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@ -12,7 +12,7 @@ TDengine is configured by default with only one root user, who has the highest p
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Only the root user can perform the operation of creating users, with the syntax as follows.
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```sql
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create user user_name pass'password' [sysinfo {1|0}]
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create user user_name pass'password' [sysinfo {1|0}] [createdb {1|0}]
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```
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The parameters are explained as follows.
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@ -20,6 +20,7 @@ The parameters are explained as follows.
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- user_name: Up to 23 B long.
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- password: Up to 128 B long, valid characters include letters and numbers as well as special characters other than single and double quotes, apostrophes, backslashes, and spaces, and it cannot be empty.
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- sysinfo: Whether the user can view system information. 1 means they can view it, 0 means they cannot. System information includes server configuration information, various node information such as dnode, query node (qnode), etc., as well as storage-related information, etc. The default is to view system information.
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- createdb: Whether the user can create databases. 1 means they can create databases, 0 means they cannot. The default value is 0. // Supported starting from TDengine Enterprise version 3.3.2.0
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The following SQL can create a user named test with the password 123456 who can view system information.
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@ -51,6 +52,7 @@ alter_user_clause: {
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pass 'literal'
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| enable value
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| sysinfo value
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| createdb value
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}
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```
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@ -59,6 +61,7 @@ The parameters are explained as follows.
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- pass: Modify the user's password.
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- enable: Whether to enable the user. 1 means to enable this user, 0 means to disable this user.
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- sysinfo: Whether the user can view system information. 1 means they can view system information, 0 means they cannot.
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- createdb: Whether the user can create databases. 1 means they can create databases, 0 means they cannot. // Supported starting from TDengine Enterprise version 3.3.2.0
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The following SQL disables the user test.
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@ -8,7 +8,7 @@ User and permission management is a feature of TDengine Enterprise Edition. This
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## Create User
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```sql
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CREATE USER user_name PASS 'password' [SYSINFO {1|0}];
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CREATE USER user_name PASS 'password' [SYSINFO {1|0}] [CREATEDB {1|0}];
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```
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The username can be up to 23 bytes long.
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@ -17,6 +17,8 @@ The password can be up to 31 bytes long. The password can include letters, numbe
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`SYSINFO` indicates whether the user can view system information. `1` means they can view, `0` means they have no permission to view. System information includes service configuration, dnode, vnode, storage, etc. The default value is `1`.
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`CREATEDB` indicates whether the user can create databases. `1` means they can create databases, `0` means they have no permission to create databases. The default value is `0`. // Supported starting from TDengine Enterprise version 3.3.2.0
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In the example below, we create a user with the password `123456` who can view system information.
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```sql
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@ -76,7 +78,7 @@ alter_user_clause: {
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- PASS: Change the password, followed by the new password
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- ENABLE: Enable or disable the user, `1` means enable, `0` means disable
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- SYSINFO: Allow or prohibit viewing system information, `1` means allow, `0` means prohibit
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- CREATEDB: Allow or prohibit creating databases, `1` means allow, `0` means prohibit
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- CREATEDB: Allow or prohibit creating databases, `1` means allow, `0` means prohibit. // Supported starting from TDengine Enterprise version 3.3.2.0
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The following example disables the user named `test`:
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@ -12,13 +12,14 @@ TDengine 默认仅配置了一个 root 用户,该用户拥有最高权限。TD
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创建用户的操作只能由 root 用户进行,语法如下。
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```sql
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create user user_name pass'password' [sysinfo {1|0}]
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create user user_name pass'password' [sysinfo {1|0}] [createdb {1|0}]
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```
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相关参数说明如下。
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- user_name:最长为 23 B。
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- password:最长为 128 B,合法字符包括字母和数字以及单双引号、撇号、反斜杠和空格以外的特殊字符,且不可以为空。
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- sysinfo :用户是否可以查看系统信息。1 表示可以查看,0 表示不可以查看。系统信息包括服务端配置信息、服务端各种节点信息,如 dnode、查询节点(qnode)等,以及与存储相关的信息等。默认为可以查看系统信息。
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- createdb:用户是否可以创建数据库。1 表示可以创建,0 表示不可以创建。缺省值为 0。// 从 TDengine 企业版 3.3.2.0 开始支持
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如下 SQL 可以创建密码为 123456 且可以查看系统信息的用户 test。
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@ -47,6 +48,7 @@ alter_user_clause: {
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pass 'literal'
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| enable value
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| sysinfo value
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| createdb value
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}
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```
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@ -54,6 +56,7 @@ alter_user_clause: {
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- pass:修改用户密码。
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- enable:是否启用用户。1 表示启用此用户,0 表示禁用此用户。
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- sysinfo :用户是否可查看系统信息。1 表示可以查看系统信息,0 表示不可以查看系统信息
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- createdb:用户是否可创建数据库。1 表示可以创建数据库,0 表示不可以创建数据库。// 从 TDengine 企业版 3.3.2.0 开始支持
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如下 SQL 禁用 test 用户。
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```sql
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@ -9,7 +9,7 @@ description: 本节讲述基本的用户管理功能
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## 创建用户
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```sql
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CREATE USER user_name PASS 'password' [SYSINFO {1|0}];
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CREATE USER user_name PASS 'password' [SYSINFO {1|0}] [CREATEDB {1|0}];
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```
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用户名最长不超过 23 个字节。
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@ -18,6 +18,8 @@ CREATE USER user_name PASS 'password' [SYSINFO {1|0}];
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`SYSINFO` 表示该用户是否能够查看系统信息。`1` 表示可以查看,`0` 表示无权查看。系统信息包括服务配置、dnode、vnode、存储等信息。缺省值为 `1`。
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`CREATEDB` 表示该用户是否能够创建数据库。`1` 表示可以创建,`0` 表示无权创建。缺省值为 `0`。// 从 TDengine 企业版 3.3.2.0 开始支持
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在下面的示例中,我们创建一个密码为 `123456` 且可以查看系统信息的用户。
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```sql
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@ -77,7 +79,7 @@ alter_user_clause: {
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- PASS: 修改密码,后跟新密码
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- ENABLE: 启用或禁用该用户,`1` 表示启用,`0` 表示禁用
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- SYSINFO: 允许或禁止查看系统信息,`1` 表示允许,`0` 表示禁止
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- CREATEDB: 允许或禁止创建数据库,`1` 表示允许,`0` 表示禁止
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- CREATEDB: 允许或禁止创建数据库,`1` 表示允许,`0` 表示禁止。// 从 TDengine 企业版 3.3.2.0 开始支持
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下面的示例禁用了名为 `test` 的用户:
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