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ti-chi-bot merged 1 commit into from
Apr 15, 2024
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ebnf set role #17045

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25 changes: 4 additions & 21 deletions sql-statements/sql-statement-set-role.md
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Expand Up @@ -10,24 +10,15 @@ The `SET ROLE` statement is used to enable roles in the current session. After e

## Synopsis

**SetRoleStmt:**

![SetRoleStmt](/media/sqlgram/SetRoleStmt.png)

**SetRoleOpt:**

![SetRoleOpt](/media/sqlgram/SetRoleOpt.png)

**SetDefaultRoleOpt:**

![SetDefaultRoleOpt](/media/sqlgram/SetDefaultRoleOpt.png)
```ebnf+diagram
SetRoleStmt ::=
"SET" "ROLE" ( "DEFAULT" | "ALL" ( "EXCEPT" Rolename ("," Rolename)* )? | "NONE" | Rolename ("," Rolename)* )?
```

## Examples

Create a user `'u1'@'%'` and three roles: `'r1'@'%'`, `'r2'@'%'` and `'r3'@'%'`. Grant these roles to `'u1'@'%'` and set `'r1'@'%'` as the default role of `'u1'@'%'`.

{{< copyable "sql" >}}

```sql
CREATE USER 'u1'@'%';
CREATE ROLE 'r1', 'r2', 'r3';
Expand All @@ -37,8 +28,6 @@ SET DEFAULT ROLE 'r1' TO 'u1'@'%';

Log in as `'u1'@'%'` and execute the following `SET ROLE` statement to enable all roles.

{{< copyable "sql" >}}

```sql
SET ROLE ALL;
SELECT CURRENT_ROLE();
Expand All @@ -55,8 +44,6 @@ SELECT CURRENT_ROLE();

Execute the following `SET ROLE` statement to enable `'r2'` and `'r3'`.

{{< copyable "sql" >}}

```sql
SET ROLE 'r2', 'r3';
SELECT CURRENT_ROLE();
Expand All @@ -73,8 +60,6 @@ SELECT CURRENT_ROLE();

Execute the following `SET ROLE` statement to enable the default role(s).

{{< copyable "sql" >}}

```sql
SET ROLE DEFAULT;
SELECT CURRENT_ROLE();
Expand All @@ -91,8 +76,6 @@ SELECT CURRENT_ROLE();

Execute the following `SET ROLE` statement to cancel all enabled role(s).

{{< copyable "sql" >}}

```sql
SET ROLE NONE;
SELECT CURRENT_ROLE();
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