fix(sdb): add missing permissions set MTA-6105 (#5069)

Author: SamyOubouaziz

pages/iam/reference-content/permission-sets.mdx

@@ -71,6 +71,7 @@ Below is a list of the permission sets available at Scaleway.
 | ServerlessJobsReadOnly       | List and read access to job definition/run |
 | ServerlessSQLDatabaseReadOnly| List and read access to Serverless SQL Database |
 | ServerlessSQLDatabaseReadWrite| List, read and write access to Serverless SQL Database. Includes data and table structure edition. Does not include permissions to create databases or edit settings |
+| ServerlessSQLDatabaseDataReadWrite| Read, write, edit and delete data in Serverless SQL Database tables. Does not include data and table structure edition, creation of databases or settings edition |
 | ServerlessSQLDatabaseFullAccess| Full access to create, read, list, edit and delete Serverless SQL Database |
 | RelationalDatabasesReadOnly  | List and read access to Managed Database for PostgreSQL and MySQL                                             |
 | RelationalDatabasesFullAccess| Full access to create, read, list, edit and delete Managed Database for PostgreSQL and MySQL |

pages/serverless-sql-databases/how-to/manage-permissions.mdx

@@ -19,6 +19,7 @@ Permissions define the actions a user or an application can perform on a databas
 
 - A Scaleway account logged into the [console](https://console.scaleway.com)
 - [Owner](/iam/concepts/#owner) status or [IAM permissions](/iam/concepts/#permission) allowing you to perform actions in the intended Organization
+- Created a [Serverless SQL Database](/serverless-sql-databases/how-to/create-a-database/)
 
 1. Click **IAM & API keys** on the top-right drop-down menu of the Scaleway console. The **Users** tab of the [Identity and Access Management dashboard](https://console.scaleway.com/iam/users) displays.
 
@@ -28,17 +29,17 @@ Permissions define the actions a user or an application can perform on a databas
 
 4. Complete the steps on the first page of the creation wizard:
 
-  - Enter a **name** for the policy.
+    - Enter a **name** for the policy.
 
-  - Enter a **description** (optional).
+    - Enter a **description** (optional).
 
-  - Select a **principal**, who will be the target of your policy. The [principal](/iam/concepts/#principal) should be the user, application, or group you want to grant access to your database.
+    - Select a **principal**, who will be the target of your policy. The [principal](/iam/concepts/#principal) should be the user, application, or group you want to grant access to your database.
 
-  <Message type="important">
-    - You can choose to create a policy without a principal for now, and attach the principal later.
-    - The policy will have no effect until a principal is attached.
-    - A policy can only be attached to one principal at a time.
-  </Message>
+    <Message type="important">
+      - You can choose to create a policy without a principal for now and attach one later.
+      - The policy will have no effect until a principal is attached.
+      - A policy can only be attached to one principal at a time.
+    </Message>
 
 5. Click **Add rules**. The second screen of the policy creation wizard.
 
@@ -48,28 +49,37 @@ Permissions define the actions a user or an application can perform on a databas
 
 8. Select **Databases** in the left-hand **Products** list, then, tick the permissions set you want to add to the policy:
 
-  - **ServerlessSQLDatabaseFullAccess** allows the user to create and delete databases, edit their configuration, and use the following commands:
+    - **ServerlessSQLDatabaseFullAccess** allows the user to create and delete databases, edit their configuration, and use the following commands:
 
-    - `SELECT`
-    - `UPDATE`
-    - `INSERT`
-    - `DELETE`
-    - `CREATE/ALTER/DROP TABLE`
-    - `CREATE/DROP INDEX`
+      - `SELECT`
+      - `UPDATE`
+      - `INSERT`
+      - `DELETE`
+      - `CREATE/ALTER/DROP TABLE`
+      - `CREATE/DROP INDEX`
 
-  - **ServerlessSQLDatabaseReadWrite** allows the user to use the following commands:
+    - **ServerlessSQLDatabaseReadWrite** allows the user to use the following commands:
 
-    - `SELECT`
-    - `UPDATE`
-    - `INSERT`
-    - `DELETE`
-    - `CREATE/ALTER/DROP TABLE`
-    - `CREATE/DROP INDEX`
+      - `SELECT`
+      - `UPDATE`
+      - `INSERT`
+      - `DELETE`
+      - `CREATE/ALTER/DROP TABLE`
+      - `CREATE/DROP INDEX`
 
-  - **ServerlessSQLDatabaseReadOnly** allows the user to use the following commands:
+    - **ServerlessSQLDatabaseReadOnly** allows the user to use the following commands:
 
-    - `SELECT`
+      - `SELECT`
+
+    - **ServerlessSQLDatabaseDataReadWrite** allows the user to use the following commands:
+
+      - `SELECT`
+      - `UPDATE`
+      - `INSERT`
+      - `DELETE`
 
 9. Click **Validate**. The **scope** and the **permission sets** of your policy display.
 
 10. Click **Create policy** to finish.
+
+The user or application now has the selected permissions, and can perform the corresponding actions on the Serverless SQL Database.

pages/serverless-sql-databases/troubleshooting/connection-errors.mdx

@@ -47,11 +47,14 @@ The [IAM principal](/iam/concepts/#principal) (user or application) does not hav
 
 ### Solution
 
-[Create a new IAM policy](/iam/how-to/create-policy/) or [update an existing one](/iam/how-to/manage-policies/#how-to-edit-a-policys-rules) to grant one of the following permissions sets to the user or application:
+[Grant one of the following permissions sets](/serverless-sql-databases/how-to/manage-permissions/) to the user or application:
   - `ServerlessSQLDatabaseReadOnly`
   - `ServerlessSQLDatabaseReadWrite`
+  - `ServerlessSQLDatabaseDataReadWrite`
   - `ServerlessSQLDatabaseFullAccess`
 
+Refer to the [dedicated documentation](/serverless-sql-databases/how-to/manage-permissions/) for more information on the SQL operations allowed by each permissions set.
+
 ## ERROR: permission denied to create temporary tables/subscription in database
 
 ### Problem