[DOC-13661] Update RBAC for SQL++ (Capella)

[rakhi-prathap]

PR to simplify and fix RBAC content for SQL++ statements (for Capella).

Updating the scope to add fine-grained RBAC.

Key changes include:

• Replacing privileges like query_select, query_manage_index, etc., with more high-level privileges like Read and Write.
• Adding fine-grained RBAC.
• Matching terminologies on the Capella UI.
• Removing server-specific terms.

Preview site:

• Link: SQL++ Statements
  • Open the document for each SQL++ statement.
  • Check the Prerequisites section on that page for the RBAC details.
• Preview credentials: Credentials for internal review

[rakhi-prathap]

This note does not seem relevant to MERGE statements. Confirm with SME.

[simon-dew]

ANSI Merge Insert and ANSI Merge Update both let you specify the expiration, so I think it does apply here.

[rakhi-prathap]

Currently, RBAC privileges are not listed for the following statements:

• BEGIN TRANSACTION
• COMMIT TRANSACTION
• EXECUTE
• ROLLBACK TRANSACTION
• SAVEPOINT
• SET TRANSACTION
• UPDATE STATISTICS

[simon-dew]

Waiting for fine-grained RBAC for Capella to be released before looking at this again

[simon-dew]

Thanks for this! I've checked the cluster access privileges against PRD: Fine grained RBAC in Capella and provided the names of the advanced Capella privileges, where required.

Note that there are Capella privileges for managing and executing query functions, so CREATE FUNCTION, DROP FUNCTION, EXECUTE FUNCTION, and EXPLAIN FUNCTION should all be available via cluster access credentials.

[rakhi-prathap]

@simon-dew I've updated the PR to add fine-grained RBAC. Could you please take another look at this? Thanks!