[FLINK-31774] Add document for delete and update statement

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.18.0, 1.17.2
• Component/s: Documentation
• Labels: pull-request-available
• Assignee: WenJun Min
• Reporter: WenJun Min
• Created: 11/Apr/23 15:40
• Updated: 08/Jun/23 12:24
• Resolved: 08/Jun/23 12:24

Description

I do not find the declaration about the usage of DELETE and UPDATE statement in the SQL section. 

Issue Links

• links to: GitHub Pull Request #22398