Skip to content

Add support for comments in OQL syntax #10652

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
eng-myousif wants to merge 2 commits into
base: development
Choose a base branch
from
Open

Add support for comments in OQL syntax #10652

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
d60a0fc
Add support for comments in OQL syntax
eng-myousif Jan 26, 2026
c48e335
Clarify comment usage in OQL for Mendix 11.7.0+
MarkvanMents Jan 26, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 5 additions & 0 deletions content/en/docs/refguide/modeling/domain-model/oql/_index.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,11 @@ Identifiers are used for module, entity, attribute, association, and alias names

Multiple identifiers can be composed into a path, separated by special characters `.` and `/`. The `.` special character can be used to indicate the module and entity in the form `Module.Entity`. The `/` special character can be used to indicate the attribute of an entity in the form `Module.Entity/Attribute` and it can be used for separating associations in long paths. Examples of paths can be seen in the [Select from Multiple Tables using JOIN](/refguide/oql-clauses/#join) section of *OQL Clauses*.

In Mendix version 11.7.0 and above, comments can be used in OQL queries to improve readability. Comments are ignored during query execution. There are two ways to add comments:

* Single-line comments start with `--`.
* Multi-line comments are enclosed by `/*` and `*/` and support nesting.

### Reserved Words {#reserved-oql-words}

Words with a specific purpose in OQL are reserved. If you use reserved words for entity, variable, or attribute names in an OQL query, they must be wrapped in double quotes `" "`. For example, in the OQL query `SELECT AVG(TotalPrice) FROM Sales."Order" WHERE IsPaid = 1`, `Order` needs to be wrapped in quotes because it is a reserved word, as it can be used to `ORDER BY`.
Expand Down