Please help? Question about querying #tag and a specific page

[Ramenfoxwithsocks]

Non-developer here so please bear with me. Counting on all the experts here!

I'm trying to query a #tag AND specific page... this is what I've tried so far, but to no avail.

list from #FollowUp and dv.pages("MyPage")

Also tried looking into other discussions but my brain is too smooth.

Please help?

[blacksmithgu]

By "querying a specific page", what do you mean? Are you looking for references of that tag in the page? Do you just want to include the page in your list result?

[Ramenfoxwithsocks]

Ah! Thanks for helping me clarify my question and for taking the time to assist me!

I'm a long-time Roam user (used to blocks as the atomic unit) and in a way, I'm trying to see if I can replicate the habits I've built up in Roam into Obsidian.

Perhaps I can better explain my use case:

I'd like to create a list on PageA that gives me all blocks that include a tag in PageB.

I hope I'm explaining myself well. And apologize in advance if I'm not!

[mnvwvnm]

Well, I never used Roam, but I see a recent systematic misreading in the way that tags works in Obsidian (maybe because a transposition from Roam logic... I don't know).
By "misreading" I mean: the direct relation between a tag and blocks.
In dataview tags are, mainly, page level metadata. If you ask for FROM #tag dataview returns pages (by default the file link) that contains #tag, not the content near/under the tag.

[Ramenfoxwithsocks]

@mnvwvnm -- Ah that makes sense!

And unlike Roam, blocks do not have block-IDs by default, which (I guess) would make querying for specific #tag mentions a challenge.

[mnvwvnm]

If you're interested in work in a similar way, I suggest the use of bullet point lists.

method 1

(via tag in list text: get all lists with specific tag)

content, content...

- this is a special note with a #tag
- another bullet point list

more things...

Then you can query the lists for specific tag:

(list query)

LIST WITHOUT ID
	Lists.text
FROM "your-folder-path"
WHERE file.lists
FLATTEN file.lists AS Lists
WHERE contains(Lists.tags, "#tag")

(table query)

TABLE 
	rows.Lists.text
FROM "your-folder-path"
WHERE file.lists
FLATTEN file.lists AS Lists
WHERE contains(Lists.tags, "#tag")
GROUP BY file.link

method 2

(via heading/section: get all lists under specific header)

content, content...

## special
- this is a special note
- another bullet point list

more things...

LIST WITHOUT ID
	Lists.text
FROM "your-folder-path"
WHERE file.lists
FLATTEN file.lists AS Lists
WHERE meta(Lists.section).subpath = "special"

TABLE 
	rows.Lists.text
FROM "your-folder-path"
WHERE file.lists
FLATTEN file.lists AS Lists
WHERE meta(Lists.section).subpath = "special"
GROUP BY file.link