Many thanks

@KoditkarVedant I'm stuck in exactly same situation. Could you provide any code example?

@KoditkarVedant I'm stuck in exactly same situation. Could you provide any code example?

var queryParams = new DatabasesQueryParameters { Filter = null };
var pages = await client.Databases.QueryAsync(databaseId, queryParams);

source

databaseId u can get on Databases property

@I-SER-I This is exactly what I have done:

`
public async IAsyncEnumerable DoSomething()
{
var client = NotionClientFactory.Create(new ClientOptions
{
AuthToken = AuthTokentoken
});

 var queryParams = new DatabasesQueryParameters { Filter = null };
 var pages = await client.Databases.QueryAsync(dbKey, queryParams);
 
 foreach (var Page in pages.Results)
 {
 foreach (var property in Page.Properties.Where(x => x.Value.Type!=PropertyValueType.Title))
 {
 if(property.Value is RelationPropertyValue relationProperty)
 {
 yield return string.Join(",", relationProperty.Relation.Select(x => x.Id.ToString()));
 }
 
 yield return property.Key + " - " + property.Value.Id + " - " + property.Value.Type;
 
 }
 }
 
 }`

When my Notion database looks like this:
image
I should be able to see those related pages but they are not there:
image
Marked filed should give me 'Relation1Page'

Ok, solved by myself. Maybe this would be helpfull for anyone in future. In my case there were always empty relations. I had to enable my related table in Notion to use same integration as parent.