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4 questions
0
votes
1
answer
1k
views
Filtering a recursive CTE as view
i'm using MSSQL Server 2017 and have a CTE used in a view to get the root element of a hirarchical tree linked to one specific element.
If the CTE is used directly and the base elements are allready ...
- 3
5
votes
1
answer
324
views
Why does this CTE return the bulk of its results immediately, but then take several minutes to finish?
I've got a schema roughly like this (this is a simplification of my actual schema):
CREATE TABLE foo (
key1 NUMERIC(6) NOT NULL,
key2 VARCHAR(32) NOT NULL,
val VARCHAR(255) NULL,
...
- 163
4
votes
1
answer
11k
views
Recursive cte avoiding loops
I'm trying to write a recursive CTE to explore a workflow system. Unfortunately, I'm getting maximum recursion errors due to loops:
with cteActs as
(
select a.id as [id], aa.TASKNEXTID as [...
- 1,463
2
votes
1
answer
3k
views
Finding the end of a Relationship chain optimally
I have a table that contains an id column, a parent column, and it's child column. So for every record, I know what record comes before it and what will come after it in a chain relationship, but from ...
- 503