Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with gaps-and-islands
Search options not deleted
user 193369
Gaps and islands problems involve finding a range of missing values (gaps) or a range of consecutive values (islands) in a sequence of numbers or dates.
0
votes
1
answer
2k
views
GROUP BY with date ranges when values change but then change back
Consider a historical table where a value was changed and then changed back:
value | date
3 | 1/1/2019
3 | 1/2/2019
3 | 1/3/2019
4 | 1/4/2019
4 | 1/5/2019
3 | 1/6/2019
3 | …
- 101