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 performance-tuning
Search options not deleted
user 249314
Improving the performance characteristics of a database application or system.
3
votes
2
answers
500
views
Merge join asks for seemingly unnecessary sort before joining
I use one table to update another table. Both the tables have a clustered index where the first 4 columns are the same type of data.
CREATE UNIQUE CLUSTERED INDEX [i109139_I_109139CLI_44C9176D64C84ECB …
- 65
3
votes
1
answer
271
views
SQL server chooses hash match over merge join but the input fields to join should be sorted
I have a simple query that joins two tables on the field PRODID. For some reason, SQL Server opts to use a hash match to join this, but I believe it should choose a merge join, as that field is part o …
- 65