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harveyslash
  • Member for 8 years, 5 months
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4 votes
1 answer
589 views

Why did adding a secondary index not increase select performance?

4 votes
1 answer
227 views

How does mysql(innoDB) handle same foreign key for join

3 votes
1 answer
91 views

What indexes to use for GroupWise max

2 votes
0 answers
168 views

Groupwise max then join

2 votes
1 answer
1k views

Multiple tables entry with current timestamp

1 vote
0 answers
100 views

How to improve on this database design

1 vote
0 answers
74 views

Clustered index on last_update_at timestamp

1 vote
1 answer
255 views

Database design for actions on some entity

1 vote
2 answers
89 views

Should I normalise this database?

0 votes
1 answer
115 views

How do I write this query?

0 votes
1 answer
657 views

Sql multiple table checks for polling

0 votes
0 answers
291 views

Tag system for multiple Item types and groups Schema