Unanswered Questions

24
votes
1answer
6k views

MySQL 5.1.66 SSL connection error ERROR 2026 (HY000)

UPDATE2 Using WireShark I found out the problem string (I hope I did): 28 | 9.582638 | 192.168.18.128 | 192.168.18.129 | MySQL Response Error 1043 And the error is (according to docs): Error: ...
16
votes
1answer
691 views

Restore Database using GUI - Wrong file to restore

I'm just messing around with the SSMS graphic interface and studying the options of the "restore" task. One thing that I noticed is when I click on "generate script", the first line of the query is: ...
13
votes
0answers
217 views

Service broker was backed up, now receiving, but doesn't seem to be processing

Having a problem with Event Notifications. On the machine/drive/database that the messages are sent to (receiver), the drive filled up when nobody was looking, so it's been backed up all day. Now ...
12
votes
1answer
386 views

SQL Deadlock on the same exclusively locked clustered Key (with NHibernate) on delete / insert

I have been working on this deadlock issue for quite a few days now and no matter what I do, it persists in one way or another. First, the general premise: We have Visits with VisitItems in a one to ...
11
votes
1answer
194 views

Can I tell when and who updated my database from v11 to v12 on Azure?

Earlier today I noticed that all my Azure SQL database servers where updated from v11 to v12. I am the only one in my company that should be touching those dials, but not the only person in my company ...
11
votes
1answer
266 views

stats_column_id and index_column_id do not update with physical order of clustered index is changed

Unless I'm misunderstanding the purpose of the column, the following code indicates that a change of the structure of the clustered index does not change the ordinal position (stats_column_id)of the ...
11
votes
0answers
431 views

Modification to GEQO (Genetic Query Optimization) of PostgreSQL

I need to implement a functionality that is in line with the GEQO functionality of PostgreSQL. I understand that GEQO approach is to encode query plans as integer strings and GEQO generates these ...
10
votes
1answer
268 views

Can I Improve Performance on Bloated System Tables?

Background: I have numerous databases with a large number of VIEW's, and an extremely large number of SYNONYM's. For example, one db has more than 10k VIEW's and 2+ million SYNONYM's. General ...
10
votes
3answers
864 views

Update all rows

I want to know the most efficient manner to update every row in an extremely large Oracle table for a single column. For example: update mytable set mycolumn=null; or: update mytable set mycolumn=...
9
votes
0answers
243 views

ROW_NUMBER() OVER (PARTITION BY B,A ORDER BY C) doesn't use index on (A,B,C)

Consider these two functions: ROW_NUMBER() OVER (PARTITION BY A,B ORDER BY C) ROW_NUMBER() OVER (PARTITION BY B,A ORDER BY C) As far as I understand, they produce exactly the same result. In other ...
9
votes
1answer
432 views

Update queries slower after enabling SQL Server Full-Text Index

I have an asp.net website with many insert, update, and delete queries running against my database. A few days ago I create a Full-Text Index on two columns of one of tables. After that I realized ...
9
votes
1answer
412 views

Storage snapshots for consistent backup of postgresql - different data and log volumes

We are running many Linux VM's in a vmware/shared storage environment, each running its own instance of postgreSQL (a mix of 9.0 and 9.3). Currently, the entire VM sits on a single root partition/...
9
votes
1answer
563 views

CouchDB and document versioning

I'm currently working on a wiki-esque application using CouchDB and am trying to implement a document versioning scheme. The way I see it there are two ways of doing this: Store each version as a ...
9
votes
1answer
2k views

Use LDAP for name look up with Oracle Instant Client

Partly as a result of having problems with conflicting versions or bitness with the full installation of Oracle client, my development team (of which I'm a member) has been moving towards using Oracle ...
9
votes
0answers
435 views

PostgreSQL Transaction Committing for hours

I'm running into an issue whereby I have two connections from a user to my PostgreSQL server which have been running for about 4 hours and have been in a commit state for quite some time (at least 1 ...

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