Unanswered Questions
18,675 questions with no upvoted or accepted answers
28
votes
0
answers
1k
views
Splitting Snapshot files with MaxBCPThreads for Transactional Replication
I've just set up a publication, and I'm attempting to get the snapshot to apply faster. So far the Distribution Agent is respecting the MaxBCPThreads settings, but the Snapshot Agent is not. I'm ...
CommunityBot
- 1
14
votes
0
answers
4k
views
PostgreSQL trigram GIST vs. GIN indexes
I have a PostgreSQL 9.1 database that contains 10M+ rows and some text fields that need similarity and %word%-like searches, so I decided to use trigram indexes.
Initially, I started to use GIN ...
- 831
12
votes
1
answer
1k
views
MySQL deadlock: upsert query acquiring gap lock twice?
I am trying to debug a deadlock scenario which has been puzzling me for quite some time now. I am wondering if someone can shed any light into how this can happen.
Here is the deadlock output:
------...
CommunityBot
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11
votes
1
answer
16k
views
Conceptual data model for a billing system
I am working on an existing MySQL database. My task is to create a new data model for a billing system on that existing application.
I have created a conceptual data model (click to enlarge):
##...
CommunityBot
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10
votes
0
answers
7k
views
How to backup some selected tables, but not all, in pgAdmin 4?
In pgAdmin 3, the dialog to perform a backup allowed you to check and un-check the tables you wanted to be part of your backup.
In pgAdmin 4, either I am unable to find this feature, or it is not ...
- 705
10
votes
1
answer
8k
views
DBeaver launch script from file
I'm trying to find a good alternative to SQL Developer for performing queries and scripts on Oracle instances.
I find DBeaver to be an interesting tool, it has a lot of great features, BUT it seems ...
CommunityBot
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9
votes
1
answer
1k
views
Convert query in words to relational algebra
I have a follow-up question to a question I have previously asked on SO.
Instead of the query from my initial question, I want to convert the following into relational algebra:
List the names and ...
- 728
9
votes
1
answer
795
views
SSMS 2014 (and 2012) CTRL+TAB requires pressing enter
Sometime last week my CTRL+TAB behavior changed. I used to hit CTRL+TAB, release, then I would be in my previous document tab. Now I hit CTRL+TAB, release, and the nav window is still open requiring ...
- 101
8
votes
0
answers
4k
views
Working on a decision tree database design
I'm doing the conceptual model for a Decision tree database. The goal is store any Decision tree.
I have four entity types: DecisionTree, Node, Branch and Leaf.
Each Decision tree is composed of ...
- 24.2k
8
votes
0
answers
962
views
Extended Events - sqlserver.process_login_finish Not Firing?
We're trying to see whether a client is able to reach a database server, as it's receiving error:
[DBNETLIB][ConnectionOpen (Connect()).]SQL Server does not exist or
access denied.
The error ...
- 21
8
votes
0
answers
653
views
Inconsistent equality checking of Unicode text in Postgres 9.5?
Using PostgreSQL 9.5. It seems like Postgres is being inconsistent with how it compares strings similar to لى. A unique constraint is considering some strings equal that GROUP BY is considering ...
- 881
8
votes
1
answer
1k
views
Oracle Ref Partitioning: Deadlock due to child table row migration
My ordering application uses Oracle 11g Database. This DB has a primary table ORDERS and multiple child tables like ORDER_DETAILS, PLAN etc.
ORDERS table is LIST partitioned on STATUS column and all ...
CommunityBot
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8
votes
1
answer
2k
views
Change Tracking across several Tables
I'm looking into providing DB level change tracking within my system. I need to be able to track changes at an entity level, rather than just individual tables.
Right now, we have triggers on each of ...
CommunityBot
- 1
8
votes
2
answers
3k
views
verify that mongos server is connected to config servers
I've been writing a backup script for sharded replica-sets and it's almost done. Except I can't seem to get it to successfully start the balancer backup after everything's all said and done.
Here's ...
CommunityBot
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8
votes
2
answers
47k
views
The INSERT/UPDATE/DELETE permission was denied on the object 'TheTable', database 'TheDb', schema 'dbo'
I have two SQL Server user accounts on a database that behave differently on INSERT / UPDATE / DELETE. SQL Server version is 2008 R2 (10.50.4042, 64 bits).
UserA (SQL Login): can do these commands (on ...
CommunityBot
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