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Questions tagged [connections]

One or more connections to a database or database server. For questions about *establishing* a connection, use the **connectivity** tag instead.

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MySQL general log

Is there away to have MySQL dump its log to a remote MySQL server? I would like to audit MySQL connections but I don't want the server to store all the information local on its own hardware.
MrNemus's user avatar
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39 votes
3 answers
34k views

Is a Postgres long-running query aborted if the connection is lost/broken?

If I open a connection to Postgres and issue a long-running query, and then break the connection (e.g., kill the client process that opened the connection), will the long-running query continue to run,...
Rob Bednark's user avatar
  • 2,203
25 votes
2 answers
65k views

Max number of user connections

In SQL Server 2012 Standard edition, I know that the max number of user connections is 32,767. What should I do as a DBA if I am heading towards this number? Currently there are 30,000 user ...
sebeid's user avatar
  • 1,401
6 votes
2 answers
9k views

sys.sp_reset_connection. Why theres a lot of them ?

Theres a lot of questions here on DBA EXCHANGE. But none of them can help me. I have 2 problems: 1) Using sp_whoisactive, I found lots of sys.sp_reset_connection;1( I know they are ...
Racer SQL's user avatar
  • 7,436
5 votes
1 answer
6k views

Proxy authentication for PostgeSQL

The following seems likely to be a fairly common situation, but I haven't seen any solutions. I have a PostgreSQL database containing views that are specific to the $user, in order to restrict data ...
beldaz's user avatar
  • 1,720
94 votes
4 answers
253k views

How to drop all connections to a specific database without stopping the server?

I want to drop all connections (sessions) that are currently opened to a specific PostgreSQL database but without restarting the server or disconnecting connections to other databases. How can I do ...
sorin's user avatar
  • 1,242
78 votes
3 answers
68k views

What is the difference between a connection and a session?

What is the difference between a connection and a session and how they are related?
jrara's user avatar
  • 5,353
21 votes
5 answers
45k views

Azure SQL Database "Login failed for user" in application, but works fine in SSMS

I wanted to try out the contained database users feature on Azure SQL Database V12, but I'm having a problem authenticating that seems odd to me. I created a database called Classifier. I added my ...
Ben Collins's user avatar
19 votes
4 answers
51k views

How can I check if connection to Sql Server is encrypted?

In SQL Server I can "Force Encryption" in protocols settings. If I leave that set to "No" any client can still require encryption. Can I somehow see what connections to the ...
Mathias Rönnlund's user avatar
5 votes
1 answer
5k views

Find source of spids that show no hostname

I have a busy SQL 2012 server where connections to one particular database (using the same SQL login) don't show a "hostname", and I need to find out which box (of several) these connections are ...
BradC's user avatar
  • 10k
4 votes
1 answer
11k views

PostgreSQL: Using the .pgpass file

I have been reading up on the .pgpass file, but I can’t get it working for me. My .pgpass file looks something like this: 127.0.0.1:5432:accounts:fred:p@55w0rd I set the privilege to 0600 (this is on ...
Manngo's user avatar
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3 votes
0 answers
698 views

SQL Server Management Studio creates 18456 login error using registered server group

I have been using "Local Server Groups" registration for quite a while now with SQL Server 2008 Management Studio. I have created a group with 5 registered servers. They are registered using ...
Magier's user avatar
  • 4,797
2 votes
2 answers
3k views

DAC connection error

I'm having a problem connecting using my dedicated admin connection in SQL Server 2014. I just wanted to test it out. I have DAC enabled in sp_configure. I have performed RECONFIGURE. I have ...
user3469285's user avatar
1 vote
1 answer
445 views

What database name should I use to connect Tomcat with my database

I have a dump file in Oracle and I should use Oracle 12c. I installed it, created a database and imported the dump into a tablespace, but I can't connect it with my application on Tomcat. I'm lost ...
gani amine's user avatar
1 vote
1 answer
2k views

Multi-thread Informatica connections to use different processors on target database server

See this question for reference. Can data streams from Informatica to SQL Server be multi-threaded? I've got most of my problem figured out. I've split up the one large table into four smaller ...
JustBeingHelpful's user avatar
1 vote
1 answer
681 views

SQL Server Error "Database 'mssqlsystemresource' does not exist."

On Linux, whenever I run use mssqlsystemresource to get access to Resource Database, I get an error. How do I resolve this. 1> use mssqlsystemresource 2> go Msg 911, Level 16, State 1, Server ...
Evan Carroll's user avatar
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1 vote
2 answers
4k views

Connect to remote EC2 Postgresql database

I want to setup a connection between a webserver and a PostgreSQL 9.3 server. Both are hosted on Amazon EC2 servers and are part of the same security group. I can't get the connection working. The ...
SPRBRN's user avatar
  • 138
0 votes
0 answers
62 views

Can't connect to database - The specific error code is 1006

Yesterday I entered data into databases - it was several million records. Everything went ok, I was happy. But today, when I want to connect to the database, I get this error. The problem now is that ...
Jan Kůst's user avatar
0 votes
2 answers
2k views

MySQL performance tuning related connection

I am running openstack cloud and it use mysql database which is MariaDB 10.1.30 I am sometime seeing connection reset from multiple clients, to trying to find out what is going on in database, I am ...
Satish's user avatar
  • 231
0 votes
1 answer
3k views

Same session ID(with same SQL text) but 3 different connection ids

I was listing out all sessions open in my sql server 2016 production server. I have issues with slow performance and i have been investigating it. I see that i have several same sessions(session_id) ...
user9516827's user avatar
  • 1,335