Refers to a connection used to transfer data between two endpoints, such as between a client and a web, database, web service or other server.
A connection is a session established between two communications endpoint applications.
Questions tagged [connection]
10252 questions
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votes
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node js: check mysql connection before a query
I use node js with mysql and want to avoid that the app crash on connection errors.At the moment i use this :
function mysql_handleDisconnect() {
mysql_connection = mysql.createConnection(mysql_config_obj); // Recreate the connection, since
…
user3776738
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5 answers
Python AttributeError: 'module' object has no attribute 'connect'
I'm trying to create a program with sqlite3 database using Ubuntu (Xubuntu 14.04) and the pre-installed version of Python. I tried if the first lines are working but there is already an error. I installed "python-sqlite" and "sqlite3". Can anyone…
mschoenwaelder
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PHP/PDO: How to get the current connection status
What is the PDO equivalent of:
mysqli_stat($dbConn);
P.S. I use it to (get a message to) make sure I am connected
Omar
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Confusing PDO-only problem : Can't connect through socket/Access denied/Can't connect to server (shared host)
So the problem changed from what it was, i'll leave the original question below to prevent bad reviews on answers like I had after someone editing his question I answered :
So I am working on a (really lame) shared hosting which has PDO installed,…
Julien
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16
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4 answers
pooled connection timed out
On the production server sometimes randomly the connection fails to the ORacle database. I get a lot of
Oracle.DataAccess.Client.OracleException
Pooled connection request timed out
at…
Coder
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16
votes
2 answers
WebSocket send extra information on connection
Is there a way for a WebSocket client to send additional information on the initial connection to the WebSocket server?
I'm asking because I want the client to send the user ID (string) to the server immediately. I don't want the client to send the…
ma11hew28
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Getting a JDBC connection from EclipseLink
using EclipseLink as JPA 2.0 provider, I can obtain a JDBC connection by simply calling
Connection con = entityManager.unwrap(Connection.class);
But I'm unsure what I'm responsible for. Do I have to close the connection after submitting my queries?…
user1494080
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15
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5 answers
How to obtain the list of Oracle's SIDs
I have the host, port, user id and password but missing SID for connecting to Oracle DBMS. How can I find the list of SIDs on that server?
Roman Kagan
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15
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2 answers
Using Directory.Exists on a network folder when the network is down
My company's code base contains the following C# line:
bool pathExists = Directory.Exists(path);
At runtime, the string path happens to be the address of a folder on the company's intranet - something like \\company\companyFolder. When the…
user181813
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2 answers
Mongo opens too many connections
I am trying to write a lot of data to MongoDB, in a Java loop. I am getting errors based on the number of connections open.
My theory is that since MongoDB is not transactional, lots of connections can be opened simultaneously. However the Java code…
Ankur
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9 answers
Database Laravel php artisan migrate connection refused
When I use 'php artisan migrate' I get the following error message:
[Illuminate\Database\QueryException]
SQLSTATE[HY000] [2002] Connection refused (SQL: select * from information_schema.tables where table_schema = homestead and table_name =…
Femke
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15 answers
Initial connection to SQL Server Connection Is Slow. Why?
I have run into a situation with a C# application installed at two sites where the initial connection to SQL Server is extremely slow. I wrote a test application to verify where the slowdown occurs and it is on the first SQLConnection.Open…
user281677
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15
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5 answers
check internet connection in cocoa application
How do I check internet connection in an OS X cocoa application?
Can Apple's iOS Reachability example code be reused for this purpose?
Thanks,
Nava
Nava Carmon
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15
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2 answers
spring or hibernate connection leak
I am using spring with hibernate on a webapp (hibernate-core-4.3.8.Final and spring 3.2.11.RELEASE).
I am using hikaricp (v 2.2.5) as the connection pool impl which detects a connection leak and prints the stacktrace below. I am using spring's…
abdel
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Get signal strength of WIFI and Mobile Data
In my app I need to check the connection speed of both WiFi and Mobile Data and then compare it, then switch to which ever network has the highest speed.
So how can I get the speed or best signal strength of wifi and mobile
data?
how can I switch…
WISHY
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