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Questions tagged [libmysql]

Libmysql is a client library for connecting C written application to MySql.

113 questions
83
votes
11 answers

Ruby gem mysql2 install failing

When I try to install the mysql2 gem, it fails with no apparent errors. Does anyone know what to do to work around this so mysql2 installs? $ sudo gem install mysql2 Building native extensions. This could take a while... ERROR: Error installing…
Tanner
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30
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7 answers

mysql2.so: libmysqlclient_r.so.15: cannot open shared object file: No such file or directory

I am trying to run a Rails two app with Ubuntu 10.04 server, sphinx, myql2 version 0.2.7 and percona server 5.5 (Myslql 5.5). mysql2 in irb works ok, I can connect to the db. this rails 2 app is working in another Centos server with MySql 5.1. When…
rtacconi
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16
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3 answers

Cheapest way to determine if a MySQL connection is still alive

I have a pool of MySQL connections for a web-based data service. When it starts to service a request, it takes a connection from the pool to use. The problem is that if there has been a significant pause since that particular connection has been…
MtnViewMark
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13
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2 answers

CLSQL and MYSQL on OS X

I'm working on OS X 10.6.4. I've been using clbuild to install supporting libraries for SBCL (including clsql), and I do all my work through Aquamacs. I installed MySQL using the excellent instructions over at Hive Logic. But when I call (require…
Brendan Foote
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12
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4 answers

"set names" vs mysqli_set_charset — besides affecting mysqli_escape_string, are they identical?

It seems to be common knowledge to use mysql_set_charset / mysqli::set_charset instead of the direct MySQL query set names. The reason often cited is that set names is insecure because the encoding used for mysql_real_escape_string /…
Pacerier
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8
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4 answers

What is difference between libmysqlclient.a and libmysqlclient_r.a?

Which should I use to link for mysqlclient library? What is the difference between them? I can't seem to find the answer. Thanks.
Van Nguyen
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7
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1 answer

Where's the source of mysqlclient.lib?

I have a C++ application which connects to a MySQL server. It all works fine. Currently it uses libmysql.dll. At build time I link to libmysql.lib. As far as I understand I can link to mysqlclient.lib instead and get rid of the dependency of…
Poni
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6
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2 answers

EnvironmentError: mysql_config not found

EnvironmentError: mysql_config not found, while installing MySQL-python Could someone advice me on what to do? I did the following from my-side: Error I got while installing with pip: ubuntu12.04@ubuntu12.04:~$ sudo pip install MySQL-python …
lafoudre
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5
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1 answer

Why Qt Configure can not find correct MySQL installation on target when cross compiling?

I want to build MySQL driver while cross-compiling Qt5 for Arm(Raspberry Pi). In order to check MySQL client libraries installation on target we run: pi@raspberrypi:~ $ mysql_config --version 10.1.38 pi@raspberrypi:~ $ mysql_config…
IMAN4K
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4
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3 answers

MariaDB server times out client connection after 600 seconds

My MariaDB server is timing out my C++ client (using libmariadb) after 600 seconds (10 minutes) of inactivity, and I'm not sure why, because I can't find any configured timeouts that specify that number. Here's my code, where I execute a simple…
villapx
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4
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1 answer

mysql_init() always return null

I have this very short program. For some reason mysql_init always returns null for me. According to the documentation, this happens if there isn't enough memory. How can this be? It's just these few lines of code. #include "mysql.h" int main() { …
marc40000
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3
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1 answer

How to prematurely finish mysql_use_result() / mysql_fetch_row()?

I am in the process of writing my first C client for MySQL 5.5 and have stumbled across the following page in the documentation. Nearly at the end, it states (bold emphasis mine, italic emphasis not mine): An advantage of mysql_use_result() is…
Binarus
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1 answer

Connecting to a remote MySQL server from a Delphi program through SSL

I don't have a good knowledge of SSL principles, but just want the encryption to work for me. I have a DB and a user with "REQUIRE X509" specified. The necessary certificates have been created as described in MySQL docs, and work well - i can…
hhyhbpen
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1 answer

How do I build libmySQL?

I aim to integrate libmySQL into my executable instead of using libmySQL.dll. I use VC++ 2008 @ Windows Vista. I've downloaded "mysql-connector-c-noinstall-6.0.2-win32-vs2005.zip" from http://dev.mysql.com/downloads/connector/c/ It contains only…
Poni
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1 answer

mysqlnd noticeable slower than libmysql using PDO

I'm just switching to mysqlnd to be able to use http://php.net/manual/en/book.mysqlnd-ms.php but I see some serious performance degradation compared to libmysql. NewRewlic shows more 100ms spend in PHP after switching to mysqlnd…
Tuner
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