mysql-connector-cpp | MySQL Connector/C++ is a MySQL database connector | Database library
kandi X-RAY | mysql-connector-cpp Summary
kandi X-RAY | mysql-connector-cpp Summary
This is a release of MySQL Connector/C++, the C++ interface for communicating with MySQL servers. For detailed information please visit the official MySQL Connector/C++ documentation.
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QUESTION
I am trying to install an application from its source code in the alpine it says there is no res_ninit
, res_nsearch
and res_nclose
but we can see here that do exists in the Linux headers and I have already installed apk add linux-headers
, how can I resolve this issue?
ANSWER
Answered 2021-Oct-07 at 11:00in the Linux headers
Linux is generally/colloquially the name of all unix-ish operating systems with a Linux kernel, but specifically, Linux refers to the Linux kernel tiself. The resolve headers are not part of Linux kernel. linux-headers
install headers needed to compile Linux kernel modules. It's unrelated.
The mentioned resolver headers are implemented inside glibc GNU C library. Alpine distribution uses musl implementation of C standard library, not glibc.
how can I resolve this issue?
One of:
- you can implement
res_ninit
and relevant function that depend on musl and use that implementation when compiling the application - patch mysql-connector yourself to be compilable with musl
- compile/install glibc to your system and compile mysql-connector against it
- do not use alpine for programs that require glibc and use only glibc-compatibile Linux distribution
- notify mysql-connector developers about the issue and financially support them so they will fix the issue
QUESTION
This is what I do:
...ANSWER
Answered 2021-Aug-19 at 17:14Never, ever do an in-source build. cmake .
is always wrong. It even says so in the MySQL documentation: https://dev.mysql.com/doc/connector-cpp/8.0/en/connector-cpp-installation-source-cpp.html
This worked for me:
QUESTION
I want to connect to a MySQL database, only every time I try I get this error:
...ANSWER
Answered 2020-Dec-01 at 22:53After I did everything I described in the edit I solved it. Basically I went to QtCreator, added a new library to the project (C:\Program Files\MySQL\MySQL Connector C 6.1\libmysql.lib
) and now everything works properly!
QUESTION
I would like to be able to connect from my c++ program to a local MySQL instance, but the following minimal file testfile.cpp does not compile and returns undefined references:
...ANSWER
Answered 2020-Mar-28 at 16:55When you compile source files and link binaries with object files and libraries, the order does matter. Shared libraries providing exported symbols must follow object files and other shared libraries importing these symbols. In your case, the shared library must be placed in the end of the c++ command invitation:
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