I install MysqlConnector/C, add in additional include directories MySQL include directory, and add in additional library directories MySQL lib directory (there is no lib/opt directory), and write sql::mysql::MySQL_Driver and get compile error, sql namespace not found.
I have visual studio 2012, and my application is console application (with stdafx.h file). What is problem?
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When I am compiling the Java code, I have written the command line shows the following:
C:\HTML>javac Jdbc.java
Jdbc.java:5: error: package com.mysql does not exist
Class.forName(com.mysql.jdbc.Driver);
^
1 error
I have installed XAMPP and started the Apache, MySQL and Tomcat and they are working. I have installed MySQL Connector which is platform independent and latest. I have copied the JAR executable file to the JDK folder. I have added the jar executable file path in the edit system environment variables,
''' Class.forName(com.mysql.jdbc.Driver);'''
If you reference classes from a library, you should add that library to the classpath (i.e. javac -cp .;path\to\your\mysql-connector.jar Jdbc.java). However, that would immediately result in a different error, because that code should be Class.forName("com.mysql.jdbc.Driver") (passing a String).
Some further remarks:
I have copied the JAR executable file to the JDK folder.
You should never manually copy files to the JDK folder (in older versions there was the ext mechanism, but this no longer exists in recent Java versions). In addition, MySQL Connector/J is a library, not an executable jar.
I have added the jar executable file path in the edit system environment variables
Java JARs do not belong on the PATH. In theory you can add them to CLASSPATH environment variable, but that is generally considered a bad idea: most ways of executing Java do not actually use it, and if it does get used, it can result in unexpected behaviour because of conflicting or unexpected libraries on the classpath, etc.
I'm getting the following error message when I try to run an application that connects to a MySQL database instance:
"[FireDAC][Phys][MySQL]-314. Cannot load vendor library [libmysql.dll or libmysqld.dll]. Hint check it is in the PATH or application EXE directories, and has x86 bitness.".
The error persists even with the libmysql.dll file on the same directory of the application executable.
Beyond to install the MySQL Connector/C to get the libmysql.dll, it is necessary to install the Visual C++ Redistributable Packages for Visual Studio 2013 too.
Just copy libmysql.dll into the same folder of the application, or add the path to libmysql.dll into Path variable of system.
I'm using the CodePlex-hosted Microsoft.SqlServer.IntegrationServices.Build project to build a DLL that contains the MSBuild tasks for building SSIS packages via MSBuild.exe.
I also am using an MSBuild proj file that's floating around the web.
More here:
https://speaksql.wordpress.com/2013/06/07/a-journey-to-db-deployment-automaton-ssis-build-using-msbuild/
I've opened the CodePlex project, disabled signing, switched it to 4.6.1 and built the DLL and corrected paths etc. and go it semi-working. However MSBuild spits this error:
Could not load file or assembly 'Microsoft.SqlServer.DTSRuntimeWrap, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The system cannot find the file specified.
I've installed SSDT latest for Visual Studio 2015. I have various SQL Server editions installed on my dev PC. The DLL seems to be present; I've copied all I need into one folder for the moment.
Open the CodePlex project again and remove the reference to Microsoft.SqlServer.ManagedDTS.
Look on your local disk for the missing Microsoft.SqlServer.DTSRuntimeWrap.dll and note the version(s) you have available.
Now look on your disk for Microsoft.SqlServer.ManagedDTS.dll and note the version(s).
Re-add the reference but make sure you pick a DLL for which you also have the version of the 'wrap' available.
Now make sure those DLLs are (re)copied over into your working folder or whatever.
If you're still having problems, you may need to copy some files around so that MSBuild.exe can find them or edit/create a config file for MSBuild.
How to solve: Custom MSBuild task requires assembly outside of AppBase
I've been using Flashdevelop (version 4.4) for some time now with zero problems. I recently reinstalled Windows 7 however, and after installing Flashdevelop it is demanding Java 1.6 and won't compile without it. Let me be more specific, here is the error I get when I try to compile a simple HelloWorld-type test:
"Running process: C:\Program Files (x86)\FlashDevelop\Tools\fdbuild\fdbuild.exe "C:\Users\marc\Documents\DeleteMe\DeleteMe\DeleteMe.as3proj" -ipc 01be003c-6cb5-4d0b-9c35-c59dd2ea7a19 -version "4.6.0; 3.3" -compiler "C:\Program Files (x86)\FlashDevelop\Tools\flexsdk" -library "C:\Program Files (x86)\FlashDevelop\Library" -cp "C:\Program Files (x86)\Java\jdk1.6.0_34\bin" -cp "C:\Program Files (x86)\Java\jdk1.6.0_34"
Building DeleteMe
mxmlc -load-config+=obj\DeleteMeConfig.xml -debug=true -incremental=true -swf-version=16 -o obj\DeleteMe634829909556672047
Starting java as: C:\Program Files (x86)\Java\jdk1.6.0_34\bin\java.exe;\bin\java.exe
Unable to start java.exe: The system cannot find the file specified
Could not compile because the fcsh process could not be started.
Build halted with errors (fcsh).
INITIALIZING: Failed, unable to run compiler
Done(1)"
The GlobalClasspath setting for the Java 1.6 JDK is set to: C:\Program Files (x86)\Java\jdk1.6.0_34\bin
I have also set my JAVA_HOME environment variable to the same location as well. Might I be neglecting to set another environment variable?
JAVA_HOME should be
C:\Program Files (x86)\Java\jdk1.6.0_34
and not
C:\Program Files (x86)\Java\jdk1.6.0_34\bin
FlashDevelop currently doesn't support that your JAVA_HOME environment var contains several paths (C:\Program Files (x86)\Java\jdk1.6.0_34\bin\java.exe, \bin\java.exe).
Modify it to only indicate the first path (C:\Program Files (x86)\Java\jdk1.6.0_34\bin\java.exe).
As someone who was dealing with this, I just found an answer that doesn't involve mucking with the PATH variables.
Go into your Flex SDK, /bin directory, look for the JVM config file conveniently named jvm.config
Inside, there is a param 'java.home' which, if left empty, will cause it to search for it's own value. Enter in the main path to the JRE - in my case,
java.home=C:\Program Files\Java\jre1.6.0_07\
I found mine by going to "Control Panel > Java > Java tab > View... button" to see all the installed versions and their paths
I prefer this method because I feel like you shouldn't have to modify settings on your whole system to get 1 program to work, if you have the option instead to just modify that program's settings.
jvm.config in C:\Program Files (x86)\FlashDevelop\Tools\flexsdk\bin\jvm.config is much more better than path variable.
Please avoid Path variable.
In jvm.config just set jre URL directory
java.home=C:\Program Files\Java\jre1.6.0_07
May be you update the Java, last version of Java ask you to delete older version. Then go into the file
C:\Program Files (x86)\FlashDevelop\Tools\flexsdk\bin\jvm.config
and replace
java.home=C:\Program Files\Java\jre1.6.0_07\
by the folder were is your new version
java.home=C:\Program Files (x86)\Java\jre1.8.0_25\
How to connect with MySQL from Visual C++ Microsoft Visual Studio 2008 ? I tried googling and found solutions all of which ended with fatal errors like linker errors,... etc. Please explain (or provide a link) step by step, including prerequisites (with links) and all details. I don't need any query examples.. just connecting to MySQL. Thanks in advance.
MySQL++ supports VC++ 2008, and comes with specific documentation on how to set up your project to avoid the link errors you're seeing.
Disclosure: I'm MySQL++'s maintainer
This worked for me (I am using xampp):
Open a C++ project (with precompiled header)
Change it from Debug to Release.
Install complete mysql (if you
install complete mysql, a C
connector will also be installed as a
include and lib file, which is not
installed in typical installation)
copy mysql/include to xampp/mysql
project > project properties > configuration properties > c++ > general > additional include
directory --> C:/xmapp/mysql/include.
Project > add existing item > lidmysql.lib (it’s found in
mysql/lib/opt.)
Copy libmysql.dll to c:\windows.
Alternativly we can copy it to the
project’s folder or we can set path
environment variable. But we only
tested it copy to c:\windows