Failed to connect to Oracle 10g on Win7 64bits

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Hi everybody,

I've created a simple program on ASP.NET to connect to oracle 10g with this connection string:

provider=MSDAORA;data source=ORCL;user id=SCOTT;password=TIGER

It ran successfully on win7 32bits. But when i move it to win7 64bits, it can't connect to oracle. The following error showed up:

ORA-06413: Connection not open.

My connection code is:

OleDbConnection conn = new OleDbConnection(oracleConnStr);
conn.Open();//The error showed up here...

How to solve this? Currently, i use oracle 10g 32bits on Windows 7 64bits. Do i have to change to oracle 11g?

----------------------------------------------------------------------------------------

I've created a window form application and use that connection string with building target is x86 and it ran successfully. But ASP.NET project with target is x86 still show up that error!

Posted 17-May-11 18:28pm

thanhvinh0906

Updated 18-May-11 3:54am

v24

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Perry Bruins · Answer 1 · 2011-05-17T18:55:00

Solution 1

I have had the same problem before, In my case it worked to build the project as 32 bits application instead of 64 bits. the 32 bits OCI dll from Oracle does not like to be addressed from a 64-bits app. You can change this in the buildsettings of your project (target platform).

Posted 17-May-11 18:55pm

Perry Bruins

Comments

thanhvinh0906 18-May-11 1:06am

I've changed target to x86, but still throw that error

thanhvinh0906 18-May-11 4:42am

I've create a window form application and use that connection string with building target is x86 and it ran successfully. But ASP.NET project with target is x86 still show up that error!

thatraja · Answer 2 · 2011-05-17T21:48:00

Solution 2

Here you go for solved links

ORA-06413: Connection not open[^]

ORA-06413: connection not open tips[^]

Oracle 06413: Connection Not Open (x64)[^]

Oracle Connection from SSIS – ORA-06413: Connection not open.[^]

Posted 17-May-11 21:48pm

thatraja

FarhanAmary · Answer 3 · 2014-04-09T20:54:00

Solution 3

have you checked the environment variables for ORACLE_HOME and Path variable?

Posted 9-Apr-14 20:54pm

FarhanAmary