I've followed the download instructions for SQL Developer v4 as per the download page (
I've installed SQL Developer requires JDK 7 (jdk-7u25-windows-x64.exe) - with no issues.
I've also downloaded and unziped to sqldeveloper-184.108.40.206.27-no-jre.zip to C:\Program Files\
SQL Developer successfully starts, but when I try to connect to a data source, I get the following error:
Status : Failure -Test failed: C:\Oracle11g\product\11.2.0\client_1\BIN\ocijdbc11.dll: Can't load IA 32-bit .dll on a AMD 64-bit platform.
can any tell me how I fix this issue........... I getting fed up using clunky toad
You're trying to use a 32 bit Oracle Client with 64 bit SQL Developer.
You're doing something in SQL Developer that's requiring us to load OCI - in your connection properties, use Network Alias instead of Connect Identifier for TNS, or make sure in your Advanced settings you don't have 'Use OCI/Thick driver' enabled.
Or, install a 64 bit copy of the Oracle Client and tell SQL Developer to use that home instead.