1. first, download latest verison of pl/sql developer.
url: http://www.allroundautomations.com
march 6, 2004 - version 5.1.5 released
bugfixes
could not use lob's or objects on oracle 10g
number precision would be incorrect on oracle 9.2.0.4 and 10g
fixed plug-in function ide_getpopupobject from plan window
fixed command window problem with quotes in comments
program window preference "ignore unrecognized pl/sql"
added
displaying a collection column or attribute from a cursor result
set in a test window would lead to "not logged on" error
message
2. use tips:
. the file <tnsnames.ora> in local computer should be
set successfully ;
. if you see the error message about registry, please
modify the following items:
location: main menu "tools" -> "preferences":
modification:
1. under the label "oracle home (empty is autodetect)",
input the directory where oracle client installed,
for example: d:\oracle\product\10.1.0\client_1
2. under the label "oci library (empty is autodetect)",
input the directory where oci.dll installed,
for example: d:\oracle\product\10.1.0\client_1\bin\oci.dll
3. because oracle 10g has some new feautures,
maybe some function will work improperly.
4. restart the program, it should work well .