Trouble shooting an error message. invalid/password - oracle-sqldeveloper

I opened sqldeveloper and logged in to my the schemas I created, but I received an error message invalid username/password. The credentials are correct so I don't know why this is.
I uninstalled the Oracle 11g from my laptop and deleted the sqldeveloper folder. I re-installed the Oracle 11g and extracted the content of the sqldeveloper, double click on the sqldeveloper.exe file to open the sqldeveloper. I clicked to open a connection, entered password for the corresponding connection, but the problem remains the same.
An error was encountered performing the requested operation:
ORA-01017: invalid username/password; logon denied
01017. 00000 - "invalid username/password; logon denied"
*Cause:
*Action:
Vendor code 1017
I expected to be able to log in successfully because I used sqldeveloper 3 days ago and made changes to my computer.

The credentials are correct so I don't know why this is.
They are in fact, NOT correct, else you would be logged in.
The most likely causes of seeing this are:
you think you know the password, but you don't
you aren't logging into the right database
you're trying to log in as SYS w/o the AS SYSDBA clause
For the 2nd, this is more likely in 12c and higher in a Multitenant environment, where there is a CONTAINER and one or more PLUGGABLE databases. Make sure you're connected to the RIGHT instance - use the SERVICE NAME, not the SID in your connection definition.
Which would look like this in SQL Developer:
For the 3rd, if you're using something like SQL Developer, use this

Related

"isc_attach_database failed" error FlameRobin for connect Firebird database

I'm trying setup Firebird 2.5 with FlameRobin 0.9.3, installed on Windows 10 64bit. The .fdb files are on the same disk of the Firebird machine and the FlameRobin program.
I'm trying to connect EMPLOYEE.FDB file with FlameRobin getting this error.
My settings for this database file below.
I never changed my sysdba password. Is it due to this error ODBC driver?
Edit: I've created a new database on ISQL to try. Username: SYSDBA Password: 31202333
But I am getting same error on FlameRobin.
The error means that your username does not exist (unlikely for SYSDBA), or the password is incorrect*. In Firebird, passwords are system wide, not per database. Check your password (default installations of Firebird on Windows use the password 'masterkey'). Otherwise try resetting the password using gsec.
The fact it might work with ISQL, is that you're using a local path, which may cause ISQL to use Firebird embedded mode, and in embedded mode on Windows, the password is ignored (on the assumption that if you have filesystem access to the database file, you are allowed to open database). I guess that, if instead of 'D:\sq\sample.fdb', you'd use 'localhost:D:\sq\sample.fdb' in ISQL, you would get the same error as in FlameRobin.
*: In Firebird 3 and later it can also mean that the user does not exist for the authentication plugins tried, even though the user may exist for a different authentication plugin.

Codeigniter connection to remote PostgreSql database

I hope someone can help. I am running codeigniter 3.05 and trying to connect to a remote PostgreSql database. If I set session to database, I get include(.../views/errors/html/error_php.php) failed to open stream error message.
No other session configuration setting generates the error. If I run a method on a model, I get the same error along with: Fatal error: Call to a member function from() on null in /opt/share/php/ci/application/libraries/ActiveRecord.php on line 295.
I run the PostgreSql client from command line and I can connect to the database ok. I am running Ubuntu 15.04 and I have checked permissions and ownership settings for Codeigniter. I had a similar problem loading the model, but, when I changed the first letter of the name of the file to uppercase, the message disappeared.
Is there a database driver that I need to change the first letter so Ubuntu can find it? Or, what else could it be?

Mysql Workbench error 1142 "Error querying security information" on Data Export

yesterday I updated my Workbench to the latest version available, the 6.3.6 build 511 CE on Windows 10.
Now I'm trying to make a dump of a remote database via the "Data Export" feature, which has always worked.
But, as soon as I click the "Start Export" button, I get this error:
Unhandled exception: Error querying security information: Error
executing 'SELECT * FROM mysql.user WHERE user = '[username]' and
Host = '[host]' ORDER BY User, Host'
SELECT command denied to user '[username]'#'[host]' for table 'user'
SQL Error: 1142
I know that I don't have the permissions to read that table, but why is that needed to perform a data export?
I've tried to check the force option (Continue even if we get an sql-error) but it's still not working.
Is this a Workbench bug? Or is there any way to avoid this query?
I had this exact same issue. The solution provided in this thread (same as the_nuts answer) is to uninstall 6.3.6 and install 6.3.4 from the archived versions: https://downloads.mysql.com/archives/workbench/
Update as of 13th June 2016
This bug has now been fixed
Download 6.3.7 (or later if available) from here
Found, this is indeed a bug of the version 6.3.6:
MySQL Bugs: #79807: Workbench Data Export: Unhandled exception: Error querying security information
MySQL Workbench has the correct behavior. If you are using a user other than 'root' MySQL Workbench will display that alert. However, if you setup your access to the server and database as root you will not run into problems exporting/importing because you have the right access to do so.

What can cause "Access to database is denied by server administrator"

A few days ago I started working with firebird on opensuse. When I try open the database by using monodevelop(C#), I get the error message:
"access to database is denied by server administrator"
How can I solve this?
I am using firebird 2,5, opensuse 13.1, and monodevelop.
You are trying to access a database in a location that is not allowed by the server configuration. There are two potential causes:
The value(s) of DatabaseAccess in firebird.conf do not include or explicitly deny the current location of the database.
To fix this you either need to configure an alias and use the alias to connect, move the database to one of the allowed folders, or add an additional location to the configuration entry
the firebird user (the user running the server process) does not have access to the database file.
To fix this you need to make sure that the firebird user of the server process (if connecting through the Firebird server), or your own user (if using embedded) has sufficient access rights to the database.
See also http://www.firebirdfaq.org/faq39/ and http://ibexpert.net/ibe/index.php?n=Doc.ConfiguringFirebird#DatabaseAccess

Can't connect to local Firebird with ISQL

I'm trying to setup a local firebird instance to test against but am unable to connect to it with even ISQL. I have tried to following by following the quick start guide here:
CONNECT ..\examples\empbuild\employee.fdb user SYSDBA password masterkey;
Which resulted in:
Statement failed, SQLSTATE = 08001
unavailable database
After some searching I tried modifying that to:
CONNECT "localhost:C:\Program Files\Firebird\Firebird_2_5\examples\empbuild\employee.fdb" user SYSDBA password masterkey;
Which resulted in:
Statement failed, SQLSTATE = 28000
cannot attach to password database
After confirming I had the right directory path I decided to give on on connecting for now and try creating a new DB:
SQL>CREATE DATABASE 'C:\data\test.fdb' page_size 8192
CON>user 'SYSDBA' password 'masterkey';
Which also gave me the error:
Statement failed, SQLSTATE = 08001
unavailable database
Are there any common pitfalls I might be hitting? I've also tried the commands above both with and without the firebird service running. Also is there a detailed reference on the SQLSTATE codes?
As already mentioned in my comments the problem is caused by running the Firebird server as an application. Firebird has its password database (security2.fdb) in C:\Program Files\Firebird\Firebird_2_5. As this database is (almost, but not entirely) a normal Firebird database, the server requires write access to this database (for the transactions, etc).
By default (with UAC) users do not have write access to the password database, so this requires elevation to Administrator. So access to Firebird requires that you either run the application as a service with sufficient rights (eg as done by the default installer), or when running the server as application to run it 'As administrator'. Another option is to not install it in Program Files.
This BTW applies double when accessing the example employee database as this database file is also located in the Program Files folder.
This is for macOS/OSX (mine is 10.15) firebird ver 2.5 users.
The installation process here does not ask for a sysdba password. Which means: the security database 'security2.fdb' does not exist after a new installation.
This seems to be intentionally for security reasons since > ver 2.5.
To create one, we use the demo database as a helper:
open sql as su: >sudo isql (we don't have user rights on dir)
Connect to a existing db:
sql>connect
"/Library/Frameworks/Firebird.framework/Resources/examples/empbuild/employee.fdb
" user 'SYSDBA' password 'masterkey';
Now we created the missing file 'security2.fdb' in the folder:
"/Library/Frameworks/Firebird.framework/Resources/English.lproj/var/"
(jro)