Not able to see Tables in SQL Developer after connecting - oracle-sqldeveloper

I am new to SQL Developer.I am using 4.0.3.16.84-x64 version.After entering the connection details test connection is showing success and I am able to login successfully but when I click on the expand button beside the connection name no tables are appearing. Note with same connection parameters I am able to connect and successfully see the tables in my friend's machine.

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MongoChef not showing the MongoD collections

I am new to the MongoDB and MongoChef and connecting to the MongoDB server which is not local and is setup on some remote server(for which i do not require any VPN or visual network) using the MongoChef client.
When i pass the IP in the MongoChef's New Connection tab, the "Test Connection" button return all "OK" status as follows:
But in the main window of mongochef it is not showing any collection or database. Here is the screen shot:
I tried connecting to the server from the terminal and it is connecting well. I can do ping and telnet to the server well.
I am not getting where is the problem?
The problem was with the authentication, so i needed to edit the connection and add the authentication parameters viz username, password and database name as specified in the following screenshot
Making the above changes solved the issue for me. But still, i am not sure why was the previous connections giving test OK status.

Epicor and Crystal Reports

I have a connection setup to OLE DB (ADO), I try to use integrated security but in Epicor it asks for a username and password to preview the report. This only happens when I am pulling a table or a view from the SQL server that has the database. So, I tried to do an ODBC connection, now it says in Epicor that it cannot connect to the database. How do I use the OLE DB connection but not have it prompt for credentials in Epicor?
You need a report viewer, which is able to preserve the login information.
Here are links to 2 free viewers:
http://www.r-tag.com/Pages/FreeCrystalReportsViewer.aspx
http://www.groffautomation.com

Connecting MS Access to Oracle SQLDeveloper

I want connect my MS access 2003 with Oracle SQLdeveloper so that I can do analyis in SQLDeveloper. I am trying to create ODBC driver but it is not working.I am wondering if any of you send me the links or explain how can I create a ODBC connection between Access and Oracle SqL developer
Here is a short video
and a more complete example is in this article
2 ways to do it:
Long & foolproof method:
1. Below link has he Oracle Tutorial document for the Migration
https://www.oracle.com/webfolder/technetwork/tutorials/obe/db/hol08/sqldev_migration/msaccess/migrate_microsoft_access_otn.htm
Short Method (may not work always):
2. To setup a connection to MS Access in Oracle SQL Developer, from the Connections dialog, click on the green plus sign. This will open the connections dialog box.
You will see a tab that says Access right beside Oracle tab which will be selected. Click on the tab to open up the dialog to use an MS Access MDB file. Use the Browse button to locate the MDB and give it a connection name. No need to enter username.
Once connected to the MS Access database from Oracle SQL Developer, you will see the connection in the database.
You can see all the tables in the database by expanding the TABLE category of the connection.

Establishing DB2 ODBC connection

I am trying to establish a DB2 ODBC connection from my system. I installed the DB2 driver from IBM and i tried creating a system DSN. I got the following options:
Data Source Name, Database Alias (Empty Drop down along with a Add button), Description.
I do not know where to enter the IP of the server and the database name.
When i click on the Add button, I get the textboxes to enter the UserID and Password. I tried entering them and a system DSN was created. I clicked on the DSN that was created and selected Configure button, to test the connection. It asked me to enter the password. When i entered the password and clicked on Connect button, I get a message stating that SQL1013N The Database alias name or database name "" cannot be found. SQLSTATE = 42705
I am not supposed to install DB2 on my machine.
Please help me in resolving this.
Follow below steps, you will be successful in creating DSN.
1. Give DSN name in Data Source Name File (Name can be any user name eg: DSN_TEST)
2. Click in Add button
3. A new window is opened which has tabs
4. on first tab give user name and password
5. Second tab: Give database name, alias name (Preferebally give both with same name)
Host field give IP address of database server and finally Port field give port number
6. click on ok
7. Go to system DSN now double on create DSN and test connection.
8. Now your DSN got created.
Let me know if you still face any issue
Please catalog your DB2 database [DB2 catalog]
http://www-01.ibm.com/support/knowledgecenter/SSEPGG_9.7.0/com.ibm.db2.luw.admin.cmd.doc/doc/r0001936.html and then create DSN using newly added alias. Should work.
I had the same issue but fortunately stumbled upon this link which helped in detail
http://www.ryslander.com/how-to-install-and-configure-db2-odbc-driver/

MySQL Workbench GUI connection failure

I'm using MySQL Workbench to interface with a remote database. When I configure the settings for the connection and click 'Test Connection', it displays a success dialog. Furthermore, if I right click the connection and select 'Start Command Line Client', everything is golden.
However, when I click the connection to use the GUI it displays a failure dialog 'Cannot Connect to Database Server'.
How might I resolve this issue?
Can you execute following commands using MySQL command line:
SHOW CREATE TABLE mysql.user;
SHOW VARIABLES LIKE '%char%';
If you cannot execute those without any error, that means you have a permission problem with your user.
May be your problem is the same problem mentioned here http://bugs.mysql.com/bug.php?id=50024