we are currently retrieving data from our SQL Database for various purposes.
But we are shifting our Sql Database to a new Server. I need to change the Server link to the new server. I have tried changing the Server name in the Connection String at the Connection Properties window. But it doesnt work.
I have given the Connection Type Connection String details below for your reference.
The Server Name given in he below settings are Jr-erpsrv-02. I need to change this to Jr-erpsrv-03.
1) Connection Type : Database Query
DRIVER=SQL Server;SERVER=JR-ERPSRV-03;UID=Shakila;Trusted_Connection=Yes;APP=Microsoft Office XP;WSID=YFHO-WKSTATION
2) Connection Type : Database Query
DSN=Syspro;Description=Syspro;UID=ramya;Trusted_Connection=Yes;APP=2007 Microsoft Office system;WSID=ITSYSPRO-NB;DATABASE=SysproDSPL
3) Connection Type : Office Data Connection
Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist Security Info=True;Initial Catalog=SysproDSPL;Data Source=JR-ERPSRV-02;Use Procedure for Prepare=1;Auto Translate=True;Packet Size=4096;Workstation ID=ACIT-PC1;Use Encryption for Data=False;Tag with column collation when possible=False
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I'm attempting to connect to a new Aurora PostgreSQL instance with Babelfish enabled.
NOTE: I am able to connect to the instance using the pg library through the normal port 5432 (the Postgres TDAS endpoint).
However, for this test, I am attempting to connect through the Babelfish TDS endpoint (1433) using the standard mssql package.
If I specify a database name (it is correct), I receive the error 'database "postgres" does not exist':
var config = {
server: 'xxx.us-east-1.rds.amazonaws.com',
database: 'postgres',
user: 'xxx',
password: 'xxx'
};
and the connection closes since the connection fails.
if I omit the database property in the config, like:
var config = {
server: 'xxx.us-east-1.rds.amazonaws.com',
user: 'xxx',
password: 'xxx'
};
It will connect. Also, I can use that connection to query basic things like SELECT CURRENT_TIMESTAMP and it works!
However, I can't access any tables.
If I run:
SELECT COUNT(1) FROM PERSON
I receive an error 'relation "person" does not exist'.
If I dot-notate it:
SELECT COUNT(1) FROM postgres.dbo."PERSON"
I receive an error "Cross DB query is not supported".
So, I can't connect to the specific database directly and if I connect without specifying a database, I can't cross-query to the table.
Any one done this yet?
Or, if not, any ideas on helping me figure out what to try next? I'm out of ideas.
Babelfish databases (that you connect to on port 1433) have nothing to do with PostgreSQL databases (port 5432). Essentially, all of Babelfish lives within a single PostgreSQL database (parameter babelfishpg_tsql.database_name).
You seem to have a single-db setup, because Cross DB query is not supported. With such a setup, you can only have a single database via port 1433 (apart from master and tempdb). You have to use CREATE DATABASE to create that single database (if it isn't already created; ask sys.databases).
I can't tell if it is supported to create a table in PostgreSQL (port 5432) and use it on port 1433 (the other way around is fine), but if so, you have to create it in a schema that you created with CREATE SCHEMA while connected on port 1433.
The answer was that I should be connecting to database "master".
Even though there is no database titled master in the instance, you still do connect to it.
Once connected, running the following:
select current_database();
This will indicate you are connected to database "babelfish_db".
I don't know how that works or why a database would have an undocumented alias.
The bigger answer here is that cross-DB object references are not currently supported in Babelfish, outside your current SQL Server database.
This is currently being worked on. Stay tuned.
I'm relatively new to working with remote IBM databases. I am connecting to a remote IBM AS400 database using an ODBC Python3 connector in an Anaconda virtual environment on Windows 10. My connection that successfully works is:
import pyodbc
connection = pyodbc.connect(
Driver='{iSeries Access ODBC Driver}',
System='<host>',
database='<database>',
uid='<username>',
pwd='<password>')
c1 = connection.cursor()
print('Connection established')
After connecting I run this command to see the list of tables:
c1.execute("select table_name from sysibm.sqltables")
And I see all the tables that I would need to query. But then when I try to query the contents of a specific table using:
c1.execute("select * from <database>.<table> LIMIT 100")
I get an error:
ProgrammingError: ('42S02', '[42S02] [IBM][System i Access ODBC Driver][DB2 for i5/OS]SQL0204 - <table> der Art *FILE in <database> nicht gefunden. (-204) (SQLExecDirectW)')
(It's in German, it means table of type *FILE in database not found)
(And I'm not using angle brackets, it's just for demonstration)
But a software like DBeaver returns valid data for both of them, for the tables list query and the specific table query. It's only python that gives the error.
Can anyone point out what could I be doing wrong? Or what can I run to pinpoint the problem?
<database>.<table> is not correct.
On Db2 you have
database
-schema
--table
you should be using <schema>.<table> as the database has been specified in the connection string.
<database>.<schema>.<table> is supported when connecting to a remote database from the "local" one...but only for basic selects. Db2 for IBM i doesn't support for example joining between a "local" and remote table.
I want to import some data to Excel2016 from a postgresSQL table. I have tried it by clicking "new query" and selecting From Database -> From PostgresSQL Database:
But then I receive the following error:
Details: "TlsClientStream.ClientAlertException: CertificateUnknown: Server certificate was not accepted. Chain status: A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider.
. The specified hostname was not present in the certificate.
at TlsClientStream.TlsClientStream.ParseCertificateMessage(Byte[] buf, Int32& pos)
at TlsClientStream.TlsClientStream.TraverseHandshakeMessages()
at TlsClientStream.TlsClientStream.GetInitialHandshakeMessages(Boolean allowApplicationData)
at TlsClientStream.TlsClientStream.PerformInitialHandshake(String hostName, X509CertificateCollection clientCertificates, RemoteCertificateValidationCallback remoteCertificateValidationCallback, Boolean checkCertificateRevocation)"
Any suggestions on how to solve this? Thank you so much in advance!
This error is indicative of a connection being made to the PostgreSQL db where the server's certificate cannot be validated by the client making a connection. This error only happens when the "Trust Server Certificate" is set to FALSE in the library Excel uses to connect to PostgreSQL (npgsql).
There are several ways that may work to address this, in the order I'd suggest trying them:
If there's an option hidden in Excel (perhaps under advanced options or similar) to set the 'Trust Server Certificate' parameter to True, then your connection will start working. If it allows you to specify an entire connection string, then this can be done in the connection string as well.
The database should have a public key in an SSL cert listed in the postgresql.conf file for the db. If you (or your db administrator) can get that public key and add it to your machine (instructions will vary depending on your operating system).
I have finally found a workaround for my problem.
What you can do is to:
Install the current postgresql driver from here
Follow the instruction from this video
With this, you can connect to your postgreSQL database by ODBC.
I'm trying to connect to an Oracle Database from an Excel application and whithout a DNS. I found on a website that it's possible to use ADO, so this is why I tried to do. I'm new to this so I juste copied what I found on this website.
Here is my code so far :
Sub ADOtest()
Dim connection As New ADODB.connection
connection.ConnectionString = "UID = user1; PWD= my_pwd; DRIVER = {Microsoft ODBC for Oracle; Server= localhost; Database= orcl.my_domain;"
connection.Open
End sub
When I run this code, I get an error saying that the driver was not found.
The problem is that I have no idea of what I have to do with the driver (how to install it and configure it). Plus, I don't know which one I should use : I've read that there is a driver from Microsoft, another one from Oracle and also I've seen something about providers like msdaora.
The program will be used by many users, so I would like to choose the solution that is the lightest (not much to install on computers).
Thank you !
For COM based ADO (ADODB) you can use the OLE DB Providers.
One is from Oracle, called "Oracle Provider for OLE DB". You can download it from 32-bit Oracle Data Access Components (ODAC) and NuGet Downloads (assuming your Excel is 32-bit). The connection string would be
"Provider=OraOLEDB.Oracle;Data Source=orcl;User ID=myUsername;Password=myPassword"
The other one is from Microsoft. Please note, this provider is deprecated, you should not use it for new projects. Usually it should be available on your Windows. Be aware, like the provider from Oracle it also requires an Oracle Client to be installed on the PC! The connection string would be
"Provider=MSDAORA;Data Source=orcl;User ID=myUsername;Password=myPassword"
The data source is usually defined in tnsnames.ora file or at a LDAP server, for example:
orcl.my_domain =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(Host = localhost)(Port = 1521))
(CONNECT_DATA =
(SERVICE_NAME = orcl)
)
)
If you don't have such entry you can put everything into the connection string, e.g.
"Provider=OraOLEDB.Oracle;Data Source=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(Host=localhost)(Port=1521))(CONNECT_DATA=(SERVICE_NAME=orcl)));User ID=myUsername;Password=myPassword"
Perhaps you have to enclose the data source value by double-quotes ("), I am not sure.
So, in any case you would have to install an Oracle Client at all PC's.
Where is your database server hosted? In your question you say Server=localhost;, this would be quite unlikely, i.e. it is in contradiction to The program will be used by many users. I doubt everybody has an Oracle Database server installed on his local host.
I try to connect my c# application to sql server 2012
my connection string is
connectionString="Server=.\MSSQLSERVER; Database=|AppData|\TechnicalOfficeManagerDB.mdf; Trusted_Connection=True;"
the application raise exception said
the value's length for key exceeds it's limit of '128' and don't connect to sql server
I don't understand what is the problem?
Please have a look this website : http://www.connectionstrings.com/
There is an example here : http://www.connectionstrings.com/sql-server-2012/
Server=.\SQLExpress;AttachDbFilename=|DataDirectory|mydbfile.mdf;Database=dbname;
Trusted_Connection=Yes;
Try removing "\" after AppData
connectionString="Server=.\MSSQLSERVER; Database=|AppData|TechnicalOfficeManagerDB.mdf; Trusted_Connection=True;"