Use Database link connect to SQL Server

I have a database link from Oracle to SQL Server using user cdit and this user connects to database "northwind".How can i get data from another database use this database link?

Just add the @<<db link name>> to the table name in your SELECT
SELECT *
FROM <<table name>>@<<db link name>>Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

Similar Messages

I want to use jdbc to connect MS SQL SERVER

hi,
I want to use jdbc to connect MS SQL SERVER,not the jdbc-odbc bridge.
I download the driver from MS,deploy it,but when I connect the database such as:
<%Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");%>
<%String sConnStr="jdbc:microsoft:sqlserver://computer2000:1433";%>
<%Connection conn=DriverManager.getConnection(sConnStr,"sa","123");%>
<%Statement stmt=conn.createStatement();%>
but it said
javax.servlet.ServletException: com.microsoft.jdbc.sqlserver.SQLServerDriver
java.lang.ClassNotFoundException: com.microsoft.jdbc.sqlserver.SQLServerDriver
how can i work out this problem
maybe my configure is wrong,please give me a successful sample configuration
thanks a lot

Hi,
I am not sure where you have got the following code from
Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
What happens here, is Java Runtime will search for the Class named:
com.microsoft.jdbc.sqlserver.SQLServerDriver
If this Class is not in the Runtime Classpath, it will throw the Error that you have got. Kindly get the proper driver as well as ensure that the Class is available in the Runtime Classpath.
Thanks and regards,
Pazhanikanthan. P

Cannot stablish a Database NEW connection with SQL Server Express 2008 R2 and Netbeans 8

Hi I appreciate it if someone could help to this case: I AM TRYING TO MAKE A CONNECTION TO MY SQL SERVER EXPRESS 2008 WITH MY NETBEANS 8 And I get ERROR ... APPARENTLY IS MY USER AND KEY BUT I AM PUTTING THE CORRECT USER AND KEY IN WHICH I CONNECT WITH MY
SQL SERVER EXPRESS 2008. I HAVE PUT IN PORT THE 1433 TCP / IP PORT. THE HOST, THE NAME OF MY DATABASE.
NO PASSING OR ERROR WHICH CAN BE ...

Hi DianaWeb,
It's glad to hear that your problem is resolved by changing the windows authentication into mixed authentication and use 'sa' user, namely an SQL Server authentication.
I believe the user name and password in the Netbean are for SQL Server Authentication to connect to SQL Server. The windows authentication you typed is not a valid SQL Server Authentication, that was why the connection failed.
In any case, if you want your J2EE project connects to SQL Server using Windows authentication(credentials of the user running Tomcat/Jboss where your application is deployed). Just build your JDBC URL like this:
jdbc:sqlserver://localhost;integratedSecurity=true;
See
Can I connect to SQL Server using Windows Authentication from Java EE webapp?
If you have any question, feel free to let me know.
Eric Zhang
TechNet Community Support

Timeout when using database link connecting to a remote database

Hi,
I have another strange problem. I have two computers A and B. Both have an Oracle database server instance. I manage the one in B (which is my local computer) but not the one in A (which is a computer where I have a user account and an Oracle account but I don't own or manage).
I tried to establish a database link on the database in B pointing to the one in A. This works.
When I try the opposite, that is, establish a database link on the database in A pointing to the one in B I cannot get it work. I can create the database link but then when I try to use it (e.g., by submitting a "SELECT") it blocks for a long time and finally returns "ORA-12535: TNS:operation timed out". I tried to execute telnet from A to B using the port of the Oracle database server in B and it seems that the connection is established. I tried something similar with tnsping but this does not work, as I get again the timeout. I tried deactivating the firewall on my computer B, but it does not work either (besides, the telnet passes through even if I have the firewall activated).
Any idea?
My TNSPING looks like this:
tnsping '(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = <the-target-ip>)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = XE)
I also tried with:
tnsping '(ADDRESS = (PROTOCOL = TCP)(HOST = <the-target-ip>)(PORT = 1521))';
I'm lost... Any ideas are very much appreciated.
Thanks!

From A to B and from B to A can you ping ... post the output surrounded by tags for formatting.
Do the same thing for TNSPING.
What do these computers have in the way of firewalls and antivirus products installed and how are they configured?

Error When Using DataBase LINK in pl/sql

I have cursor fetching some values from remote db and i m trying to store values in local table (see code below) I can run the select query alone succefully but when i use it inside plsql it fails with error.
DECLARE
TYPE MY_CURSOR
IS
     REF
     CURSOR;
          THE_CURSOR MY_CURSOR;
          V_CT          NUMBER(18);
          V_PSN_ID      VARCHAR2(30);
          V_INTERNET_ID VARCHAR2(75);
     BEGIN
          V_CT                                                                           :=0;
          OPEN THE_CURSOR FOR SELECT PSN_ID, 'TEST' FROM TABLE_A@PRO1 WHERE TABLE_A.SEQ_A<=1000;
          LOOP
               FETCH THE_CURSOR INTO V_PSN_ID, V_INTERNET_ID;
          EXIT
     WHEN THE_CURSOR%NOTFOUND;
           INSERT INTO PSN_EMAIL_SENT_TO@local
                    (PSN_ID, LAST_UPDT_DT
                    ) VALUES
                    (V_PSN_ID, SYSDATE
          V_CT:=V_CT+1;
     END LOOP;
     CLOSE THE_CURSOR;
     DBMS_OUTPUT.PUT_LINE
          TO_CHAR(V_CT)
END;
Error report:
ORA-04052: error occurred when looking up remote object TABLE_A@PRO1
ORA-00604: error occurred at recursive SQL level 1
ORA-04029: error ORA-1775 occurred when querying ORA_KGLR7_DEPENDENCIES
ORA-00604: error occurred at recursive SQL level 1
ORA-01775: looping chain of synonyms
ORA-02063: preceding 3 lines from PRO1
04052. 00000 - "error occurred when looking up remote object %s%s%s%s%s"
*Cause:    An error has occurred when trying to look up a remote object.
*Action:   Fix the error. Make sure the remote database system has run
           KGLR.SQL to create necessary views used for querying/looking up
           objects stored in the database.

You need to create the catalog views that support distributed SQL in your remote database (the database you connect to via db_link).
To create these views, connect "/ as sysdba" and run:
$ORACLE_HOME/rdbms/admin/catproc.sql
which will in turn call several other scripts including: $ORACLE_HOME/rdbms/admin/catrpc.sql (which creates your missing view)
It is best to run the whole catproc.sql script (and not just the catrpc script).
You can run and rerun catproc.sql several times quite safely.
Cheers

How to create a DSN-less connection to SQL Server for linked tables in Access

hey
i cant understand how i use that Function
if that information what you need
stLocalTableName: dbo_user_name
stRemoteTableName: user_name
stServer :sedo2015.mssql.somee.com
stDatabase :sedo2015
stUsername :sedo_menf_SQLLogin_1
stPassword :123456789
how will be that Function??
please write that Function to me
'//Name : AttachDSNLessTable
'//Purpose : Create a linked table to SQL Server without using a DSN
'//Parameters
'// stLocalTableName: Name of the table that you are creating in the current database
'// stRemoteTableName: Name of the table that you are linking to on the SQL Server database
'// stServer: Name of the SQL Server that you are linking to
'// stDatabase: Name of the SQL Server database that you are linking to
'// stUsername: Name of the SQL Server user who can connect to SQL Server, leave blank to use a Trusted Connection
'// stPassword: SQL Server user password
Function AttachDSNLessTable(stLocalTableName As String, stRemoteTableName As String, stServer As String, stDatabase As String, Optional stUsername As String, Optional stPassword As String)
On Error GoTo AttachDSNLessTable_Err
Dim td As TableDef
Dim stConnect As String
For Each td In CurrentDb.TableDefs
If td.Name = stLocalTableName Then
CurrentDb.TableDefs.Delete stLocalTableName
End If
Next
If Len(stUsername) = 0 Then
'//Use trusted authentication if stUsername is not supplied.
stConnect = "ODBC;DRIVER=SQL Server;SERVER=" & stServer & ";DATABASE=" & stDatabase & ";Trusted_Connection=Yes"
Else
'//WARNING: This will save the username and the password with the linked table information.
stConnect = "ODBC;DRIVER=SQL Server;SERVER=" & stServer & ";DATABASE=" & stDatabase & ";UID=" & stUsername & ";PWD=" & stPassword
End If
Set td = CurrentDb.CreateTableDef(stLocalTableName, dbAttachSavePWD, stRemoteTableName, stConnect)
CurrentDb.TableDefs.Append td
AttachDSNLessTable = True
Exit Function
AttachDSNLessTable_Err:
AttachDSNLessTable = False
MsgBox "AttachDSNLessTable encountered an unexpected error: " & Err.Description
End Function

thanks more thanks for you
look i add that code in form
it worked but i cant add recored why ??
Private Sub Form_Open(Cancel As Integer)
Call AttachDSNLessTable("dbo_user_name", "user_name", "sedo2015.mssql.somee.com", "sedo2015", "sedo_menf_SQLLogin_1", "123456789")
End Sub

How can i get data from another database SQL Server use database link from

I have a database link from Oracle connect to SQL Server database with user cdit connect default database NorthWind.How can I get data from another database(this database in this SQL Server use this database link)?

hi,
u should see following documentation:
Oracle9i Heterogeneous Connectivity Administrator's Guide
Release 1 (9.0.1)
Part Number A88789_01
in it u just go to chapter no. 4 (using the gateway),,u'll find ur answer there.
regards
umar

Connecting ms sql server from oracle using db link

Hi,
Source : Oracle 11g on linux
destination : ms sql server 2005
i need to create the db link from oracle to ms sql server to view the tables , is it posibble without configuring the gateways( as looks like it is licenced product)
Please let me know any alternative to achive this
Thanks
PGR

There are 2 gateway - the commercial Database Gateway for Ms SQl Server which requires a license and the Database Gateway for ODBC which is for free. The license for DG4ODBC is included in your database license. You only need to install a suitable ODBC driver on your Linux box (for example use the MS SQl Server ODBC driver for Linux - details can be found here: http://www.microsoft.com/en-gb/download/details.aspx?id=36437 ). and then configure the gateway using the My Oracle Support Note:
How to Configure DG4ODBC on 64bit Unix OS (Linux, Solaris, AIX, HP-UX Itanium) to Connect to Non-Oracle Databases Post Install
[Article ID 561033.1]
- Klaus

Error while connecting to SQL Server 2000 using Heteregenous Services 11g

Hope this is the right thread to post on! We have been given the challenge of connecting to and reading data from a SQL Server 2000 database.
Our Infrastructure guys have set up the network access.
The SQL Server DB is set to windows NT Authentication only (N.B. NOT Mixed Mode) as there is an application running against the DB locally that will not run under Mixed Mode.
Our Oracle partner has download and installed the 11g Heteregenous Services. all works fine until the point we try to create the DBLink and then connect to the SQL Server DB when we get:
SQL> CREATE DATABASE LINK infoteam1.sco.infoteam.co.uk CONNECT TO "sco.infoteam.co.uk/infoteam" IDENTIFIED BY "########" USING 'dg4msql';
Database link created.
SQL> select * from "systables"@infoteam1.sco.infoteam.co.uk;
select * from "systables"@infoteam1.sco.infoteam.co.uk
ERROR at line 1:
ORA-28500: connection from ORACLE to a non-Oracle system returned this message:
[Oracle][ODBC SQL Server Driver][SQL Server]Login failed for user
'sco.infoteam.co.uk/infoteam'. Reason: Not associated with a trusted SQL Server
connection.[Oracle][ODBC SQL Server Driver]Invalid connection string attribute
ORA-02063: preceding 2 lines from INFOTEAM1.SCO.INFOTEAM.CO.UK
The question is can we (and if so how)?) connect to the SQL Server using an NT Windows Authorised account?
Jeremy

Hi,
Please look at MOS note
ORA-28500: Generic connectivity using ODBC DSN over mapped drive fails [ID 105210.1]
Ora-28500 with Ms Sqlserver - Not associated with a trusted SQL Server connection [ID 333775.1]
Regards,
Edited by: gjilevski1 on Aug 31, 2010 8:23 AM

Problem connection to SQL Server using DG4MSQL gateway.

I am getting the following error trying to use a SQL gateway on Windows platforms:
TNSPing seems fine (which seems like listener is fine).
ERROR at line 1:
ORA-28545: error diagnosed by Net8 when connecting to an agent
Unable to retrieve text of NETWORK/NCR message 65535
ORA-02063: preceding 2 lines from DG4MSQL
The dg4msql gateway (32 bit box, 11.2.0) exists on a separate machine from the 64 bit Oracle database (10.2.0.4)
and is trying to call a MS SQL 2005 database. The listener starts and stops fine and TNSPing from the database box returns OK.
Thanks for any advice in advance and sorry for the length of the post but I tried to show all the relevant parts. I am a newbie for sure.
The Oracle_Home is on: C:\product\11.2.0\tg_1 and that is included as the first part of the path statement (C:\product\11.2.0\tg_1\bin).
LISTENER.ORA File (running on the gateway server box)
=============================
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = clickimrs.blackfoot.com)(PORT = 1521))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
ADR_BASE_LISTENER = C:\product\11.2.0\tg_1
SID_LIST_LISTENER=
(SID_LIST=
(SID_DESC=
(SID_NAME=dg4msql)
(ORACLE_HOME=C:\product\11.2.0\tg_1)
(PROGRAM=dg4msql)
initdg4msql.ORA file (exists in C:\product\11.2.0\tg_1\dg4msql\admin on gateway box)
====================================
# This is a customized agent init file that contains the HS parameters
# that are needed for the Database Gateway for Microsoft SQL Server
# HS init parameters
HS_FDS_CONNECT_INFO=[MG-FM]/MG-FM/Blackfoot_OasisFM
HS_FDS_TRACE_LEVEL=OFF
HS_FDS_RECOVERY_ACCOUNT=RECOVER
HS_FDS_RECOVERY_PWD=RECOVER
TNSMAMES.ORA (running on the database server box)
=======================================
dg4msql =
(DESCRIPTION=
(ADDRESS=(PROTOCOL=tcp)(HOST=CLICKIMRS.blackfoot.com)(PORT=1521))
(CONNECT_DATA=(SID=dg4msql))
(HS=OK)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
SQLNET.ORA (running on the database server box)
=====================================
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
My create dblink statement:
====================================
create public database link dg4msql connect to "Axiom" identified by "ax" using 'dg4msql';

listener status from listener on Gateway machine:
==============================================================
C:\Documents and Settings\tiefentr>lsnrctl status
LSNRCTL for 32-bit Windows: Version 11.2.0.1.0 - Production on 20-OCT-2010 13:24
:06
Copyright (c) 1991, 2010, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=clickimrs.blackfoot.com)
(PORT=1521)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 11.2.0.1.0 - Produ
ction
Start Date 20-OCT-2010 11:47:47
Uptime 0 days 1 hr. 36 min. 19 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File C:\product\11.2.0\tg_1\network\admin\listener.ora
Listener Log File c:\product\11.2.0\tg_1\diag\tnslsnr\clickimrs\listener
\alert\log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=clickimrs.blackfoot.com)(PORT=1521))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1521ipc)))
Services Summary...
Service "dg4msql" has 1 instance(s).
Instance "dg4msql", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
===================================================================
TNSPING from HOST machine housing Oracle DB:
C:\Documents and Settings\tiefentr>tnsping dg4msql
TNS Ping Utility for 64-bit Windows: Version 10.2.0.4.0 - Production on 20-OCT-2
010 13:20:21
Copyright (c) 1997, 2007, Oracle. All rights reserved.
Used parameter files:
C:\oracle\product\10.2.0\db_1\network\admin\sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION= (ADDRESS=(PROTOCOL=tcp)(HOST=CLICKIMRS.black
foot.com)(PORT=1521)) (CONNECT_DATA=(SID=dg4msql)) (HS=OK))
OK (60 msec)

.Using Oracle Heterogeneous Services Connectivity to SQL Server :ORA-02068

Hi,
I using oracle HS to connect sql server but error ora-02068: following server from HSSQL and ORA-03135 connection lost contact.
step by step
1. Create the init.ora file = initHSSQL.ora
HS_FDS_CONNECT_INFO = HSSQL
HS_FDS_TRACE_LEVEL = OFF
2. modified listener.ora file
SID_LIST_LISTENERHSSQL =
(SID_LIST =
(SID_DESC=
(SID_NAME=HSSQL)
(ORACLE_HOME = C:\oraclexe\app\oracle\product\10.2.0\server)
(PROGRAM=hsodbc)
LISTENERHSSQL =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC_FOR_XE))
(ADDRESS = (PROTOCOL = TCP)(HOST = CEPITA1403.siam.local)(PORT = 1521))
and start listernerHSSQL = pass
3.modified tnsname.ora :
HSSQL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = CEPITA1403.siam.local)(PORT = 1521))
(CONNECT_DATA =
(SID = HSSQL)
(HS = OK)
and test by tnsping HSSQL = OK
4.setup ODBC SQL Server
Start --> Control Panel --> Administrative Tools --> Data Sources (ODBC)
Click on the ‘System DSN’ tab.
Click ‘Add’.
Name HSSQL
Click ‘Test Data Source…’.--> Pass
5
create public database link HSSQL
connect to sa
identified by xxxxxxxx
using 'HSSQL';
Database Link created.
6. select * from ACCOUNT_CODE@HSSQL;
show error message : ora-02068: following server from HSSQL and ORA-03135 connection lost contact.
Please let me know.
rose
Edited by: user7218901 on Mar 25, 2009 12:39 AM

Do you have all of your parameter files set up correctly?
You need to have a hsora file in the hs/admin directory for ioi for instance, initioiDB.ora. In this file you need to set up your hs init parameters. This is an example of what's in one of mine:
HS_FDS_CONNECT_INFO = Mapics
HS_DB_NAME = MAPICS
HS_DB_DOMAIN = WORLD
HS_FDS_TRACE_LEVEL = ON
The you need to have an entry in the tnsnames.ora file in the network/admin directory for hsodbcxtrad. The sid should be set to ioiDB.
You can find documentation on how to manage heterogenous services in the online documentation.
Managing Heterogenous Services Using Generic Connectivity
Hope this helps
Eric
I have been trying to set up a database link between Oracle and SQL Server, currently both on the same Windows NT machine.
I managed to create the link as follows:
CREATE PUBLIC DATABASE LINK ioi
CONNECT TO IOItest IDENTIFIED BY mba
USING 'hsodbcxtrad';
The link is created successfully.
I then try to run a query and get the following error :
select * from dealer@ioi
ERROR at line 1:
ORA-28500: connection from ORACLE to a non-Oracle system returned this message:
[Generic Connectivity Using ODBC]DRV_InitTdp: [Microsoft][ODBC SQL Server
Driver][SQL Server]Login failed for user '\'. (SQL State: 28000; SQL Code:
18456)
ORA-02063: preceding 2 lines from IOI
I have added a UID and PWD to the registry settings for the SQL Server DSN but this makes no difference. Do I need to specify a username and password somewhere else ?
Thanks
Hugh

How can i connect to SQL Server 7.0 on Windons Using JDBC

How can i connect to Microsoft SQL Server 7.0 on a windows enviroment ?
in sql server 2000 some jar files are required that is
What you need to do is actually add all three jar files to your class path individually. There are three jar files that come with this driver the msbase.jar, msutil.jar, and mssqlserver.jar. for sqlQ server 2000.
now the problem is that i cant find these files on my system. firstly where these files will be located. secondly are they will be used to connect to SQL Server 7.0. thirdly if not what is the procedure.
My next Problem is that I have Websphere Studio Application Developer. in which their is this facility of Database Webpages its like a wizard which makes automatically beans servlets and JSP but before that you need a Driver Name and and Class Name for to Connect to the Database.
Can you tell what is the specific Driver Path for the Microsoft SQL Server 7.0 . secondly is this the class which is used to connect to SQL server 7.0 "com.microsoft.jdbc.sqlserver.SQLServerDriver" where can i find this one. for SQL server 7.0.
please provide some guidance in this regard.

You can search for the JDBC drivers at, http://industry.java.sun.com/products/jdbc/drivers
All the three jars that you specified are part of MsSQL Server jdbc driver. You need them (in the classpath) to get connected to the database.
"com.microsoft.jdbc.sqlserver.SQLServerDriver" is the class in mssqlserver.jar. This is the driver class which will be used to get connected to the database.
You can search in this forum for writting jdbc code (for Sql Server). If you don't find these jars, give me your e-mail id.
Sudha

How do i connect to sql server using java?

hi ever body
i need to connect to sql server using java
what is the driver i will use?
thanks

Microsoft make a jdbc driver and it is readily available through MSDN. Here is a link http://msdn2.microsoft.com/en-us/data/aa937724.aspx. Whatever jdbc driver you are looking for, Google it, and if it exists you'll find it in 10 seconds.

Sql developer won't connect with SQL server database on cluster

Hello,
I have a microsoft SQL server database on a windows cluster. Name for this cluster is like XXX/YYY
When I try to connect to this database with SQL developer, I get a failure, mentioning:
"Status : Failure -Cannot connect to Miscrosoft SQL Server on XXX/YYY"
As far as I know, I have installed the correct jtds driver (version 1.2.5), since I can connect to sql server databases on single server hosts.
Does anyone know how to connect to databases on windows clusters?
Edited by: Ingmar on Jan 16, 2012 4:08 PM
Edited by: Ingmar on Jan 16, 2012 4:22 PM

Hi Ingmar,
Try this is in the port box
1433/dbname;instance=YYY
dbname can be omitted
-Turloch
SQL Developer team
1/Giving an instance name in SQLDeveloper connection to SQL Server (from August 2011)
MS SQL Server Connection
The correct syntax to deal with this is in the port box
1433/dbname;instance=instance
dbname can be omitted
2/cluster configuration (uses instance name)
http://stackoverflow.com/questions/1160024/jdbc-connect-string-for-sql-server-cluster
where vvv\iii is the cluster address: jdbc address is:
"jdbc:sqlserver://vvv;instanceName=iii"
3/jtds url details available in
http://jtds.sourceforge.net/faq.html

Unable to connect to sql server database

i run on CMD:
aspnet_regsql -C "Data Source =Davidchamoun/sqlexpress : intergrated security= true" -ssadd -sstype p
i got
a network-related or instance-specific error occurred while establishing a connection to sql server. the server
was not found or was not accessible. verify that the instance name is correct and that sql server is configured to allow remote connections. (provider: SQL Network interfaces . error: 25 – connection string is not valid
unable to connect to sql server database.
im using sql sever 2012 express, microsoft visual studio web 2008 express.
please help me.

i run it as :
aspnet_regsql -C "Data Source =Davidchamoun\sqlexpress : integrated security= true" -ssadd -sstype p
i got the same error :
an error has occurred . details of the exception:
a
network-related or instance-specific error occurred while establishing a connection to sql server. the server was not found or was not accessible. verify that the instance name is correct and that sql server is configured to allow remote connections. (provider:
SQL Network interfaces . error: 25 – connection string is not valid
unable to connect to sql server database.
im using also windows 8.1
pls help me
ty for ur reply

Use Database link connect to SQL Server

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