SP2-0640: not connected - create database link error Gateway

Similar Questions

• Create database link between two databases?

  Hi all
  
  Can someone tell me how to do?
  
  I have two databases in oracle 9i: 'mydb' & 'mydb1 '.
  
  mydb contains a table 'tab1' with a single domain (of the int data type) and mydb1 contains a table "tab2" with two fields (int, char).
  
  I tried to do this:
  
  System is one of the usernames and another username is olapsys
  Manager is the password of the system, and olapsys got the password = myolapsys
  
  I tried to create a link, but it gave me an error:
  
  CREATE DATABASE LINK mylink access the system identified by the Manager using "mydb.tab12";
  
  then I tried running this query in olapsys:
  
  Select * from tab12@mylink;
  
  Error:
  ORA-12154: TNS: could not resolve service name
  
  Help, please.
  
  Thank you and best regards,
  
  Lucky

  CREATE DATABASE LINK mylink to connect to the system identified by the Manager using "local service alias ';

  where local service alias is the name of the local service that you configured in the tnsnames.ora to connect to mydb1.

• Failed to create database link when the password has a special character

  I am trying to execute the following statement in sqlplus
  
  create alpha link database to connect to scott identified by tiger! using "db_alpha".
  
  Note that the password of the account has an exclamation mark inside. the command fails. I tried to put the password in quotation marks (') and double quotes (""). Working the double quotes, but then the link does not work properly.
  
  We are required to have a special character in our passwords... so, how can I get this special character in the password for the database link?
  
  Thanks in advance,
  Darren

  Darren2 wrote:

  #2 attempt:

  SQL > create database link BLAH connect to user2 identified by 'tiger!' using 'BLAH ';

  Created database link

  SQL > salt {color: black} {color} ect {color: black} {color} * en {color: black} {color} om my{color:black}{color}_{color:black}{color}table{color:black}{color}@BLAH;
  Salt {color: black} {color} ect * en {color: black} {color} om my{color:black}{color}_ta{color:black}{color}ble{color:black}{color}@BLAH
  *
  ERROR on line 1:
  ORA-02085: link on the database of BLAH. AAA. BB. CCC. DDD connects to
  DEVDB. AAA. BB. CCC DDD.

  For me, that makes no sense. If the link does not work... How did get the "invalid username/password" in the #1 attempt?

  Learn about the GLOBAL_NAMES initialization parameter. Default GLOBAL_NAMES = TRUE, which means the database link is required to have the same name as the database in which it connects. Database name DEVDB link or define GLOBAL_NAMES = FALSE:

  SQL> create user Darren2
    2  identified by "tiger!"
    3  default tablespace users
    4  quota unlimited on users
    5  /
  
  User created.
  
  SQL> grant create session to Darren2
    2  /
  
  Grant succeeded.
  
  SQL> create table Darren2.tbl as select 'Darren2' name from dual
    2  /
  
  Table created.
  
  SQL> create database link sol10@Darren2
    2  connect to Darren2
    3  identified by "tiger!"
    4  using 'sol10'
    5  /
  
  Database link created.
  
  SQL> create database link sol11@Darren2
    2  connect to Darren2
    3  identified by "tiger!"
    4  using 'sol10'
    5  /
  
  Database link created.
  
  SQL> select  *
    2    from  tbl@sol10@Darren2
    3  /
  
  NAME
  -------
  Darren2
  
  SQL> select  *
    2    from  tbl@sol11@Darren2
    3  /
    from  tbl@sol11@Darren2
              *
  ERROR at line 2:
  ORA-02085: database link SOL11.REGRESS.RDBMS.DEV.US.ORACLE.COM@DARREN2 connects
  to SOL10.REGRESS.RDBMS.DEV.US.ORACLE.COM
  
  SQL> select value from v$parameter where name = 'global_names'
    2  /
  
  VALUE
  --------------------------------------------------------------------------------
  TRUE
  
  SQL> select * from global_name
    2  /
  
  GLOBAL_NAME
  --------------------------------------------------------------------------------
  SOL10.REGRESS.RDBMS.DEV.US.ORACLE.COM
  
  SQL> alter session set global_names=false
    2  /
  
  Session altered.
  
  SQL> select  *
    2    from  tbl@sol10@Darren2
    3  /
  
  NAME
  -------
  Darren2
  
  SQL> select  *
    2    from  tbl@sol11@Darren2
    3  /
  
  NAME
  -------
  Darren2
  
  SQL> 
  

  I don't have two databases, so in my sol10 database I create two database links sol10@Darren2 and sol11@Darren2 both pointing to itself (back to sol10 database). That's why I use qualifiers link db. The two links you connect as a Darren2 user with password Tiger!. The global database name is sol10 and initialization of setting global_names = true. As you can see what global_name (sol10) corresponds to the name of the link in sol10@Darren2 db (again, the link name is sol10 and Darren2 is qualifying link) select vai db link works OK. But the sol11@Darren2 link fails because the name sol11 link does not match the name db global sol10. However, as soon as I change global_names false, sol11@Darren2 works fine. It will be useful.

  SY.

  Published by: Solomon Yakobson on January 1st, 2009 08:41

• ORA-01017: name of user and password invalid. connection refused - Database Link

  Hi guys,.
  
  Could you help me, I have a problem connecting to a different database using the database link:
  
  * 1. I have added in the database 'customer' DEV2 tnsnanes.ora *.
  
  DEV =
  + (DESCRIPTION = +
  + (ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.100.85)(PORT = 1521)) +.
  + (CONNECT_DATA = +
  + (SID = DEVDB) +.
  +)+
  +)+
  
  * 2. I tested my connection using tnsping *.
  
  Oracle@dev > tnsping dev
  
  AMT Ping utility for Linux: Version 10.2.0.1.0 - Production on July 10, 2010 14:35:35
  
  Copyright (c) 1997, 2005, Oracle.  All rights reserved.
  
  Use settings files:
  +/opt/Oracle/product/10.2/Db_1/network/admin/SQLNET.ora+
  
  
  TNSNAMES adapter used to resolve the alias
  Try to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.100.85)(PORT = 1521)) (CONNECT_DATA = (SID = DEVDB)))
  OK (0 msec)
  Oracle@dev >
  
  * 3. In SQLPLUS of DEV2 I connect to my database using the tnsnames entry *.
  
  SQL > conn devuser/pwd001@dev
  Connected.
  
  * 4. I then create a database of link.*
  
  SQL > Create Database Link dev_Link
  + 2 Connect devuser +.
  + 3 identified by pwd001 +.
  + 4 using "DEV"; +
  
  Database link created.
  
  SQL >
  
  * 5. When I try to connect to the database using the database link, I get an error, but I'm sure that the password and user name are ok.*
  
  SQL > select * from global_name@dev_link;
  Select * from global_name@dev_link
  *+
  ERROR on line 1:
  ORA-01017: name of user and password invalid. connection refused
  ORA-02063: preceding the line of DEV_LINK
  
  
  SQL >
  
  
  What could be wrong...?

  Try to connect to the database via SQLPlus target using the tnsnames.ora entry: sqlplus bob@remote.

  If the target db is 11g, then breaking the password may be the matter. Try placiing the password in quotes when you create the database link.

  HTH - Mark D Powell.

• I use MSN Explorer to my email. It does not connect and I get error code ox80072eff

  I use MSN Explorer to my email.  It does not connect and I get error code ox80072eff.  What can I do to fix this?

  Hi JoshKimbell,

  Please see the next Windows Live Forums thread:

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  Thank you!

• Error creating database link!

  Dear all,
  
  I'm in a strange problem to connect to the database between the RAC and single Instance database. The two databases are 11 GR 2 and on Linux platform.
  
  On a database that is CARS, my settings are as follows:
  
  view the global_names parameter.
  Value = TRUE
  
  Select Rename global_name;
  RACDB. DOMAIN.COM
  
  Although I ran the race:
  ALTER DATABASE RENAME GLOBAL_NAME to RACDB and bounce the database after this command, but still it shows RACDB. DOMAIN.COM
  
  When I see the db_domain parameter
  Value = (NULL)
  
  tnsnames.ora is
  
  GGBKP =
  (DESCRIPTION =
  (ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.20.182)(PORT = 1521))
  (CONNECT_DATA = (SERVICE_NAME = GGBKP))
  )
  
  
  On the other server, my settings are as follows:
  
  view the global_names parameter.
  Value = TRUE
  
  Select Rename global_name;
  GGBKP
  
  When I see the db_domain parameter
  Value = (NULL)
  
  tnsnames.ora is
  RACDB =
  (DESCRIPTION =
  (ADDRESS = (PROTOCOL = TCP) (HOST = 192.168.20.29)(PORT = 1521))
  (CONNECT_DATA = (SERVICE_NAME = RACDB))
  )
  
  
  OK, now when I create the link DB from one server to another by using the command:
  
  Server a
  
  create database GGBKP link to connect to streamadmin identified by streamadmin using 'GGBKP ';
  
  and run this query
  
  Select sysdate dual@GGBKP it gives an error:
  ORA-02085: database link GGBKP. DOMAIN.COM will connect to GGBKP
  
  
  the second server
  
  SQL > create database RACDB link to connect to streamadmin identified by streamadmin
  2 using "RACDB;
  
  Database link created.
  
  SQL > select sysdate dual@RACDB;
  Select sysdate from dual@RACDB
  *
  ERROR on line 1:
  ORA-02085: database RACDB link connects to the RACDB. DOMAIN.COM
  
  Where is the problem in the settings and how to get rid of this problem. I have to keep the overall name of TRUE because replication streams.
  
  Kind regards
  Imran

  Probably that does not help.
  The problem is on the server 1, Server 2 is OK and works as expected.
  For some strange reason, server 1 still picks up "domain.com".

  At this point, I would probably question sys.props$ (where it is stored) or consult the global_names view definition.
  I would not immediately update sys.props$ with the correct value.

  I would also like to run lsnrctl services: if properly configured global_name and service_name in lsnrctl match.

  ------
  Sybrand Bakker
  Senior Oracle DBA

• A question about the CREATE DATABASE LINK PUBLIC and ORA-12154 error

  Hi all
  
  
  I have a problem on the public database link creation and I would be grateful if you could kindly give me a helping hand. I have the following connection settings in my
  tnsnames.ora file:
  

  ...
  DGPAPROD.WORLD = 
       (DESCRIPTION = 
         (ADDRESS_LIST = 
          (ADDRESS = (COMMUNITY=tcp.world)
            (PROTOCOL=TCP)(HOST=ORASR001)(PORT=1521)
           ) 
         )
         (CONNECT_DATA = (SID = DGPAPROD))
      )
  ...

  Having the above mentioned parameters, I can connect to this remote database directly in a SQL * more shell:

  $ sqlplus username/[email protected]

  It works pretty well and the connection is established without any problem.
  
  Now, what I want to do is to create a public database of this remote database link to avoid the user/connection of switch for the visualization of the
  the content of this database. I proceeded in line with the syntax indicated in the Oracle online documentation:
  
  http://download.Oracle.com/docs/CD/B28359_01/server.111/b28286/statements_5005.htm#SQLRF01205
  
  This is why I run the following to create a public database link

  CREATE PUBLIC DATABASE LINK SR001_dblink CONNECT TO user IDENTIFIED BY password USING 'DGPAPROD.WORLD';

  Apparently there is no error and the link is created successfully. However, it cannot resolve the remote host and every time I run this query
  (myenterprise is the name of a table in the remote database)

  SELECT *
  FROM myenterprise@SR001_dblink
  
  ERROR at line 1:
  ORA-12154: TNS:could not resolve the connect identifier specified

  What causes this problem?
  
  Thanks in advance,
  
  
  Kind regards
  Dariyoosh

  You must have defined DGPAPROD. WORLD in tnsnames.oar on the server where DB is runnig.

• Public connected user database link creation

  Hello, DBA
  
  I tried to create the user database link connected audience.
  I have two databases (orcl, orcltest)
  
  Orcltest database, I created dblink
  
  SQL > grant create public database to u1 link;
  Grant succeeded.
  
  SQL > conn u1
  Enter the password:
  Connected.
  
  SQL > create sequoia link of public database using "orcl".
  Database link created.
  
  
  In orcl, I tried to access
  
  SQL > select * from u1.tab1@redwood;
  Select * from u1.tab1@redwood
  *
  ERROR on line 1:
  ORA-02019: description of the connection to the remote database not found
  
  QUESTION: what is the error?
  Note: tns, earphone works very well. No problems.
  Prod: 1 0.2.0.4.0
  OS: rhel 5.1
  
  Thanks in adnvance...

  Hello

  Orcltest database, I created dblink

  SQL > grant create public database to u1 link;
  Grant succeeded.

  SQL > conn u1
  Enter the password:
  Connected.

  SQL > create sequoia link of public database using "orcl".
  Database link created.

  Here, you create a DBLINK on the ORCLTEST to the ORCL database, sort of source database is ORCLTEST and target is ORCL.

  In orcl, I tried to access

  SQL > select * from u1.tab1@redwood;
  Select * from u1.tab1@redwood
  *
  ERROR on line 1:
  ORA-02019: description of the connection to the remote database not found

  It will not work because you created the dblink on the source database, which is ORCLTEST.

  DBLINKS give you a way to access resources (tables, indexes, packages, etc.) in a remote database.

  What you do is:

  1. create a dblink on ORCLTEST. This dblink will provide access to ORCL via the ORCLTEST.

  2 instead of this, you you connect directly to ORCL. That won't work, your DBLINK is not here, you can create another one here pointing to the ORCLTEST.

  DBLINKS act as a bridge, a connection between two databases. They are only available in the source database to create a link to a database remotely (target).

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