I need to do a select on a number in Database A.Table A and also check if this Number exists in Database B.Table A
So far I have tried
select ID from Table A where ID in (select ID from UN/PW#//host:1521/SID.Table A)
I have no idea if this is the correct syntax.
I am currently writing this in Oracle Developer and then adding it to my perl code using DBI and DBD Oracle.
Help appreciated thanks.
Solved using CREATE DATABASE LINK
Open two separates DB connection which will point you to two different databases, then use first connection to obtain value from database A and second connection from database B, at the end compare what you got in PERL. In order to be able to query two different databases in a one query you need to use db link. Check this tutorial: http://docs.oracle.com/cd/B28359_01/server.111/b28324/tdpii_distdbs.htm#BABJDEED
Related
I have an external data source created in DB1 and its pointing to DB2 database in Azure.
I want to query a UDF defined in DB2 from DB1.
Following syntax works, from DB1:
EXEC sp_execute_remote
N'Ext_DB2',
N'SELECT Result'
But I want to use following syntax:
select C1, C2, < function_in_DB2 >
from t1
I tried searching web, this format is not mentioned anywhere, is it not supported? Any pointers will help.
Thanks !
Just per my experience, I think Azure SQL database doesn't support it. As we know, we can't do cross database query directly.
Since none document talk about this, I would suggest you ask Azure SQL support to get more support, ref: How to create an Azure support request.
Hope this helps.
I am new to this forum and already searched for 45 minutes to find a solution for my problem. I hope you can help me.
A Gateway to a remote Microsoft SQL Database was installed on a Oracle Server (Oracle 12c). The tsnnames.ora file was appropiately set up.
For the connection, I created a database link (In the Oracle DB) as follows:
CREATE DATABASE LINK TEL CONNECT TO "fb_B2C" IDENTIFIED BY "passwort" USING 'dg1msql';
When I now execute the Select statement:
SELECT "name" FROM "sys"."databases"#TEL
it shows me the according databases. Among others, I can see the AB_Colors database.
Now, I want to select a view in the AB_Colors database.
Due to the fact I can connect to this database via Excel, I know that in the database AB_Colors, there are 10 Views(A,B,C,..). I would like to select the View C from the database AB_Colors via the DB LInk.
Owner of the View is b2b.
How do i need to formulate the select statement to do it?
I already tried different writings:
SELECT * FROM b2b.C#TEL;
SELECT * FROM "AB_colors"."b2b"."C"#TEL;
SELECT * FROM [AB_Colors].[b2b].[C]#TEL;
The common error message is: View/Table does not exist
I highly appreciate your help,
Fedja
This is the correct format
SELECT * FROM "b2b"."C"#TEL;
The issue maybe because the database you want to select from is not the one specified in the gateway for dg1msql. You can't add the database name to the query so you must specify it in the gateway connection.
This is defined in
$ORACLE_HOME/dg4msql/admin/initdg4msql.ora
where you should check HS_FDS_CONNECT_INFO
I have two databases DB1 and DB2 and I want to call a stored procedure in DB1 and get data from DB2.
Create procedure diffdbtest()
LANGUAGE SQL
DYNAMIC RESULT SETS 1
BEGIN
DECLARE C1 CURSOR WITH RETURN FOR
SELECT * FROM Db2.myschema.tabletest;
OPEN C1
END#
I get Db2.myschema.tabletest is not defined.
Both DBs have the same user and password (if possible how can I use different users?)
Any idea what is wrong?
Running DB2 Express v10.5 Windows
Thanks.
The only way as far as I know is you have to use federation. You need to:
create server wrapper to DB #2
create nickname on table that is referring the table tabletest
create user mapping
etc.
Then, you can access that table via nickname.
Details on how to do this can be found in knowledge center: https://www.ibm.com/support/knowledgecenter/en/SSEPGG_11.1.0/com.ibm.data.fluidquery.doc/topics/tlsdb201.html
Hope this helps.
Kevin See
Db2 Hybrid Cloud Security Dev Team
We've two SQL server database. The source server has data populated from an external system and a destination database on a remote server (used by a web app). There's an SSIS package which maps column from source tables to destination (column names differ) and populates data to maintain the sync.
Now, to ensure that both the database are in sync for which we've an SP which shows record count and for some parent-child relationships it shows child count for each parent record (i.e. Brandwise Item count). Someone has to logon to both the servers, execute the SP and get the data manually. Then compare the results to ensure that both the db are in sync.
Now, to automate this process, we've done the following-
Add the destination server as a "Linked Server"
Use "EXEC msdb.dbo.sp_send_dbmail" along with "#attach_query_result_as_file =1"
Create an SSIS job which will execute the email SP for both the servers
So, this is how we get two emails which has query results attached to
it. And then comparing the text files completes the db sync check.
I believe this can be made better - now that we're able to access the destination server as a linked server. Its my first time so I'd request some experienced guys to share their approach, probably something beyond a join query with the linked server.
Since you have access to server as Linked server you can directly run query and compare data.
Please check this
You can modify SSIS jobs to send mails based on this query result.
I'm using the following query which is a simple version and gives me differences of both the sides -
(Select s.Title, s.Description from ERPMasterBrand as s EXCEPT
Select d.Title, d.Description from MasterBrand as d)
UNION
(Select s.Title, s.Description from MasterBrand as s EXCEPT
Select d.Title, d.Description from ERPMasterBrand as d)
Any better suggestions? I've tested and it gives desired results - hope I'm not being misguided :-) by my own solution.
I'm fairly new to SQL Server. I have done basic admin, backups etc. I have also spent 2 years doing MySQL for a software company offering software support for their MySQL bespoke program. I'm mainly a tech guy (desktop, Networking) but getting my head round this DB stuff!
I have started with a company that run SQL Server 2005 and need some stuff doing, and I am struggling with the syntax more than anything. The company have 4 SQL Servers running the same db's (program wise) for 4 differing locations.
What I am trying to do is copy the updated cost price list from table 1 to the other tables with * criteria. Basically copy table.parts from server1.parts to server2.parts * currencyconvertion field * markup (%)
That bit seems to be quite easy except I cannot get the db's to link. I enter the server name which contains - and the syntax says wrong eg uk-server1 'can't find 'uk'? Also I am unsure in the 4 part address is correct servername, dbname, schema, table?
Right ok. Previously when tried I was unable to link the two servers. I have now resolved this and the server is now linked. I have been told that maybe there is a need for [] to quote'' server name. I have tried this with no success. The problem seems to be the name of the server having a - uk-efacs. as soon as I type this and remember it is now linked the herror is can't find server efacs an uk is wrong?? It's not ready the full server name? WHY?
Figured this out by trial and error just needs [] by server name ie [uk-efacs].db.table.field. This now is ok just need to work on my syntax as the query shows errors.
Try creating a Linked Server record on the server you're running this from. In Object Explorer (in SSMS) expand Server Objects, right click Linked Servers and select new. Select SQL Server and type the name of your remote server and then try your query again. Bit puzzled as the snippet you provided
update partmaster
set partmaster.fsunit = uk-efacs.efacsdb.partmaster.fsunit * uk-efacs.efacsdb.currency.currate * 1.32
Seems to parse just fine.