In our system, we need to execute queries using linked servers. However, the linked server name is not well known, it is a value stored in the system. Is there a way this can be done?
CREATE FUNCTION dbo.stfGetSupervisorOrgUnitAssignments(@SupervisorID INT)
RETURNS @ReturnTable TABLE(Org_Unit INT PRIMARY KEY)
AS
BEGIN
DECLARE @Server VARCHAR(100)
SELECT @Server = dbo.stfGetLinkedServerName()
INSERT INTO @ReturnTable(Org_Unit)
SELECT ReplicationID FROM OPENQUERY(@Server, '....')
I want to dynamically determine which column I select data from. The table I want to select from looks like this:tblSexualitySexualityID int PKEN nvarchar(20)NL nvarchar(20)DE nvarchar(20)Based on the value of variable @LanguageColumnName I want to select the value from either column "EN", "NL" or "DE"In the sample below the value of @LanguageColumnName is "NL".Unfortunately the value of sexualityname is ALWAYS: "tblSexuality.NL" and not the value from that specific column...how can I alter my procedure so that it does the select the value from that column?ALTER PROCEDURE [dbo].[spFindUsers]@LanguageColumnName nvarchar(3),@startRowIndex int,@maximumRows intASBEGINSET NOCOUNT ON; declare @tblSexualityName nvarchar(40)set @tblSexualityName='tblSexuality.' + @LanguageColumnName SELECT UserName,UserCode,ThumbNailPicture,BirthDate,ShowAgeOnly,IsMale,NearestBigCity,DistanceToNearestBigCity,Description,IsDonator,IsVIP,SexualityName FROM(SELECT ROW_NUMBER() OVER (ORDER BY UserCode) as RowNum,tblUserData.UserName,UserCode,IsDonator,IsVIP,Description,BirthDate,IsMale,ShowAgeOnly,tblCountries.CountryPicture,@tblSexualityName as sexualityname,tblCountries.CountryName,ThumbNailPicture,LastActivityDate,UserRanking,NearestBigCity,DistanceToNearestBigCity FROM aspnet_Users INNER JOIN tblUserData ON aspnet_Users.UserId = tblUserData.UserID INNER JOIN tblCountries ON tblUserData.Country=tblCountries.CountryID INNER JOIN tblSexuality ON tblUserData.Sexuality=tblSexuality.SexualityID) as MemberInfoWHERE RowNum > @startRowIndex AND RowNum <= (@startRowIndex + @maximumRows)END
I m writing a stored procedure to query a table Population that has the following fields - CityId, CityName, Plus0, Plus10, Plus20, Plus30, Plus40, Plus50, Plus60, Plus70, Plus80. The field Plus0 contains the number of people of age > 0 living in the city, Plus10 contains the number of people of age > 10 living in the city and so on. Given the city id and age groups like 20To40, 50To60, 40Plus, etc., I should be able to query the number of people in the city corresponding to the requested age group. Note that if the requested age group was 20To60, I need to make use of only 2 fields Plus20 and Plus60 in the table to compute this value. And if the requested age group was 40Plus, then I need only the value in the field Plus40. The problem is that a wide variety of age groups can be requested like 0Plus, 10Plus, ... , 80Plus, 0To10, 0To20, 0To30, .... 70To80.
Which is the most effecient way to handle this ?
1. Have a stored procedure that returns all the fields even though only 1 or 2 of them would be actually used ?
In this case, if I returned data for a large number of cities then there would be a lot of unnecessary information that was returned by the query. Lots of data would be passed through the network though most of it would not be used.
2. Have a stored procedure that takes in parameters @Plus0, @Plus10, @Plus20, .. @Plus80 that are bits indicating whether the field was required or not and then using a CASE statement to return values for a field only if the corresponding bit parameter was set, and returning NULL if the corresponding bit paramter was not set ?
In this case, I would be returning NULL for all those fields that were not required for a particular age group. This would save some network bandwidth, wouldn't it ?
3. Pass in the age group itself (ex: 0To20) as a parameter to the stored procedure and have lots of IF statements, one for each age group, that return only the fields that are needed for that age group.
This leads to a lot of code repitition.
4. Use a similar approach as above but use dynamic SQL queries to avoid code repitition.
But using dynamic SQL queries can affect the performance of the stored procedure as they need to be compiled each time.
Where does the "Dynamically determine port" check box come from when creating a ODBC connection using TCP/IP in the client configuration? Only shows up in the control panel/adminstrative tools/Data Sources (ODBC) when it is installed. I have 3 computers here that have it (they are for development) but I am finding my users desktops do not have the box and so I am getting errors trying to connect from their desktops.
I am using Excel and Microsoft Access 2000 to connect to the server using the ODBC connection.
I need my users to connect to SQL Server 2005 so I need the "Dynamically determine port" box checked to find the port. Tried typing in the port but that isn't solving the problem or answering my question. So far I have tried MDAC and .NET 2.0 platform installs with no luck.
I'm using SSAS2005 SP2 as a data source, and RS2005 SP2 for reporting.
With the upgrade to sp2, users assigned to an area in a sales location tree no longer get a value returned for AGGREGATE(MyValue.Value) when looking at a region higher than they are assigned.
My MATRIX reports now look like:
_______________________________|___|___| Region____Sub Region____Area1__|_5___3_| Sub Region Total_______________|_______| Region Total___________________|_______| Grand Total____________________|_______|
Before sp2, they had the 5 and 3 values repeated in all total rows.
My thought was to hopefully dynamically hide the sub region and region groupings and their related subtotals - but when trying to do this, only the grand total shows, and its values are blank.
When a person can only see Area1, I'd like the report to look like this:
but if they could see everything from the cube, I would like those sections to show, because they have values in them:
_______________________________|___|___| Region____Sub Region____Area1__|_5___3_| Sub Region Total_______________|_10__5_| Region Total___________________|_20_11_| Grand Total____________________|_42_13_|
Hi, is there a way of how to find all the SQL 2000 servers on our local Network. We have a lot of development servers around the company and I need a tool (or somthing) that could help me find the server name and the version of it.
I've been put in a situation where I have a number of SQL DB's running on 2005/2008 which I have responsibility for. I've been given limited information so am looking at a starting point to determine where I go from here.
I have of course ensured there is a backup strategy in place to secure the data.
Hi, have configured an ODBC linked server for an Adaptive Server Anywhere (ASA6.0) database. I have to write a function (not a procedure) that receives a number (@Code) and returns 1 if it was found on a table in the linked server, or 0 if not. Looks very simple... One problem, is that the queries on a linked-server must be made through the OPENQUERY statement, which doesen't support dynamic parameters. I've solved this making the whole query a string, and executing it, something like this:
SET @SQL='SELECT * FROM OPENQUERY(CAT_ASA, ''SELECT code FROM countries WHERE code=' + @Code + ''')' EXEC sp_executesql @SQL
(CAT_ASA is the linked-server's name)
Then, i would use @@ROWCOUNT to determine if the code exists or not. But before this, a problem appears: sp_executesql is not allowed within a function (only extended procedures are allowed). Does somebody know how to make what i want?? I prefer to avoid using temporary tables. Thanks!
can anybody tell me about Linked Servers and their uses and how to add a linked server to my Sql Server 2005. any help on this would be highly appreciated.
I have been trying to Link two sql servers on two different machines over the Internet without any luck. Can someone point me to information about doing this with good examples?
I currently have a main SQL Server which had a column on the majority of the tables. This column also had a check contraint on it. I dropped the column and the constraint and I now get the following message when trying to query the tables through a linked server 'OLE DB provider 'SQLOLEDB' supplied inconsistent metadata. An extra column was supplied during execution that was not found at compile time.'.
Hi All, I have successfully linked a server and had SQL queries running OK for a few weeks, but today I get the following message....
"OLE DB provider 'SQLOLEDB' supplied inconsistent metadata. An extra column was supplied during execution that was not found at compile time." (Server: Msg 7353, Level 16, State 1, Line 1)
I've dropped the link and recreated it but I still get the same error message. Can anyone help???
I have a DTS package that requires me to link 2 servers and query both in order to get my set of records that I want to Transform. My query runs fine in QA. I copy and paste it into the SQL Query window of the transformation. I click Preview and all that happens is a quick flicker of the DTS window. When I go to Transformations, there are no source columns.
Here is a copy of my code that I'm trying to use: ------------------------------------------------------- declare@start_dteas datetime, @end_dteas datetime
SELECTT70.* FROM CRMDEV02.MDCORE.DBO.T70_MD_UNIVERSE_RELATIONSHIP_M A NGT AS T70 JOIN #RUNS ONT70.RUN_ID = #RUNS.RUN_ID
DROP TABLE #RUNS ------------------------------------------------------ Is there an issue with Linked Servers and DTS? Any help would be greatly appreciated.
Hi Gurus, I am looking for literature to find out Pros and Cons of Using DTS Verses Linked Servers in SQL 7.0.
My requirement can be done by either DTS or Linked servers. But I would like to know more about resorce utilisation of these tecniques before making a decission.
When I create linked server using integrated security and <they will be impersonated> option I get this: Server: Msg 18456, Level 14, State 1, Line 1 Login failed for user '' MS Technet says that SQL Server 7 doesn't allow double hops and to use mappings to standard security login to work around. @#%%~~@@#@#&^%@# Impersonating to version 6.5 works fine. Is there any way to link servers using ONLY integrated security? Any help would be much appreciated. Thanks
I have setup a linked Informix server in SQL7.0 and I am trying to create a simple View with the following SQL statement
SELECT doc_code FROM FOURSITE.foursite.informix.watdoc WHERE (order_no = [PV01963B ])
I am getting the following error:
--------------------------- SQL Server Enterprise Manager --------------------------- [Microsoft][ODBC SQL Server Driver][SQL Server]Invalid use of schema and/or catalog for OLE DB provider 'MSDASQL'. A four-part name was supplied, but the provider does not expose the necessary interfaces to use a catalog and/or schema. --------------------------- OK Help ---------------------------
Hi. I'm working with SQL Server 7.0 and I've been reading about the linked server option. My question is, if it's possible to link a server with a SQLBase database 7.01.
I have download some drivers to my computer, the odbc driver for sqlbase and the sqlbase ole db driver as well, but when I try to add a new linked server in the enterprise, in the provider name option I can not see any provider name addressing to Centura or Sql base driver.
Has anybody an idea how to make this connection then? or the right way for doing it??
Thanks for any help can be offered. Regards, Elvia. :)
I have two 7.0 servers and I want to run a distributed query.
I did sp_addlinkedserver to link server B to server A and I did sp_addlinkedsrvlogin for a specific login. After adding login when I try to access a table on server B it says login failed
All the logins are NT authenticated (in both the servers, So both servers have same logins.)
Hi all I try to configure Linked Servers from the query analyze , and have some troubles. My steps are : 1. from the enterprise mennenger , add 2 new servers : srv1 , srv2 (both SQL7) 2. from the query analyzer of srv1.master: "sp_addlinkedserver 'srv2'" 3. from the query analyzer of srv1.master: "sp_addlinkedsrvlogin 'srv2',false,null,'sa','myPass'" 4. select * from srv2.pubs.srv2Table 5. I get the next error :"error 6 : Specified SQL srever not found."
This is my problem I have a Server A and Server B. There is a master table in Table A. I link Server A and Server B. When I look in Under Linked Server tables of B I can only C tables in Server A not the Server B 's Tables. Dpn't know what is happening. Could SOmebody help
I have two servers and they are linked servers. When I query a table on ON Box2 from Box1 The distributed query works fine but when I tried the oppisite it says 'SQL Server does not exist or access denied.' What could be the reason.
Recently, I had Microsoft review why our SQL Db was unexpectedly terminating. They pointed to our Oracle Linked servers. They recommended that we try to uncheck the enable allow in process option on the ODBC driver. We are currently using the Microsoft OLE Db provider for our Oracle connnections as we were unable to get the Oracle ones to work with a linked server. When we unchecked this allow in process option near the end of the day our website began getting out memory errors from ODBC. It appeared to have been because of this change. Does anyone have any insight as to why changing this option could have caused this?
Is there any limit to the number of linked servers i can add via EM?. where can i find more info on adding/configuring linked servers in MSSQL2k and the limitations/drawbacks if any?
We have a new 2005 server, and I am trying to link our old 2000 server so I can use the old databases in new server.
This is what I done: In 2005: EXEC sp_addlinkedserver oldServer --completed fine then: EXEC sp_addlinkedsrvlogin oldServer, 'false', NULL, 'Administrator', password --completed fine But whenI run the query I get the error:
OLE DB provider "SQLNCLI" for linked server "oldServer" returned message "Communication link failure". Msg 10054, Level 16, State 1, Line 0 TCP Provider: An existing connection was forcibly closed by the remote host. Msg 18456, Level 14, State 1, Line 0 Login failed for user 'Administrator'.
I have to link servers using sql server 2000 standard edition.... for anyone who has done this..... upon linking the servers using the other options radio button choice.... is it suppose to show all the databases for that server under the drop down.... its only showing tables and views... which i get an error 7339 or error 17:
can anyone assist...or lead me in the right direction..... thanks, jonathan
Disclaimer: I am not a DBA so my attempts may not make sense. :)
I have a win 2003 server running sql server 2005. I am trying to create a 'linked server' with an oracle 8i database at a remote site. I have tried using the 'add linked server' option from sql server enterprise manager and I have also tried to create it using the sp_addlinkedserver command. i tried using a dsn as the datasource and I have also tried using a dsnless connection using a TNS entry as the provider string. The Oracle client is on the box as can be confirmed both by the dropdown in the 'add linked server' dialog in sql server enterprise manager and also by going into the oracle enterprise manager and actually sending oracle data. I don't really have a preference on how to create the 'Linked server', I just need to get it to work.
