Transact SQL :: Referencing UDFs And Sprocs In Linked Server
Oct 7, 2015
We have migrated a database (myDb2014) to a SQL Server 2014 instance. We have another on a 2008R2 instance (myDb2008). Both on the same server.
I have setup a linked server to the 2014 instance from the 2008R2 one.
I have a number of sprocs on myDb2008 that call TVFs and sprocs on myDb2014. This worked fine when they were both on the same instance.
Now however, I have an issue where I would have to update all the references in each calling query.
I looked into creating Synonyms but this only works for Tables/Views.
Is there a workaround to querying myDb2014 TVFs/sprocs without having to update each calling query in myDb2008?
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Feb 25, 2008
Hello,
How can I call UDFs on linked servers in SQL Server 2005?
More details:
I have some UDFs on Instance "VAXPServerA" in Database "DB1", for example "getSomething(number)".
It might look like this (for example):
----
CREATE FUNCTION [dbo].[getSomething] (
@theNumber int
)
RETURNS int AS
BEGIN
DECLARE @result int
SET @result = theNumber * 5
RETURN @result
END
----
I can call this function inside of the DB by typing:
----
SELECT dbo.getSomething(5)
----
I also can call the function from another DB on instance "VAXPServerA" by typing:
----
SELECT DB1.dbo.getSomething(5)
----
I have a second instance called "VAXPServerB", and "VAXPServerA" is a linked server in "VAXPServerB". I can do selects and stuff, it works fine.
But when I want to call the function...
----
SELECT [VAXPServerA].DB1.dbo.getSomething(5)
----
I obtain the next error:
Msg. 207, Level 16, State 1, Line 1
The column name 'VAXPServerA' is not valid.
Any hint?
Thanks in advance
David
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Jul 22, 2015
I have a very simple bit of code.
SELECT dbo.MF_PATIENT.Forename,
dbo.MF_PATIENT.Surname,
dbo.MF_PATIENT.DOB,
dbo.MF_PATIENT.Postcode,
Count(dbo.MF_PATIENT.HEYNo) AS CountOfHEYNo
[Code] ....
My issue is I want to run this bit of code but only if dbo_MF_PATIENT.MFPatientID appears in any of the 3 tables below:
dbo_ED_ATTENDANCE, dbo_OP_APPOINTMENT, dbo_IP_ADMISSION
Suppose im unsure on the joining because there is only ever one patient in the
dbo_MF_PATIENT table but they could appear dozens of times in any of the other 3 tables.
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Apr 23, 2006
I am wondering what the advantages of using CRL Sprocs over T-SQL sprocs and what not.
Looking for such comparison and articles on websites resulted in only "how to create CRL sprocs" but none of them were talking about what they are used for in what situations.
I would really appreciate it if you guys can post comments, links and external articles.
Thank you in advance.
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Aug 28, 2015
Is it possible to pull name & email from Active Directory using SSMS w/o a linked server connection?
And this would be using SQL 2008
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Jun 15, 2006
For example, the table below, has a foreign key (ManagerId) that points to EmployeeId (primary key) of the same table.
-------Employees table--------
EmployeeID . . . . . . . . . . int
Name . . . . . . . . . . . nvarchar(50)
ManagerID . . . . . . . . . . . int
If someone gave you an ID of a manager, and asked you to get him all employee names who directly or indirectly report to this manager.
How can that be achieved?
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Sep 24, 2015
I have set up two SQL server (e.g. Server1 and Server2) which are set up to use Windows Authentication with my login (e.g. login1).On Server1 I have created a linked server to Server2, I have then selected the Security tab and added my local login and selected impersonate. I have then selected ‘Be Made using the login’s current security context’.I then receive the error message ‘The linked server has been updated but failed a connection test. Do you want to edit the linked server properties?’
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Oct 19, 2015
I need to replicate database from one of LINKED server to another SQL instance on a different server. What will be a best way to achive this ? I'm using MS SQL server 2008 r2
- Should I just take a backup of my current database and restore it (Will this also cover up access to objects for different users, or do I need to write a separate script for it).
OR
-Should I go to TASK > generate scripts and create one... Here I believe I need to additionally take care of access rights, indexes, constraints.
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Oct 2, 2015
basically, we have two databases, one with fix name, eg. DB1 in all environments, and another is named with prefix based on environment, eg. DB2_DEV, DB2_TEST, that is generated by some managed application.
Then we have queries or view/SPs residing in the first database, eg. DB1 that access database resources from the second database, DB2_***. Both databases are residing in the same SQL instance.
Currently, we have hardcoded the database name in the query but would prefer not to manually rename or write other scripts to update the query with the correct database name when deploying to other environments.
For example:
SELECT * FROM DB2_DEV.dbo.vAccounts
When deploy to TEST, we need to update the query to:
SELECT * FROM DB2_TEST.dbo.vAccounts
So, I looked at Synonyms but it seems it can only create 'alias' for tables or views, and not database.
Hence, last thought is to create self linked server, so I can write my query like below and setup the linked server accordingly.
SELECT * FROM SRCDB.dbo.vAccounts
Any consideration to think of, eg. performance, security, etc?
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Sep 20, 2015
I'm executing a sp name [uspGeneral_Getinfo]. It return a global temporary table's name and I want to get data from that table.
[192.168.2.11] = Linked Server
Declare@LinkedServer varchar(40)='[192.168.2.11].DBPharm.dbo.',@OutPutTableName varchar(50)=' ',@SQL nvarchar(max)Set@LinkedServer=Rtrim(Ltrim(@LinkedServer))Set@SQL=' Declare @OutPutTableName varchar(50),@SQL nvarchar(max) EXEC '+@LinkedServer+'[uspGeneral_GetDomainDataNew] 9,null, @OutPutTableName OutPut '+' Set @SQL='''+'Select * from '''+'+ @OutPutTableName'+' Exec sp_executesql @SQL 'Select@SQL
Above code are executing from another server [192.168.2.10].But getting an error that .I can't able to search where the temp table created in linked serve tempdb or ...?
Database name 'tempdb' ignored, referencing object in tempdb.
Database name 'tempdb' ignored, referencing object in tempdb.
Database name 'tempdb' ignored, referencing object in tempdb.
Database name 'tempdb' ignored, referencing object in tempdb.
Msg 208, Level 16, State 0, Line 38
Invalid object name '##table1FD1B81Bx4EAFx4FFDx9F6Fx15B77B6445F'.
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Jun 18, 2015
I have a database that is off site, it has a database one it that I have a Linked server connection to. We have no other means of connecting to that server database except via that linked server connection. Is there a way I can Copy eplicatemoves etc... that database to an internal server with out doing it table by table. It is apx 80gig db
Copying a backup file is not an option either, and Mailing it on media make it a significant delay.
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Oct 29, 2015
I have configured a Linked Server with Active Directory (LDAP), working properly.
Now, through this Linked Server, I need information about password expiration date in my AD Domain accounts.
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Jul 22, 2015
Error below was returned from an agent job:
OLE DB provider "SQLNCLI11" for linked server returned message "Query timeout expired". [SQLSTATE 01000]
A linked Server was set up against a remote database to backup a database and it runs perfectly well when executed directly against the remote server but returns the above error when set up through Sql Server Agent. Permissions are good as the step returns success. I reset the query timeout property to zero but error persist. What else should I be looking at to make this work?
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Aug 30, 2006
I know that stored procedures(sql server) caches stored procedures in memory where it keeps the compiled execution plan in memory, how does it work with the views does sql server store /cache the views. Just wondering Thanks
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Aug 4, 2015
I have a table called ADSCHL which contains the school_code as Primary key and other two table as
RGDEGR(common field as SCHOOl_code) and RGENRl( Original_school_code) which are refrencing the ADSCHL. if a school_code will be updated both the table RGDEGR (school_code) and RGERNL ( original_schoolcode) has to be updated as well. I have been provided a new data that i have imported to SQL server using SSIS with table name as TESTCEP which has a column name school_code. I have been assigned a task to update the old school_code vale ( ADSCHL) with new school_code ( TESTCEP) and make sure the changes happen across all 3 tables.
I tried using Merge Update function not sure if this is going to work.
Update dbo.ADSCHL
SET dbo.ADSCHL.SCHOOL_CODE = FD.SCHOOL_Code
FROM dbo.ADSCHL AD
INNER JOIN TESTCEP FD
ON AD.SCHOOL_NAME = FD.School_Name
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Apr 24, 2014
There are plenty of scripts to do this on a per-DB level, but any that will allow me to generate a script for all DB's at once? Mine are split across dozens and it would be much easier to do a loop (using MS_ForeachDB ? )
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Jul 20, 2005
I need just the names of tables, views and sprocs within a SQL Serverdatabase. What's the easiest way to do this?
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Jun 6, 2006
How would I go about tracing UDF performance in profiler? I'd like to
specifically know the impact of the UDF without having to dig into the
execution plan of the statement containing it. Is this possible?
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Aug 2, 2007
Can changes made to replicated stored procedures (and User-defined Functions) on the Publisher update the Subscriber database?
If I ALTER a SP (or UDF) on Database1 with peer-to-peer Transaction Replication to Database2, will the alter replicate to the Subscriber(s)?
Thomas
ThomBeaux
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Aug 15, 2006
I know there is a lot of information already out there on this topic,but given the following scenario...--------------------------------------------------------------------------------------------------------------------------------------Create a view like so ( pardon the pseudo-code )...CREATE View vwContactAddressesSelect * FROM Contact INNER JOIN Address ON Contact.ContactID =Address.ContactIDAnd then do a sargable select from the view using a stored procedureCREATE STORED PROCEDURE spSelect_ContactAddresses@ContactID intASSelect * FROM vwContactAddresses WHERE ContactID = @ContactID--------------------------------------------------------------------------------------------------------------------------------------In my understanding, "vwContactAddresses" would be substituted with theactual SQL join statement when the view is accessed.So for the stored procedure in question an execution plan for"Select * FROM Contact INNER JOIN Address ON Contact.ContactID =Address.ContactID WHERE ContactID = @ContactID" would be cached.Correct?With regards to execution plan caching, is this not the same ascreating an inline UDF that takes parameters or just creating a storedprocedure that would do the join w/out the view reference?
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Jan 14, 2008
Hi,
I have a datasource to an SQL server table which is used in a dataset with the following sql
e.g.
select *
from tblcustomer
I need to join tblcustomer to another SQL table located on a different server and database (datasource)
how would i go about doing this?
I tried the below which failed, anyone can help?
select *
from tblcustomer LEFT JOIN server1.database1.tbluser on server1.database1.tbluser.userid = tblcustomer.userid
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May 20, 2015
I have 2 DBs located on separate Sql Servers but the DBs are linked. I am querying data from both DBs but want to combine the results. Here is my query but it doesn't seem to be working.
(SELECT DISTINCT
idname, name, address, address2, awardedtoname, suppno
FROM contract INNER JOIN
house ON contract.idname = house.idname)
JOIN
(SELECT DISTINCT
tpd.PropertyNumber AS [Property No], tpd.Address1 + ' , ' + tpd.Address2 AS Estate, tpd.Address1 AS Address1,
[Code] ....
How I could combine the results?
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Mar 25, 2002
Hi ,
On my Desktop i registered Production Server in Enterprise Manager
on that Server if i go to SecurityLinked Servers
There is another Server is already mapped, when i am trying to see the Tables under that one of the
Linked Server i am getting the Error message saying that
"Error 17 SQL Server does not exist or access denied"
if i went to Production Server location and if i try to see the tables i am able to see properly, no problems
why i am not able to see from my Desk top
i am using the sa user while mapping the Production Server on my DESKTOP using (ENTERPRISE MANAGER)
And i check the Client Network Utility in the Alias using Named Pipe only, i changed to TCP/IP still same problem
What might the Problem how can i see the Tables in Linked Server from my DESKTOP
Thanks
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Apr 24, 2015
I am using Linked Server in SQL Server 2008R2 connecting to a couple of Linked Servers.
I was able to connect Linked Servers, but I cannot point to a specific database in a Linked Server, also, I cannot rename Linked Server's name.
How to point the linked server to a specific database? How to rename the Linked Server?
The following is the code that I am using right now:
USE [master]
GO
EXEC master.dbo.sp_addlinkedserver
@server = N'Machine123Instance456',
@srvproduct=N'SQL Server' ;
GO
EXEC sp_addlinkedsrvlogin 'Machine123Instance456', 'false', NULL, 'username', 'password'
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Jul 8, 2004
Hi,
What is the difference between a computed column and a UDF?
Is a computed column the same as the "Formula" field under Design Table in Enterprise Manager?
Also, what is the proper syntax for the Formula field? Can I use regular SQL on it or is there more to it?
thanks,
Frank
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Jun 17, 2005
-- Author: Igor Nikiforov, Montreal, EMail: udfs@sympatico.ca
-- GETWORDCOUNT() User-Defined Function Counts the words in a string.
-- GETWORDCOUNT(@cString[, @cDelimiters])
-- Parameters
-- @cString nvarchar(4000) - Specifies the string whose words will be counted.
-- @cDelimiters nvarchar(256) - Optional. Specifies one or more optional characters used to separate words in @cString.
-- The default delimiters are space, tab, carriage return, and line feed. Note that GETWORDCOUNT( ) uses each of the characters in @cDelimiters as individual delimiters, not the entire string as a single delimiter.
-- Return Value smallint
-- Remarks GETWORDCOUNT() by default assumes that words are delimited by spaces or tabs. If you specify another character as delimiter, this function ignores spaces and tabs and uses only the specified character.
-- If you use 'AAA aaa, BBB bbb, CCC ccc.' as the target string for dbo.GETWORDCOUNT(), you can get all the following results.
-- declare @cString nvarchar(4000)
-- set @cString = 'AAA aaa, BBB bbb, CCC ccc.'
-- select dbo.GETWORDCOUNT(@cString, default) -- 6 - character groups, delimited by ' '
-- select dbo.GETWORDCOUNT(@cString, ',') -- 3 - character groups, delimited by ','
-- select dbo.GETWORDCOUNT(@cString, '.') -- 1 - character group, delimited by '.'
-- See Also GETWORDNUM() User-Defined Function
-- UDF the name and functionality of which correspond to the same built-in function of Visual FoxPro
CREATE function GETWORDCOUNT (@cSrting nvarchar(4000), @cDelimiters nvarchar(256) )
returns smallint
as
begin
-- if no break string is specified, the function uses spaces, tabs and line feed to delimit words.
set @cDelimiters = isnull(@cDelimiters, space(1)+char(9)+char(10))
declare @p smallint, @end_of_string smallint, @wordcount smallint
select @p = 1, @wordcount = 0
select @end_of_string = 1 + datalength(@cSrting)/(case SQL_VARIANT_PROPERTY(@cSrting,'BaseType') when 'nvarchar' then 2 else 1 end) -- for unicode
while dbo.CHARINDEX_BIN(substring(@cSrting, @p, 1), @cDelimiters, 1) > 0 and @end_of_string > @p -- skip opening break characters, if any
set @p = @p + 1
if @p < @end_of_string
begin
set @wordcount = 1 -- count the one we are in now count transitions from 'not in word' to 'in word'
-- if the current character is a break char, but the next one is not, we have entered a new word
while @p < @end_of_string
begin
if @p +1 < @end_of_string and dbo.CHARINDEX_BIN(substring(@cSrting, @p, 1), @cDelimiters, 1) > 0 and dbo.CHARINDEX_BIN(substring(@cSrting, @p+1, 1), @cDelimiters, 1) = 0
select @wordcount = @wordcount + 1, @p = @p + 1 -- Skip over the first character in the word. We know it cannot be a break character.
set @p = @p + 1
end
end
return @wordcount
end
GO
-- Author: Igor Nikiforov, Montreal, EMail: udfs@sympatico.ca
-- GETWORDNUM() User-Defined Function
-- Returns a specified word from a string.
-- GETWORDNUM(@cString, @nIndex[, @cDelimiters])
-- Parameters @cString nvarchar(4000) - Specifies the string to be evaluated
-- @nIndex smallint - Specifies the index position of the word to be returned. For example, if @nIndex is 3, GETWORDNUM( ) returns the third word (if @cString contains three or more words).
-- @cDelimiters nvarchar(256) - Optional. Specifies one or more optional characters used to separate words in @cString.
-- The default delimiters are space, tab, carriage return, and line feed. Note that GetWordNum( ) uses each of the characters in @cDelimiters as individual delimiters, not the entire string as a single delimiter.
-- Return Value nvarchar(4000)
-- Remarks Returns the word at the position specified by @nIndex in the target string, @cString. If @cString contains fewer than @nIndex words, GETWORDNUM( ) returns an empty string.
-- See Also
-- GETWORDCOUNT() User-Defined Function
-- UDF the name and functionality of which correspond to the same built-in function of Visual FoxPro
CREATE function GETWORDNUM (@cSrting nvarchar(4000), @nIndex smallint, @cDelimiters nvarchar(256) )
returns nvarchar(4000)
as
begin
-- if no break string is specified, the function uses spaces, tabs and line feed to delimit words.
set @cDelimiters = isnull(@cDelimiters, space(1)+char(9)+char(10))
declare @i smallint, @j smallint, @p smallint, @q smallint, @qmin smallint, @end_of_string smallint, @LenDelimiters smallint, @outstr nvarchar(4000)
select @i = 1, @p = 1, @q = 0, @outstr = ''
select @end_of_string = 1 + datalength(@cSrting)/(case SQL_VARIANT_PROPERTY(@cSrting,'BaseType') when 'nvarchar' then 2 else 1 end) -- for unicode
select @LenDelimiters = datalength(@cDelimiters)/(case SQL_VARIANT_PROPERTY(@cDelimiters,'BaseType') when 'nvarchar' then 2 else 1 end) -- for unicode
while @i <= @nIndex
begin
while dbo.CHARINDEX_BIN(substring(@cSrting, @p, 1), @cDelimiters, 1) > 0 and @end_of_string > @p -- skip opening break characters, if any
set @p = @p + 1
if @p >= @end_of_string
break
select @j = 1, @qmin = @end_of_string -- find next break character it marks the end of this word
while @j <= @LenDelimiters
begin
set @q = dbo.CHARINDEX_BIN(substring(@cDelimiters, @j, 1), @cSrting, @p)
set @j = @j + 1
if @q > 0 and @qmin > @q
set @qmin = @q
end
if @i = @nIndex -- this is the actual word we are looking for
begin
set @outstr = substring(@cSrting, @p, @qmin-@p)
break
end
set @p = @qmin + 1
if (@p >= @end_of_string)
break
set @i = @i + 1
end
return @outstr
end
GO
-- Is similar to the built-in function Transact-SQL charindex, but regardless of collation settings,
-- executes case-sensitive search
-- Author: Igor Nikiforov, Montreal, EMail: udfs@sympatico.ca
CREATE function CHARINDEX_BIN(@expression1 nvarchar(4000), @expression2 nvarchar(4000), @start_location smallint = 1)
returns nvarchar(4000)
as
begin
return charindex( cast(@expression1 as nvarchar(4000)) COLLATE Latin1_General_BIN, cast(@expression2 as nvarchar(4000)) COLLATE Latin1_General_BIN, @start_location )
end
GO
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Mar 6, 2007
Hi!I need to refresh an entire database.I can recompile SPs with sp_recompile (or DBCC FLUSHPROCINDB), andrefresh views with sp_refreshView, but I cannot find any way torefresh my user-defined functions (some of them are like views, withparameters).Any help appreciated :) !Ben
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Jan 28, 2004
Hi,
I have written an udf that checks for validations of an email address and returns 0 / 1 as per the validations. I came across an artical on MSDN that describes the steps to make my own system udf. http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnsqlpro01/html/sql01l1.asp
with help of that artical, I made my udf as a system udf. and now I can use it as follows.
select * , fn_isvalidemail(email) from #tp
now, I wanted to use this as a declarative check constraints in my tables. so I tried
create table testtable
( email_addr varchar (255) null CONSTRAINT CK_email_chk CHECK ( fn_isvalidemail(email) = 1) )
although this is syntax is logically correct, it does not get compiled
it gives me an error saying,
Server: Msg 195, Level 15, State 10, Line 2
'fn_isvalidemail' is not a recognized function name.
the strange part is that i made the function as another normal udf, It works in declarative constraints.
create table testtable
( email varchar (255) null CONSTRAINT CK_1p12 CHECK ( dbo.isvalidemail(email) = 1) )
Any thoughts on this ?
- Amit
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Jun 9, 2015
I have always learn that UDFs are not Pre-Compiled while Stored procedures are. But I always had this questions why are UDFs are not Pre-Compiled.
I searched online for the answer but dint get an concrete justification on the same.
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Feb 15, 2008
Hi everybody,
I know that it is possible for one column to reference two different parent tables by defining two foreign keys on a same column, I have done it and SQL Server does give any error. But I want to know that is it advisable to define multiple foreign key on a column referncing two differnt parent table's primary key in differnt case... ? Means If Case 1 then It should reference to column1 or table1 otherwise it should reference to table2? How is it practicle...?
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May 21, 2014
An example of what I am talking about is the employee table in the Adventureworks database. This has employeeID and then ManagerID, ManagerID just being the EmployeeID of the person whom the original reports to.
I know the queries for querying this type of data and even making recursive common table expressions. What I cannot seem to find is how one goes about BUILDING said table. I see all sorts of examples where people are just doing INSERT table VALUES () manually to load the table. The problem is, I need to create a table that has potentially thousands of records.
It will essentially be a dimensional map. Don't even get me started as to they why, I will just suffice to say that is what the client and project want . I have a process that will do this now, but it is not very dynamic and very hard coded. To me, there seems like there should be some sort of standardized methodology for handling this.
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Oct 12, 2012
I ran into an interesting situation. I'm working on contract and was looking at creating an ERD for an existing database when I ran into a problem. I found FK's that are referencing columns that do not have a unique constraint or a unique index.
I don't know the history of the database but was there a time in SQL Server history where this would have been possible? I scripted out the tables and created it in a test database. When I run the script to create the FK I get the following message.
I double checked the original tables and this FK does exist in table1 and there is no unique anything in the referenced table, table2. Currently the database is running on SQL Server 2008 Ent.
ALTER TABLE [dbo].[table1] WITH CHECK ADD CONSTRAINT [FK_table1] FOREIGN KEY([Col1])
REFERENCES [dbo].[table2] ([col2])
There are no primary or candidate keys in the referenced table 'dbo.table2' that match the referencing column list in the foreign key 'FK_table1'.
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Jul 18, 2006
Is there a way to bypass the syntax checking when adding a stored procedure via a script?
I have a script that has a LINKed server reference (see below) .
INSERT
INTO ACTDMSLINKED.ACTDMS.DBO.COILS ..etc.
ACTDMSLINKED does not exist at the time I need to add the stored procedure that references it.
PLEASE to not tell me to add the LINK and then run the script. This is not an option in this scenerio.
Thanks,
Terry
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