In SQL 2005 I use this 'min_active_rowversion()' to return the lowest active rowversion but this function is not available in SQL 2000. Is there any similar kind of thing in SQL 2000. We have 2 different application one on SQL 2005 and other on SQL 2000.
Thanks !
For code reuse, I am trying to get a table valued function to return users of a given AD group name. I can easily get this with hard-coding the group name. But because OpenQuery wont accept parameters, I can't insert my group name there. And because functions can't call dynamic SQL, I can't do it via dynamic sql. I have seen people do it with CLR, but I rather not go that route. I can use a stored procedure + cursor and iterate through each group and store the results into real tables and create a cache, but I rather query Active Directory itself to save space, but I rather do the caching then the CLR. Any approach I am missing on how to do this?
The following works fine:
SELECT DISTINCT sAMAccountName
FROM OPENQUERY(ADSI, 'SELECT sAMAccountName, sn
FROM ''LDAP://OU=SomeOU,OU=SomeOtherOU,DC=SomeDC,DC=SomeOtherDC''
WHERE objectCategory=''Person'' AND objectClass=''USER'' AND memberOf=''CN=SomeGroupName,OU=SomeOU,OU=SomeOtherOU,DC=SomeDC,DC=SomeOtherDC''') a
WHERE sn IS NOT NULL
The following gives me the error:
Invalid use of a side-effecting operator 'EXECUTE STRING' within a function.
CREATE FUNCTION [dbo].queryADGroupMembers
(
@group nvarchar(255)
)
RETURNS @rtnTable TABLE
[Code] .....
Hi,
I am reading information of timestamp type in sql server.
I have read something about timestamp is deprecated and new type is rowversion, but in my sql server 2005 there isnt any type rowversion.
is timestamp deprecated?
how can I cast timestampt to datetime?
Thanks
I have a RowVersion/Timestamp column in my table. I check against the RowVersion/Timestamp column when updating rows to check if a row has been updated by another user. I would like to call RAISERROR with a custom message which indicates the current RowVersion/Timestamp of the row in question.
What data type do I convert the RowVersion/Timestamp column into so I can make it part of the custom message which will be a string?
If I convert the RowVersion/Timestamp column into a bigint column, will the max value of RowVersion/Timestamp ever exceed the max value of a bigint? For example, convert(bigint, MyRowVersionColumn)
If the max value of the RowVersion/Timestamp column can exceed the max value for a bigint column, can I convert the RowVersion/Timestamp into a hex string?
Basically RowVersion/Timestamp columns are binary(8) or varbinary(8) so the question could also be answered if it is known if binary(8) can exceed the max value of bigint or if binary(8) can be converted into a hex string
Any help would be appreciated, Thanks!
Is there an equalivent to scope_identity that supports getting the rowversion value last provided by the system?
The reason I'm asking: We're updating a table, and I want to send the rowversion value back to the client as an output paramter so they can update again without running into a false positive concurrency error.
Without something like scope_identity, I have to run a select statement after the update just to get the rowversion that was provided by the system, and that hardly seems efficient.
My goal is to avoid the extra code and the select statement.
Hello, I'm attempting to use the Sql Timestamp (Rowversion in 2005) datatype for optimistic concurrency for my SqlDataSource because the table I'm updating has a few columns that can be null which breaks the optimistic concurrency code generated by visual studio. However, the Type's available for SqlDataSource parameters do not include "Timestamp" and everything else I've tried throws exceptions. SO, is there anyway to use the timestamp/rowversion datatype with a SqlDataSource? Many thanks for your help, I have been googling this for literally hours. Thanks again.Drew
View 5 Replies View RelatedHello all,I am new at SQL Server 2005 and have been reading everything I canfindabout the new optimistic concurrency control mechanisms. As far as Ican tell, the Snapshot Isolation Level is based avoids the use ofshared locks using rowversioning instead.To control rowversions in SQL Server 2000 I was using an extra columnin each table containing a rowversion datatype. What i do with this isfind out if a row was modified. Is it possible in SQL Server 2005 toavoid the use of this extra column, using the new versioning features?What I mean is, if the Snapshot Isolation already manages rowversionsin TempDB, is it possible for me to query those versions using somestored procedures or functions given by SQL Server 2005 system? Whatfunctionalities does SQL Server 2005 gives me for that (anydocumentation pointer would help)?This would allow me to do the exact same processing that i was doingwith the rowversion column in SQL Server 2000 without the need forthat extra column.For all of you my thanks and best wishesSusana Guedes
View 1 Replies View Related
Hi,
i wanted to read some datasets from a table with the ROWVERSION. Then i wanted to save these records with the ROWVERION- Column in a temp table. Now it seems i cant explicitely write data in a ROWVERSION Column. As i understand its only possible to write a default value in such columns. Only SQL Server itself can write into ROWVERSION columns.
Am i right with this meaning?
Thx in advance...
Greets Kamei
I have a table with the following columns employeeSessionID, OpDate, OpHour, sessionStartTime, sessionCloseTime. I need to see how many users remain active per hour. I can calculate how many logged in per hour, but I am stumped on how to count how many are active per hour. I have a single table that stores login data. I have created a query that pulls out the only the data needed from the table into a temp table using this query. Also note it is possible that the sessionCloseTime is null if the device has not been logged out this would need to be counted a active.
TABLE NAME #empSessionLog Contains the time stamp data OpDate, sessionStartTime and sessionCloseTime.
OpDatesessionStartTimesessionCloseTime
2015-01-202015-01-20 14:32:59.1302015-01-20 14:33:14.6299166
2015-01-202015-01-20 06:58:33.7302015-01-20 15:27:16.9133442
2015-01-202015-01-20 09:56:22.8402015-01-20 17:56:29.7555853
2015-01-202015-01-20 05:59:18.6132015-01-20 14:05:19.0426707
[code]....
can see how many sessions logged in per hour with the following statement:
SELECT
opDate,
FORMAT(DATEPART(HOUR, sessionStartTime), '00') AS opHour,
Count(*) AS Total
FROM #empSessionLog
Group BY opDate, FORMAT(DATEPART(HOUR, sessionStartTime), '00')
Order BY opDate, FORMAT(DATEPART(HOUR, sessionStartTime), '00') ASCResults:
opDateopHourTotal
2015-01-20041
[code]....
Where I am stuck is how do I count the sessions that remain active per hour until the session is closed with the sessionCloseTime.
Hi
I am having some teething problems while installing SQL on a 3 node cluster. Within the Cluster configuration I have 3 Cluster Groups with each of them having their associated disk resources. All these disk resources physically exist on a SAN.
The actual cluster is running absolutely fine and I can access all the disks from their respective owner node. The problem only starts when I start installing SQL Server 2005 on this cluster. I specify the Cluster group from the Cluster Group Selection and choose the desired partition and then the error message pops up
"There is not enough diskspace on the destination disk for the current SQL Server data files. To proceed, free up disk space to make room for data files, or install the data files to a different drive"
But the disk I am trying to install it on is 264Gb and none of it is used. I have also tried to change it to a different disk within the same Cluster group but to no avail. I have even tried to install it in a different cluster group all together but I get the same error message.
I have googled around havent found anything so far. The disks have got full permissions for the account I am installing SQL with.
Any help will be much appreciated.
Regards
Adnan
Hi
I am newbie in SQL Clustering. I have set up a Windows Server Cluster with 2 nodes and am having the following problem with Physical Disk resource for cluster groups:
My Default Cluster Group (named Cluster Group) has IP Address, Network Name, Physical Disk and MSDTC resources. In addition to that my Default SQL Server instance resources are also in this group. I had this initial set up for Active/Passive mode.
Now I am trying to set up a SQL Cluster in Active/Active mode. For this I have to install another instance of SQL Server in the existing cluster and make a separate cluster group for its resources. I made a new cluster group (SQL Instance Group) with an IP Address and a Network Name resource for this new instance but I dont have any Physical Disk resource to allocate to it. As such while installing the SQL Server Instance I get stuck when I'm asked to select the quorum disk to be used.
Is it possible to configure two quorum disks, one for each group?
What's the concept of dedicated disks resource for each sql instance in a group? Is this same as the quorum disk? If this is not a shared disk how do I configure a dedicated disk resource for my second cluster group (SQL Instance Group)?
Anyone could please help me out with this?
Hi folks,
We are going thru the process of scoping an active/active cluster at one site.
I was wondering whether there will be any issues with mirroring (DB by DB) off the cluster into non clustered server at an alternate DRP site.
Regards, Brian
Sutherland
Hi all, My aim to install active/active 2 node SQL 2005 cluster. I have installed sql cluster on one mode, which automatically installed on node 2.
it works great. However When i tried to install second virtual server, it is not allowing me to install.
it says already install, can anyone tell me how to install active active cluster
Hi,
We are trying to set up an active/active configuration of a SQL Server
cluster, and we had a few questions.
Initially, we want to have 2 Database Servers that would share the same
Database (both reading/writing to the same tables).
However, from reading the MS docs, we find out that we can have what
they call an "active/active" configuration using a Cluster but they
need to have 2 different disk sets, i.e. having 2 separate databases.
If this assumption is correct, how does the data get synchronised
between the 2 databases (that are on the 2 different disks sets)?
Can anyone help? thanks
Axel
ACTIVE/ACTIVE SQL Server 2000 Cluster
This was my plan.
Physical box - box1,box2
virtual box - virtual1
i have a active/passive cluster virtual1 (primary node box1, secondary box2)
I am creating another virtual box on box2 as primary node by name virtual2)
whenever my installation setup runs my default server name is greyed out. it always requires a instance name.
Is that the way it should work?
i can only use instance for active/active failover?
please advice
How do I install MSDTC in an active/active MSCS cluster environment?
If I run comclust.exe, I can only activate MSDTC on one of the nodes at a time.
I need DTC on both nodes.
(Opsys is W2K with SQL 2000)
//Mange :)
Hello folks,
have you ever heard of an Active/Active SQL Sever 2000 Cluster deployed in a pure OLTP environment?
Some 8 years ago I have learned about a bespoke solution for the SAP ERP system (not the BW!) with DB2 Parallel Server for a huge German company. Then again, I would expect that Oracle RAC might fit into an OLTP environment, although I never heard about a real world implementation.
All this led me to believe clustering is good for failover purposes, and for decision support services, not quite for OLTP applications.
So if you see a point in Active/Active Clustering and OLTP please come forward and explain.
Cheers,
Johann
P.S: For those of you who want to know: Consultants from www.hiltes.com want us to deploy an Active/Active Cluster for their Fashion 3000 Net stock software.
We run several SQL 2000 SP4 instances on IA64 active/active cluster. The OS we run with is Windows Server 2003 SP1. We have different network cards : 2 network cards teamed for production purposes in domain X and 1 network card dedicated for problem solving in domain Y.
First we configured the cluster with only the 2 teamed network cards for production purposes in domain X. Later we introduced the second network card for problem solving in domain Y.
Everything looks fine. The (virtual) SQL instance listens on two different IP adresses on TCP port 1034. If we try to make connection via isql, EM or Query analyzer than we can directly contact the SQL instance from a workstation/server within domain X but this doesn't work form a workstation/server within domain Y. However if we use the specific TCP port in the connection in domain Y the connection is setup. We wish however not to use explicit TCP ports in setting up connections.
Has anyone experienced the same problem before or has anyone an idea how to solve the problem?
I have a 2005 active/active cluster and want to apply SQL server 2005 SP2 to both node.
I know that for active/passive , the sp can simple be installed on the active node(instance) and everything will be replicated to the other node.
bear in mind what I have SSIS and SSAS and SSRS running on the active/active cluster.
what is the rigth method for applying the SP to activeactive cluster?
Thanks
Hi
While configuring an active / active cluster, do I need to run the SQL setup on both nodes?
The SQL2K setup installs binaries on localdisks of both nodes - hence the question.
thanks
Liju
I have setup an active/active clustering environment for SQL Server, however it is 2 seperate virtual servers. How can I set them up to exist as one virtual server containing both active installations? Can this be done? I have two compaq 8500 w/8 processors each. I need to be able to cluster these configurations to take advantage of all 16 processors in one virtual SQL Server. Can it be done?
If you can answer these questions, you will have my undying gratitude.
Thanks in advance.
Hi
I am running some tests on SQL7 in an active/active cluster and have a couple of queries
1. When I create an ODBC DSN, why is the "Use the Failover SQL Server if the primary SQL Server" checkbox disabled
2. To test, I was running SQL queries from Access over the DSN created. When the Primary Server went down, I had to reconnect to re run the query - Is this normal?
3. Can someone point me to any documentation on the above scenario that would shed some more light?
Thanks
Liju
I currently have a two node HP hardware active/active cluster server. Running windows NT 4.0 Enterprise and dSQL server 6.5 sp 3. I want to upgrade the cluster to SQL 7. I would like to know if anyone ran into any problems or has sucessfully attempted this.
Also I read a few months ago about a gottcha involving NT sp4 and SQL sp5a that would prevent a node from failing over. Has this been corrected and does it affect SQL 7.
thanks
Hi
Is there anyone who knows where I can get some information about
installing an ACTIVE/ACTIVE SQL 2000 Cluster server (MSCS).
I have no problem setting up an active/passive failover cluster.
Where can I get more information? Do I need two instances? Two databases?
What's the difference between active/active and active/passive?
Thanks!
Hello, Can anyone please explain how the failover processes works on a sql server 2000 2 node active/active cluster.
Given the following
You have 2 node active/active cluster NodeA & NodeB
Question
1. How many SQL instances need to be installed on each node?
2. If the answer to question #1 is one instance per node, then
say if NodeA fails NodeB will take over all the resources of NodeA
including the master database, How does that work , how can once instance (in nodeB) handle two master database i.e its own master database and the one taken over from NodeA.
Hi,
I've just setup an 2 node active/active sql cluster (my first). Both servers have exactly the same specification, 16GB of RAM each and SAN attached. My question is, how do I configure the min and max memory for each sql instance. I've read some where that I need to follow the 20-40-40 rule as, 20% for the OS, 40% for the active sql instance on the node and the other 40% is for the other sql instance if it fails over. Are there any other gotcha that I need to be aware of? Can someone share some light with me in regards to this? Thanks
Ken
We have an active/active node setup with SQL 2005. Does anyone have any samples of VBS I could use to see what node is actually taking requests at a certain time? What I want to determine is what the actual active node is.
Thanks.
I want to host 2 seperate SQL databases and wanted to know if it would be possible to run this in an active active cluster config which each database running on a different server.
The clustering would be there in the event of failure of one of the servers but for normal operation the two sql instances would be completely seperate.
Is this configuration possible and would this give the best performance and resiliance from a 2 server setup.
What do you think?
Help, I have an active/active cluster with SQL2k5 Ent with SP2 installed on node1 that is currently running live apps, I need to add the 2nd node to have fail over functionality but if I use the Change Install from Add or Remove Programs on the primary node to add the 2nd node I get the following error.
"The File 'c:....SqlRun_SQL.ms' is not a valid installation package for the product Microsoft SQL Server 2005(SQL2K5VVS01). Try to find the installation package 'SqlRun_SQL.msi' in a folder from which you can install Microsoft SQL Server 2005(SQL2K5VVS01).
No I assume this is because node 1 has had service pack two applied. Does anyone have instructions how I can add node two without having to completely uninstall Node 1, as the doc€™s with SQL2005 SP2 say it can not be removed, a complete uninstall of 2005 must be done???
Hi,
I can't seen to find any info on the exact version of OS and SQL one needs to run active / active cluster.
I want to run 2 window server 2003 box with SQL 2005 in an active / active mode. What version of windows 2003 and SQL2005 would I need?
Thanks
Frank
Hi
I have an active/active cluster and the second node failed and could not start all the instances are intact on the first node. Now we have built the second node and joined to the cluster group as well.
I am sure we dont need a install as all the instances are there so anyone know where I need to join the SQL cluster to talk to both the nodes
Thanks in advance
Anup
Anyone know of any differences in an active/active cluster and an active/passive cluster that would cause an application to work on an active/passive environment but not an active/active environment?
View 8 Replies View RelatedHi all,
1. is it possible to have both sql server 2000- and 2005 on a 3 node active/active/active cluster
2. if not is is possible to have sql server on an active/active/active cluster
regards,
joey