Hi everyone,I have 5 servers, all with identical databases just different data. Ihave a rather lengthy SQL statement (in a View) to hit one database andpull-in certain data, but I'd like to somehow run this same SQLstatement within the view but hit all 5 servers so we don't have 5different versions of this data to mess with.I'm not opposed to creating an update query in a stored procedure tohit all 5 databases and update a table or even do this within a DTS,but I'd prefer to keep it as simple as possible and as dynamic so theusers can simply run the view and get live data anytime based on all 5tables.Is this possible ???Thanks,rlangly
Hi! I'm using SQL Server 6.5 and have a question for you regarding views. Is it possible to create a view pulling information from 2 databases -- on 2 different servers? If not, is there a way to work around this?
Is it possible to create a view that spans over 2 servers? It uses 1 database from the first server and 1 database from the second. I don't know how to specify the location of the second database. If I put 'Server2.MISProd.dbo.work_orders', I get an error that "this object contains more than the maximum number of prefixes. The maximum number is 2"
I do have remote servers set up so that from each server, I am able to see the other. Is there any way to work through this?
If the two tables were on the same server and in the same database, I'd just write the following:
select TrainingEntry.EmpNumber ,Employee.EmployeeName ,TrainingEntry.TrainingDate ,TrainingEntry.TrainingDescription from TrainingEntry Left Outer Join Employee on TrainingEntry.EmpNumber = Employee.EmpNumber
The question is how do I handle going between two databases, and more importantly, how do I handle linking between two servers?
I was wondering if someone could help explaining how the SQL Server handles all incoming connections, I and a friend started a discussion about using the connection pool in ADO.NET or not in a specific case.
Usually when creating like an ASP.NET Page it's recommended to use the connection pool, because it optimizes the performance, by using already created connection, so we don't have to recreate the connection all the time. I have always thought that the connection in the connection pool had an open connection on the server. So 5 connections in the connection pool, would be 5 open connections at the server. But after having the discussion with my friend I am not so sure anymore.
Say that I would create a client application (.NET using ADO.NET) that connects to the database and work with that data. If I then have 1.000 clients and each client have a connection pool with 5 connections in it (I think that the default numbers for the connection pool), then there would be like 5.000 open connections on the SQL Server, where most of the connections actually never do anything more than hanging around and waiting... And then the connectionpool is not 1 per client but 1 per connectionstring.
So if my client scenario would access data from 2 different databases, there would actually be 10.000 open connections at the SQL Server. So now I think that there must be a server connection pool or something to handle the connection from the clients. So that there would only be like 10-50 open connections at the server for the 1.000 Clients that was connected.
How is it? Is there 1 open connection in the server for every connection in the connection pool? If that's the case, it would be better for the SQL Server if I don't not use the connection pool in the client, but instead open the connection when we need it, and then close it, and taking that little performance hit every time, to help the performance on the SQL Server.
Greetings,I have 3 servers all running SQL Server 2000 - 8.00.818. Lets callthem parent, child1, and child 2.On parent, I create a view called item as follows:CREATE view Item asselect * from child1.dbchild1.dbo.Item union allselect * from child2.DBChild2.dbo.ItemOn child1 and child2, I have a table "item" with a column named "id"datatype uniqueidentifier (and many other columns). There is anon-clustered index created over column "id".When I connect to the parent server and select from the viewSelect id, col1, col2, …. From item where id =‘280A33E0-5B61-4194-B242-0E184C46BB59'The query is distributed to the children "correctly" (meaning itexecutes entirely (including the where clause) on the children serverand one row is returned to the parent).However, when I select based on a list of idsSelect id, col1, col2, …. From item where id in(‘280A33E0-5B61-4194-B242-0E184C46BB59',‘376FA839-B48A-4599-BC67-25C6820FE105')the plan shows that the entire contents of both children item tables(millions of rows each) are pulled from the children to the parent,and THEN the where criteria is applied.Oddly enough, if I put the list of id's I want into a temp tableselect * from #bv1id------------------------------------280A33E0-5B61-4194-B242-0E184C46BB59376FA839-B48A-4599-BC67-25C6820FE105and thenSelect id, col1, col2, …. From item where id in (select * from #bv1)the query executes with the where criteria applied on the childrendatabases saving millions of rows being copied back to the parentserver.So, I have a hack that works (using the temp table) for this case, butI really don't understand the root cause. After reading online books,in a way I am confused why ANY of the processing is done on thechildren servers. I quote:================================================Remote Query ExecutionSQL Server attempts to delegate as much of the evaluation of adistributed query to the SQL Command Provider as possible. An SQLquery that accesses only the remote tables stored in the provider'sdata source is extracted from the original distributed query andexecuted against the provider. This reduces the number of rowsreturned from the provider and allows the provider to use its indexesin evaluating the query.Considerations that affect how much of the original distributed querygets delegated to the SQL Command Provider include:•The dialect level supported by the SQL Command ProviderSQL Server delegates operations only if they are supported by thespecific dialect level. The dialect levels from highest to lowest are:SQL Server, SQL-92 Entry level, ODBC core, and Jet. The higher thedialect level, the more operations SQL Server can delegate to theprovider.Note The SQL Server dialect level is used when the providercorresponds to a SQL Server linked server.Each dialect level is a superset of the lower levels. Therefore, if anoperation is delegated to a particular level, then Queries involvingthe following are never delegated to a provider and are always it isalso delegated to all higher levels.evaluated locally:•bit•uniqueidentifier================================================This suggests to me that any query having where criteria applied to adatatype uniqueidentifier will have the where criteria applied AFTERdata is returned from the linked server.Any ideas on the root problem, and a better solution to get the queryand all the where criteria applied on the remoted linked server?Thanks,Bernie
Hello, I want to transfer data in between two or more sql servers. Actually One server is on the web while others are in small networks in diffrent locations. I want to update the main server with the changes in local servers. My problem is if the connection goes failed in between process of data transfer then how will it be recovered that how much of data is uploaded and how much is left. Please I need help on this isue. Thanks in advance pronov
am an authenticated user of a remote data base I can log in using sql server management studio and add tables and even I can back up the database . Good.
But I want to get a copy of the database to my local computer Is there any way to do this?The problem is that i don't have access to the directory of sql sever pleases tel me a way that is possible just by using sql server or any add on on it
Hello, I have a developer here who wants to be able to access two databases on different servers with the same query statement. Both servers have SQL Server 7.0 ??? Any suggesstions?
We have a database that I would like to replicate on another server but am unable to use regular replication via publish/subscribe due to the fact that the production database has no primary keys on tables, only clustered indexes. The backup db needs to be as close to real-time synchronized as possible and will be in fairly active use most of the time. Has anyone had success in developing such a system? How did you do it and what are the pitfalls? Any advice would be greatly appreciated. Thank you. W.
I need to access data across my sql servers . All the servers are 6.5. Think MS DTC is the solution. But how to implement the same. Can somebody give me step by step instructions.
Not sure thisis the right forum for my question. I have to insert data from one table into another. The problem is that the 2 tables are on different servers and computers for that matter. I only need data that is in one specific table. What is the easiest and most efficient way to do that.
If I access the 2 computers via remote desktop from my computer and actually go and copy the data from the table in computer 1 and paste it inside the table in computer 2 it does paste the data.However, for some reason it doesn't paste all the data. The column datatype is ntext. I mean if the entry is for example 'hello world how are you today? blah bla blah' It will only paste 'hello world how are'
I will appreciate your help.
Many thanks
Whisky-my beloved dog who died suddenly on the 29/06/06-I miss u so much.
I've got a quick question here. I'm still quite new to SQL Server. My question is how to transfer file between SQL Servers. For example, i have been working on the database - updating or editing some tables in the SQL Server 2000 at my end. Then, i need to pass whichever tables got updated on to my client who also uses the SQL Server 2000. So we have two separate SQL Servers 2000. i wonder how to transfer data like tables between the two SQL Servers.
I need to feed head office sql server with the data from regional servers. Servers are spread through all continents Data input done locally on Head office server as well and plus need to ship data from other servers. So clarify this - Head office server is not standby one. Mirroring is out of the picture, I think.. Initially, I thought ship a log every 15 min and restore on Head office server but is this going to create an issue for the local data processing?
I need to append data from a database on one server to a table in a databaseon a different server. Both servers are running SQL 7. How can that be done?Thanks.
Ok..here is my problem. I have two SQL servers that I need to haveidentical, at least semi-real time data on. One is in a public DMZwith full access to and from the internet, and one is behind acorporate firewall and the box can get out to the internet but cannotbe hit directly from the internet in. The two are on seperatenetworks and cannot be connected via lan. Is there a way for me tohave semi-real time data transfers between the two to keep bothservers identical? I have thought that the server behind the firewallcould initiate an XML session with my dmz sql server and processupdates, but I am unfamiliar with how it would know what has changedon the remote server and how the remote server would know what haschanged on the server behind the corporate firewall. Any good ideas?ThanksDan Hirsch
What is the easiest way to synchronize all data and database objects between my development machine and hosting server? Is there any SSIS free script I can use?
I am studying indexes and keys. I have a table that has a fixed width of data to be loaded in the first column which is parsed in a view based on data types within the fixed width specifications.
Example column A: (name phone house cost of house,zipcodecountystatecountry) -a view will later split this large varchar string based column b: is the source filename of the data load (varchar 256) ....
a. would there be a benefit of adding a clustered or nonclustered index (if so which/point in direction on why)
b. is there benefit of making one of these two columns a primary key (millions of records) or for adding a 3rd new column as a pk?
c. view: this parses the data in column a so it ends up looking more like "name phone house cost of house zipcode county state country" each having their own column.
-any pros/cons of adding indexes (if so which) to the view instead of the tables or both for once the data is parsed?
Hi ! I have a textbox and a Search button. When the user inputs a value and press the button, i want a datagrid to be filled. The following code runs: Dim connect As New Data.SqlClient.SqlConnection( _ "Server=SrvnameSQLEXPRESS;Integrated Security=True; UID= ;password= ; database=dtbsname") connect.Open() Dim cmd As New SqlCommand Dim valor As New SqlParameter("@valor", SqlDbType.VarChar, 50) cmd.CommandText = "Ver_Contactos_Reducido" cmd.CommandType = CommandType.StoredProcedure cmd.Connection = connect cmd.Parameters.Add(valor) cmd.Parameters("@valor").Value = texto Dim adapter As New SqlDataAdapter(cmd) Dim ds As New System.Data.DataSet() adapter.Fill(ds) GridViewContactos.DataSource = ds GridViewContactos.DataBind() connect.Close() I drag a datagrid on the page and only changed its Id. Into the SQL database the stored procedure is the following: ALTER PROCEDURE [dbo].[Ver_Contactos_Reducido] (@Valor VARCHAR(100)) AS BEGIN SET NOCOUNT ON; SELECT NombreRazonSocial, Nombre, Apellido,TelefonoLaboral, Interno, TelefonoCelular, Email1, Organizacion FROM CONTACTOS WHERE NombreRazonSocial = @Valor OR Nombre = @Valor OR Apellido = @Valor OR TelefonoLaboral = @Valor OR Interno = @Valor OR TelefonoCelular =@Valor OR Email1 = @Valor OR Organizacion= @Valor END When i run the page i can't see the datagrid, and after i enter a text and press the button, nothing happens. What am i doing wrong?? Thks!!
I have a view that give me the data of all the batched. Now I am using a query on view to get a single batched data. when I am using direct query it was taking 0 sec but when I am using Through view "select * from myView where batched=2" then its taking 30 mnt.
I have tow server on the same intranet. One server has a sql server 2000 database and the other one has SQL server 2005 databse. The sql 2000 database has a table called employee. When ever a new employee is inserted in the database i would like the same values to be sent to the sql 2005 database. But this cant be done on the application level. It has to be done in the database. The application level can not be changed. I was thinking a trigger but how to achieve the writing from one database to another. If they were on the same server then it would be easier but because they are on different servers i dont know how to do it. Has anyone had similar issue before? Any help is apreciated.
my problem is about the slow execution of a query.
I have two database located in two different servers. The servers are linked with the linked server connection made with the enterprice manager.
The databases structure is the same and I copy some data from a database to the other with the following query:
INSERT INTO DATASERVER.RESULTS.dbo.Tab_Tests SELECT * FROM LINESERVER.WIP.dbo.Tab_Tests WHERE ID_Result = '{76271FC1-9470-4EF7-A403-000CF75C2215}' OR ID_Result = '{08C8EEB9-CD22-4CF9-8269-8C1CC58C752B}' OR ID_Result = '{B7B7EED1-36E4-48FA-9636-ABBE62AAE04D}' OR ID_Result = '{8F7BA69E-D2CE-4EB2-BBC4-AFFA165CE0CE}' OR ID_Result = '{273CB805-945F-4EFA-AE20-BC4E0898A19F}'
Everything works till the database grows up more than 400 MB.
Also if I select one result, that consist of some records, the query is very slow and the CPU is working over the 75 %.
I ask you if my working way is corret or if you have some solution or some explanation for me.
Hi, I'm looking for an artical or Someone who can explain me what is the best way to transfer data between two remot database?
I'll Explane: two business have local SqlServer in their office. 1 of business need to get Specific data from other. each database is protected. how can I read ake information of it?
I am preparing a new website that will contain names, address and phone numbers of people in my region of Costa Rica. Will I be able to post a database prepared in Visual Basic 2005 Express / SQL Server 2005 Express on the website's MySQL Server and utilize the data to populate webpages?
If not, what should I use to prepare the database and drive the webpage.
New to SQL and VB Don Johnson Latitude 8 Lodge Costa Rica
I have user that we just migrated his Access database to SQLServer. All went well with the migration, but then he came up withanother requirement to be able to replicate the database to a localSQL server living on the hard drive of a laptop. Before the migrationhe just copied the entire Access databse to the lap top.I tried using the Copy SQL Server Objects Task to move thenecessary tables from the production server to the laptop, but noticedit doesn't copy over the table Indexes/keys identiy fields etc. Iended up backing up the production database and restoring it to thelaptop database, but wondered if there is any way to move the tables,with their properties from one server to another? I know I can setup the backup process to run as scheduled, but the problem is the dataneeds to be moved on an irregular time table. I thought about justwriting code on the remaining Access front end to empty the localtables and then query the data from the production side to reloadthem, but I'm sure there's an easier way.Any suggestions would be appreciated.Thanks,Tom
I'm working on an SSIS package whose job it is to push data from x # of tables to x# of servers. Right now, I have it implemented with nested ForEach loops. ForEach Server loop inside of a ForEach table loop. It works great, but it will take too long as it is serial. I need a way for the inner operation to take place in parallel. In SQL 2000, the way I 'm doing this is by spawning a SQLAgent job per server. I could always do this here as well, but I'm interested in finding out if there is a way to do this with a single package.
I'm okay with process the table serially, but for each table I'd like to be able to parallel the push to the servers. Can't do it with multiple data flows because there are N # of servers being pushed to.
I'm using EncryptByKey to encrypt data in my SS2005 database. Since our server is really slow to access from home to work on, I used the Database Publishing Wizard and installed the db to work on at home. Then I created the certificate and symmetric key in my home db.
When I pull info using the DecryptByKey on our database at work on Windows 2003 Server, no problem, the data is decrypted. However, the same data does not decrypt at home on my Windows XP computer. I'm using TripleDes on both machines for the symmetric key (AES won't work on XP).
--To create my cert and key:
USE My_DB; CREATE CERTIFICATE MyCert ENCRYPTION BY PASSWORD = 'some password' WITH SUBJECT = My Data', START_DATE = '01/01/2007', EXPIRY_DATE = '01/01/2099'; GO
CREATE SYMMETRIC KEY MyKey WITH ALGORITHM = TRIPLE_DES ENCRYPTION BY CERTIFICATE MyCert; GO
To encrypt:
OPEN SYMMETRIC KEY MyKey
DECRYPTION BY CERTIFICATE MyCert
WITH PASSWORD = 'same password as above';
Insert my record, use scope_identity to return primary key into @CustomerID.
INSERT INTO [Customers] (EncryptByKey(Key_GUID('MyKey'), @DataToEncrypt, 1, CONVERT( varbinary, @CustomerID)))
CLOSE SYMMETRIC KEY MyKey
To decrypt:
SELECT CONVERT(varchar(3925), DecryptByKey(EncryptedField, 1, CONVERT( varbinary, @CustomerID))) as PlainTextData
FROM Customers
WHERE (CustomerID= @CustomerID)
Everything works fine when I run the decrypt query on the database on our work server. But I'm not getting decrypted data at home. Is the symmetric key or certificate machine specific? If so, that will cause a huge problem when we deploy to a production server.
My customer has a .NET application that reads meta data from SQL Server, Oracle, DB2, and several propritary databases. Because each DBMS stores the meta data using various techniques, they have written custom code for each DBMS. They are working on a generic ODBC/OLEDB suppport, but in the interim I was trying to use SQL Server to link to an Access database. The Access linked server works fine for queries in Query Analyzer, but I would like to be able to programatically read the metadata for an Access DB (tables, columns, types, etc) via the linked server. SQL Server's usual mechanism for storing meta-data in the Master database aparently is not used for Linked Servers.
Does SQL Server expose Linked Server meta data? How would one retrieve this meta data if it is exposed?
I have recently moved from a Microsoft SQL Server 2000 to a SQL Server 2005.
In the good old Enterprise Manager, when I imported a table from a SQL server to another, I could choose "Copy objects and data between SQL Server databases". When choosen, all primary keys, and default values was copied.
My question is: Is it possible to do the same in Microsoft SQL Server Management Studio with SQL Server 2005? And how do I do it?
I have tried using the "SELECT * INTO NewTable FROM OldTable" statement, but it just drops all information about primary keys and default values.
I want to migrate from one machine to another is it wise to use SSIS "Copy Objects and Data Between SQL Servers" task to accomplish this....migration both data and metadata (in master,model,and msdb ) databases?
