SQL 2012 :: Switching From One Database To Another Within The Same Script?
Jan 28, 2015
I would like to know how I can switch from one database to another within the same script. I have a script that reads the header information from a SQL BAK file and loads the information into a Test database. Once the information is in the temp table (Test database) I run the following script to get the database name.
This part works fine.
INSERT INTO @HeaderInfo EXEC('RESTORE HEADERONLY
FROM DISK = N''I:TESTdatabase.bak''
WITH NOUNLOAD')
DECLARE @databasename varchar(128);
SET @databasename = (SELECT DatabaseName FROM @HeaderInfo);
The problem is when I try to run the following script nothing happens. The new database is never selected and the script is still on the test database.
EXEC ('USE '+ @databasename)
The goal is switch to the new database (USE NewDatabase) so that the other part of my script (DBCC CHECKDB) can run. This script checks the integrity of the database and saves the results to a temp table.
I’m looking for clearity on partition switching. The idea is to use many BULK INSERT statements into table dbo.X_n in parallel and when BULK INSERT for table dbo.X_n is completed, switch dbo.X_n into dbo.bigdaddy. I think this is the fastest way to upload a couple hundred GB of data.
In learning about partition switching (in part) from The Data Loading Performance Guide under Partition SWITCH, I hear the instructions to say copy the main table exactly to become a target. But in that same step (#1), I read that we need to change the default file group of the target (dbo.X_n) from the default file group. Then it says I need to match indexes and lists the filegroup as something we need to match with the main table.
As an overview of the partition switching strategy, I think the whole point of BULK INSERT with partitioning is to have seperate files (in same group) to enable concurrent uploading where each table has its own file. Once the upload is completed to a table (dbo.X_n) then we do the partition switch into the main table (dbo.bigdaddy). The data we just uploaded doesn’t actually move, just the metadata for it.
“Don’t have the same filegroup on your target as the main table. You must have the same filegroup on your target as the main table.”
I recently created a form to MS access database web application and it worked fine on my local cpu. When I published the same web app to my hosting server the program wouldn't work but I couldn't understand. Well, after researching the matter I found out my hosting server doesn't allow ASP.NET applications that use the aspcompat page directive because of security trust levels. So, I decided to switch to a SQL database but I can't even test the web application on my local cpu because I get this error "An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)". So, once again I researched this error on the internet and found these two websites with incite to what is causing the error. http://support.microsoft.com/default.aspx?scid=kb;EN-US;914277http://www.cryer.co.uk/brian/sqlserver/hresult_0x2%20npp_error_establishing_connection.htmI tried all the remedies suggested except for the cmd procedure in the second lind because I don't understand how to run that command in sqlcmd from start>run. Anyway, I can't get my web application to work and I wanted to know if someone can assist me. I use the following programs:MS Visual Web Developer 2005 Express EditionMS SQL Server Express 2005 Here is my code:sqlForm.aspx<%@ Page Language="VB" Debug="true"%><%@ Import Namespace="System.Data" %><%@ Import Namespace="System.Data.SqlClient" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server">Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Dim connContacts As SqlConnectionDim strInsert As StringDim cmdInsert As SqlCommandconnContacts = New SqlConnection("Server=MSSQL$SQLEXPRESS;database=contacts")strInsert = "Insert users ( name, email, comments ) Values ( @name, @email, @comments )"cmdInsert = New SqlCommand(strInsert, connContacts)cmdInsert.Parameters.AddWithValue("@name", txtName.Text)cmdInsert.Parameters.AddWithValue("@email", txtEmail.Text) cmdInsert.Parameters.AddWithValue("@comments", txtComments.Text)connContacts.Open()cmdInsert.ExecuteNonQuery() Response.Write("The form information was inserted successfully.") connContacts.Close() txtName.Text = ""txtEmail.Text = ""txtComments.Text = ""End Sub</script><html xmlns="http://www.w3.org/1999/xhtml" ><head runat="server"><title>Untitled Page</title><style type="text/css">body {background-color:aqua}</style></head><body><form id="form1" runat="server"><div><asp:Label ID="Label1" runat="server" Text="Name:" Width="120px" ForeColor="#FFFFFF"></asp:Label><asp:TextBox ID="txtName" runat="server" Width="200px"></asp:TextBox><br /><asp:Label ID="Label2" runat="server" Text="Email:" Width="120px" ForeColor="#FFFFFF"></asp:Label><asp:TextBox ID="txtEmail" runat="server" Width="200px"></asp:TextBox><br /><asp:Label ID="Label3" runat="server" Text="Comments:" Width="120px" ForeColor="#FFFFFF"></asp:Label><asp:TextBox ID="txtComments" runat="server" TextMode="MultiLine" Width="200px"></asp:TextBox><br /><asp:Button ID="Button1" runat="server" Text="Submit" Width="110px" OnClick="Button1_Click" /></div></form></body></html>Please help! Note: I'm trying to test on my local cpu first with the intention of publishing to my hosting server.
At the moment my asp.net app is working ok and I can connect to the database using windows authentication, however i'm trying to use sql authentication on my local computer.i'm using sql server studio at the moment to manage the database. And tried numerious combinations of things to try and get it working and allow me to connect to the database using SQL authentication but still no luck :(can anyone give me some rough step by step instructions to setting up the sql username and password for forms authentication and activating it for a certain database?thanks
If I have a connection open which is in database master, can I switch to another database within that connection without having to close the connection and recreating it?
Guys! I'm using SQL Mail to send out Emails to Customers re: outstanding Invoices. I also use SQL Mail on the same box to send out emails to our Sales Reps with summaries of outstanding invoices. Now, I've set up multiple outlook profiles on the server. I tried using
DOES NOT WORK!!! the profile does'nt switch at all. SQL Mail sends out all the emails using the profile that it started with. How can I use xp_startmail and xp_stopmail to switch between different user profiles.
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We have an active database that sits on SQL Server 2000 that currently has per seat license...but now want to switch to per processor. If I go to ControlSQL Server 2000 License Set up...it doe not give me the option to choose per processor.
Do I need to un-install/re-install SQL Server 2000 and choose the per processor choice and then re-attach our database ?
I sometimes have problems when running index rebuilds due to the tran log growing too big. MS suggest switching the db from full recovery mode to bulk-logged mode fur the duration of the rebuild. Question is, when you switch a db from full recovery to bulk logged, does that invalidate the tran log backups up to that point? When the db is switched back into full-recovery mode, are the following tran log backups still in sequence?
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How can I make a specific connection/connection string permanent for a specific application?
I've got a situation where I need to execute portions of a script against every database on a given instance. I don't know the name of all the databases beforehand so I need to scroll through them all and call the "use" command appropriately.
I need the correct syntax, the following won't work:
DECLARE DBS CURSOR FOR SELECT dbname FROM #helpdb ORDER BY dbname
OPEN DBS
FETCH NEXT FROM DBS INTO @dbname
WHILE @@FETCH_STATUS = 0 BEGIN
USE @dbname
The last line - the "USE" statement - is invalid. The following for example works:
USE master
But when supplied a declared variable a syntax error results for the use command because it expects an identifier.
So .. what is the correct syntax to pass a declared parameter to "USE", or is there another way to meet this requirement?
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It is simple question, just slipped out of my mind at this time...... how do we change Security Context for 2005 version from network to local system. thanks,
One of our client application launches a execuatable on server by calling master..xp_cmdshell. We are migrating to SQL 2005 and I would like to use the Context Switching feature
We have sql login client? which is used by clinet application and has very least privelge and have only required access to requried database and tables. xp_cmdshell is disabled by default on our server and I would like to enable xp_cmdshell, launch the executable on the server and disable xp_cmdshell.I have created another SQL Login Bob? and is member of sysadmin. The below SP is created by logging in as Bob?. My objective is to grant execute access on this SP and grant impersonate access to sql login client? . So that client application connecting to SQL server can launch the executable by calling the SP
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When I try to execute (exec [Bob].[jtr_enable_xp_cmdshell] ) the above SP by logging in as Bob, Im getting the below error
Msg 15247, Level 16, State 1, Procedure sp_configure, Line 94 User does not have permission to perform this action. Msg 5812, Level 14, State 1, Procedure jtr_enable_xp_cmdshell, Line 4 You do not have permission to run the RECONFIGURE statement. Msg 15123, Level 16, State 1, Procedure sp_configure, Line 51 The configuration option 'xp_cmdshell' does not exist, or it may be an advanced option. Msg 5812, Level 14, State 1, Procedure jtr_enable_xp_cmdshell, Line 6 You do not have permission to run the RECONFIGURE statement. Msg 15247, Level 16, State 1, Procedure sp_configure, Line 94 User does not have permission to perform this action. Msg 5812, Level 14, State 1, Procedure jtr_enable_xp_cmdshell, Line 7 You do not have permission to run the RECONFIGURE statement.
Please note the SQL Login Bob? is a member of sysadmin fixed role. Thank in advance for you help.
I need to allow only a specific group of users to use a linked server. Rather than granting each user access in the linked server I create and give access to a local SQL login "link_user" and then grant the group impersonate to "link_user". The folllowing statements then work fine:
EXECUTE AS LOGIN = 'link_user'
SELECT * FROM OPENQUERY(linked_server, 'SELECT * FROM ...)
But when I use the exact same statements in a stored procedure I get the folllowing error:
Msg 7416, Level 16, State 1, Procedure linktest2, Line 5
Access to the remote server is denied because no login-mapping exists.
I need to be able to work with the result set which is why I use OPENQUERY rather than EXECUTE... AS... AT which works fine also in stored procedures!?
Is there another workaround then to create all users in the linked server security?
I need to pull data from an Excel Workbook (DTS Excel Source) where the data is stored in worksheets that are each named one of the twelve months of the year. The package is fired by a job that runs once a month. Currently, I have to go into the select statement of the Excel source before the process runs and change the name of the Worksheet that the data is pulled from.
How can I set up the sql statement for the Excel source so that I can pull from the Worksheet that contains the name of the current month?
Hi all--I used the following type of script to migrate tables, views and stored procedures from 'dbo' to 'hqmsuser': alter authorization on dbo.PK_T_PQ_MASTER to HQMSUSER alter schema HQMSUSER transfer dbo.PK_T_PQ_MASTER go
This was per recommendations from the BOL to use instead of the 'sp_changeobjectowner' procedure. I returned the following error:
Msg 15346, Level 16, State 1, Line 3 Cannot change owner for an object that is owned by a parent object. Change the owner of the parent object instead. Msg 15347, Level 16, State 1, Line 4 Cannot transfer an object that is owned by a parent object.
How do I find and change the parent object on this from 'dbo' to a non-dbo schema ownership?
I’m looking for clearity on partition switching. The idea is to use many BULK INSERT statements into table dbo.X_n in parallel and when BULK INSERT for table dbo.X_n is completed, switch dbo.X_n into dbo.bigdaddy. I think this is the fastest way to upload a couple hundred GB of data.
In learning about partition switching (in part) from The Data Loading Performance Guide under Partition SWITCH, I hear the instructions to say copy the main table exactly to become a target. But in that same step (#1), I read that we need to change the default file group of the target (dbo.X_n) from the default file group. Then it says I need to match indexes and lists the filegroup as something we need to match with the main table.
As an overview of the partition switching strategy, I think the whole point of BULK INSERT with partitioning is to have seperate files (in same group) to enable concurrent uploading where each table has its own file. Once the upload is completed to a table (dbo.X_n) then we do the partition switch into the main table (dbo.bigdaddy). The data we just uploaded doesn’t actually move, just the metadata for it.
When I read the instructions linked above, I hear “Don’t have the same filegroup on your target as the main table. You must have the same filegroup on your target as the main table.”
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I could not able to find Forums in regards to 'Log Shipping' thats why posting this question in here. Appriciate if someone can provide me answers depends on their experience.
Can we switch database recovery model when log shipping is turned on ?
We want to switch from Full Recovery to Bulk Logged Recovery to make sure Bulk Insert operations during the after hours load process will have some performance gain.
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