Get Original Login Name After Context Switch
Jan 22, 2008
Does anyone know how to get the original Login name, while a context switch is in effect.. For example during the use of Original login to SQL is Wayne
Then Execute as Test
Now I need to know that Wayne is the Login and not Test
none of the standard things work, they all use the current context (suser_sname, etc)... Books online includes the following text
SYSTEM_USER returns the name of the currently executing context. If the EXECUTE AS statement has been used to switch context, SYSTEM_USER will return the name of the impersonated context. Use the LOGIN() function to return the name of the original login during impersonation.
But I cannot find any function called LOGIN() anywhere?
Suggestions>?
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Sep 28, 2007
There are some concept about context switch block me .
---executor: dbo
create user u1 without login
go
create table t
(
col int
)
go
create proc proc1
with execute as 'u1'
as
insert into t values(1)
go
exec proc1
I think proc1 can't be run successfully beacuse the executor of proc1 is u1 and
I didn't grant any permission to user u1. So it will return a error message like The INSERT permission was denied on the object 't', database 'tempdb', schema 'dbo'
To my surprise, the "exec p1" command could run successfully..
Why?
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Jun 5, 2015
I have 2 databases one for datawarehouse and one for reporting.
I created a view in the reporting database joining several tables from datawahourse. The view is meant for a users who uses powerpivot. It will contain a few million of rows.
I set up a role in the reporting database. I assigned select rights to that role on the view.
When the user wants to access the view, he can see the view but a select gives
The server principal "pp_user" is not able to access the database "datawarehouse" under the current security context.
How can I fix this ? I don't want to give the user select rights on tables in the datawarehouse.
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Nov 2, 2015
I have setup a SQL 2014 server with mixed authentication. Below is sequence.
1. Created a server. Added server to a domain & logged out.
2. RDP to the server using a local account. Installed SQL 2014. Kept the services to run using default NT Authority accounts during initial setup. SQL was installed in mixed mode (SQL & windows authentication). a specific 'sa' pwd was set.
3. After initial setup, I changed all SQL services Logon account to be respective domain accounts. Made sure all services restarted, up & running.
Now, for the same 'sa' SQL login account -
--> if I RDP to the server using local system admin & connect to SQL studio with 'sa' (SQL authentication) - it works.
but --> if I RDP to the server using my domain account (which is already an admin on SQL & windows), but connect SQL studio with the Same 'sa' (SQL authentication) - it fails & gives - unable to login 'sa'... ; standard error code : 18456.
Question : How can be the same 'sa' login, is acting different based on with what user context I RDP to the server ?
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May 29, 2007
We are looking at developing an SQL Server 2005 Database and I would like to use Windows Authentication rather than SQL Server Authentication to connect our client app.
In our development environment, we have two Servers, one being used as a file server and the other as an SQL Server. We have now set up a domain using the file server as the domain controller. (We had previously been set up to use a workgroup).
I have set up an active directory group called SqlDevelopers and added an active directory user called Jonathan to it.
On the SQL Sever, in management studio, I have set up a new server login which uses windows authentication called DomainSqlDevelopers. I used the GUI to verify I could see the domain and the group.
The default database is set to a test database on the server. A user in the test database is mapped to the DomainSqlDevelopers and given the Roles dbo, db_datareader, db_datawriter.
To test the log in, on the server, I logged out as administrator and in as Jonathan. I could successfully access the server through management studio using windows authentication.
However, if I log in as Jonathan on my client PC and try to access the SQL Server using management studio and windows authentication, I have problems.
The first time I try I will get a timeout error. If I try again will get either:
Login failed for user ''. The user is not associated with a trusted SQL Server connection
Or
Cannot generate SSPI context
I can€™t determine any pattern to which of the above errors I get.
However, if I log in as administrator on my client PC, I can connect to the server using management studio and windows authentication.
Sounds like Active Directory/Domain or other Network issue (Not really my area). I would be grateful for any help.
Thanks,
Jon
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Oct 27, 2004
Hi,
Im getting this error when attempting to retrieve data from an sql database.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Cannot open database requested in login 'projectAllocations'. Login fails. Login failed for user 'sa'.
Source Error:
Line 13: objConn = New SqlConnection( "Server=LAB303-066NETSDK; Database=projectAllocations; User ID=sa;Password=mypassword")
Line 14: objCmd = New SqlCommand("SELECT * FROM project_descriptions", objConn)
Line 15: objConn.Open()
Line 16: objRdr = objCmd.ExecuteReader()
Line 17: While objRdr.Read()
Source File: C:finalyearproject2sample.aspx Line: 15
Please Help!! Im a beginner to this, so if anyone knows the answer, take baby steps when explaining. Thanks
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Jul 27, 2005
Been looking through the forums for a solution to this problem.I already tried granting access through statements such as:exec sp_grantloginaccess N1'machineNameASPNET'But they don't seem to work.. i vaguely remember seeing somewhere a DOS command line statement that grants access to the ASPNET_WP and that fixed my problem before on another computer.. but this is a new computer and i forgot to write down the command.Can anyone help explain and propose a solution to my problem. Many thanxs.
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Dec 19, 2003
I am using the MSDE to connect to my ASP.NET application. I get this error after clicking the login button of my login page. Anyone know why this would happen?
Thanks for any help,
Cannot open database requested in login 'DataSQL'. Login fails. Login failed for user 'serverASPNET'.
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Sep 2, 2007
Hi All
Server 2003 standard edition, MSsql 2005 standard edition
As I understand it server 2003 standard only supports 4gb. Does this mean I can only use up to 4gb as the maximum memory for server 2005?
If that is the case I would like to use the 3GB switch, and leave the other gig for other apps. If I set the 3GB switch in boot.ini do I then also have to enable AWE (which I can't seem to do) or can I forget about AWE altogether?
Many thanks
Martin
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Apr 10, 2007
in configuring AWE whether i need use both 3GB in boot.ini and AWE Enabling option in SQL Server
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Jul 23, 2005
from the December 2004 _Redmond Magazine_, "Finding Gold in Yukon":http://redmondmag.com/columns/artic...ditorialsID=838"Developers will also pick up the usual new-version enhancements to T-SQL,including error handling, recursive queries, a ROW_NUMBER function, a PIVOTrelational operator and more."ROW_NUMBER???? What possible purpose could that have???
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Mar 29, 2007
Hi,
I got an issue with encrypt and decrypt. I encrypted a data, say 'ok', then I decrypt the encrypted data, but what I got is not 'ok'. but if I encrypt a column, then after decryption, those data asr same with the original data in that column.
In my case,
...
create table mytable ( column Password varbinay(128) )
...
create symmetric key with certificate
...
OPEN SYMMETRIC KEY Sym_Key_01
DECRYPTION BY CERTIFICATE Cert;
UPDATE mytable
SET Password = EncryptByKey(Key_GUID('Password_01'),'ok')
select CONVERT(nvarchar, DecryptByKey(Password)) AS "Decrypted Password" from mytable
here, I didn't get the value 'ok' but a another wierd word (like a chinese word).
does someone know the reason?
Thanks,
Jone
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Dec 12, 2002
Hi,
We have a standard Win 2K server and SQL2000 Enterprise edition on our DELL server.
Will it be possible to add a /3 Gig switch to boot.ini and make sql server to use 3 gig of RAM and the OS with 1 Gig of RAM.
This a live server website with heavy transactions more than 100 Transactions per minute.
We are planning to do a Transactional replication against 4 databases (publisher) with remote ditributor.
The reason why I am asking about this RAM increase is for this replication. Or is it Ok to have the 2 Gig RAM for this environment +replication.
Please give me a suggestion, how to proceed with this issue as i am concerned about memory especially for replication.
(4 Database sizes are 20 gig,7 gig,5 gig,5 gig)
Thanks,
Anu
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Nov 9, 2005
How do I replace month with day value and day value with month.
Example:
2005-02-09 00:00:00.000
replace with
2005-09-02 00:00:00.000
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Oct 4, 2007
Dear all,
is there any switch case like we have in C language....
in sql server?
Vinod
Even you learn 1%, Learn it with 100% confidence.
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Jul 20, 2005
Hi,Is it possible to switch to another user's credentials after logging in? Iseem to remember that there is a stored procedure for this, but I can't finddetails anywhere. I want to temporarily suspend my login's admin privilegesand become an "ordinary" user, for testing purposes.Thanks,Peter
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Aug 17, 2007
I am trying my first sliding partition scheme with 2005, and I am getting the following error...
ALTER TABLE SWITCH statement failed. Check constraints or partition function of source table "ScanStoreAggregateLoad' allows values that are not allowed by check constraints or partition function on target table "ScanStoreAggregateTest'.
I have gone over the functions and constraints a gazillion times. The columns are set to Not Null. The constraints are set to AND NOT NULL. The constraint values align and align with the function. But still I get the failure. Any help would be greatly appreciated. Here are the definitions:
CREATE PARTITION FUNCTION pfn_ScanStoreAggregate(int)
AS
RANGE LEFT FOR VALUES
(19224,
19225,
19226,
19227)
CREATE TABLE dbo.ScanStoreAggregateTest(
ProductID int NOT NULL,
DateKey int NOT NULL CONSTRAINT ck_ScanStoreAggregateRange CHECK ((DateKey BETWEEN 19224 AND 19227) AND (DateKey IS NOT NULL)),
Span tinyint NOT NULL,
LocationID smallint NOT NULL,
WeeksTY tinyint NOT NULL,
WeeksLY tinyint NOT NULL,
UnitsTY numeric(12, 2) NOT NULL,
UnitsLY numeric(12, 2) NOT NULL,
SalesTY money NOT NULL,
SalesLY money NOT NULL,
CostTY money NOT NULL,
CostLY money NOT NULL,
ACVTY money NOT NULL,
ACVLY money NOT NULL,
SalesPerMMACVTY money NOT NULL,
SalesPerMMACVLY money NOT NULL,
) ON ps_ScanStoreAggregate (DateKey)
CREATE TABLE dbo.ScanStoreAggregateLoad(
ProductID int NOT NULL
,DateKey int NOT NULL
,Span tinyint NOT NULL
,LocationID smallint NOT NULL
,WeeksTY tinyint NOT NULL
,WeeksLY tinyint NOT NULL
,UnitsTY numeric(12, 2) NOT NULL
,UnitsLY numeric(12, 2) NOT NULL
,SalesTY money NOT NULL
,SalesLY money NOT NULL
,CostTY money NOT NULL
,CostLY money NOT NULL
,ACVTY money NOT NULL
,ACVLY money NOT NULL
,SalesPerMMACVTY money NOT NULL
,SalesPerMMACVLY money NOT NULL
) ON DataAggregates
ALTER TABLE dbo.ScanStoreAggregateLoad
WITH CHECK
ADD CONSTRAINT ck_ScanStoreAggregate19227_DateKey
CHECK ((DateKey = 19227)
AND (DateKey IS NOT NULL))
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Dec 10, 2006
Hello,
I read a lot of artical but still can't understand.
I have SQL 2005 ent edition 32BIT on Windows 2003 Ent R2 32 bit.
I have 4GB on my machine.
What switch I need ton the boot.ini
/3GB
/Userva=2900
/PAE (is this only if I have more than 4GB?)
Thanks
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Jun 7, 2007
hi out there
On our Windows 2003 servers w. sp1 and running MS SQL Server 2000 w. sp4 we
see from time to time that we get this error "cannot allocate 64k
continous memory" or "SQL Server could not spawn process_loginread thread"
which could be caused by nothing left in the "Memtoleave" pool - I have now
search for advice on how to determine the values for the -g-switch - but
without much success - and if I just go for the "try&error" concept my
sql-server just allocates less and less ??? - ehh - in which units are the
parameters for the -g option specified - bytes, kilobytes, mbytes - 4k block
???? Any suggestions for measuring the actual running value of this pool -
memtoleave ??
best regards /ti
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Jun 18, 2007
Hey again,
So here's what I'm trying to do: I have three columns of data. Sometimes only one of the columns will contain a value while others may contain a null. If two or three contain a value it will be the same. So if I'm building a table in the layout designed and I want the value of the table to be the value stored in these columns. In pseudocode it looks like this:
Switch(column1 and column2 are null, value = column3, if column1 and column3 are null, value = column2, otherwise, value = column1)
Something like that where column1 is the default so if column 1 has a value then set the textbox value to it otherwise find a column that has it. I know that at least one column will definitely have a value. Anyone that can provide guidance on how to execute these I would appreciate it greatly.
Thank you!
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Apr 24, 2006
When using @original_{0}, how does this work if you are using a stored procedure instead of inline SQL? For example, if my update parameters are like this :
<UpdateParameters>
<asp:Parameter Type="String" Name="ProductType" />
<asp:Parameter Type="String" Name="OpportunityType" />
<asp:Parameter Type="Double" Name="Value" />
<asp:Parameter Type="String" Name="Probability" />
<asp:Parameter Type="Int32" Name="OpportunityID" />
</UpdateParameters>
And my stored procedure like this :
CREATE procedure dbo.UpdateOpportunity
( @ProductType int, @OpportunityType int, @Value money, @Probability int, @OpportunityID int)
as
update Opportunity set ProductType = @ProductType, OpportunityType = @OpportunityType,[Value] = @Value, Probability = @Probabilitywhere OpportunityID = @OpportunityID
Do I need to change both cases of @OpportunityID in my stored procedure to @original_OpportunityID for it to work?
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Dec 7, 2006
Hi All,
How can I find out the original size of the database?
Thanks.
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Sep 21, 2005
How can I find out the original size of the Data and Log files?TIARob
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Nov 14, 2007
I managed to get fuzzy grouping working. The relevant output (_key_in and _key_out) are stored in a new table that is a copy of the old table + fuzzy grouping columns.
How do i get SSIS to store the _key_in and _key_out in the original table?
The new matching column _key_out refers to the new key: _key_in. How could i get SSIS translate that to a matching column that refers to my original key?
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Jun 9, 2004
Starting to play around with SQL server at work and this is my question:
In the query design mode in access I can make one of the fields an expression that is driven by a built-in switch function.
i.e. Switch([CategoryName] Like "Beverage","Drink",[CategoryName] Like "Cheese","Dairy")
This results in the additional column field I created to display "Drink" for each record that has the CategoryName = "Beverage", and "Dairy" for "Cheese".
Can I do something like this in SQL server in the view designer itself, or do I need to make a user defined function and call it?
Thanks in advance for any help.
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Jun 26, 2004
Any One Tell me how i can use N'Switch in SQL Server Stored Procedure .
When I use Such a this syntax i am encountered and stoped with a error.
the is below(Stoerd Prdocedure Code)
~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
CREATE proc sp_check_userpass(@username nvarchar(50),@password nvarchar(50),@first nvarchar(50),@last nvarchar(50),@email nvarchar(50),@stage int )as
declare @cnt int
begin
select @cnt=count(*) from member_info where (@username=username and @password=password)
if(@cnt=0)
begin
insert into atable(first,last,username,password,stage) values(@first,@last,@username,@password,@stage)
end
else
return @cnt
end
GO
~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-
Other thing is that when exec this store proc it must be return a value return back to the @cnt but it is return only This( The command(s) Completed succefully).
Any One guide me how i can must be do .
i must clear it that i am using this query in ASP.NET SqlClient Object To Execute Query.
Thanx In Advance. ArQa
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Jan 19, 2007
Hello everyone, thanks in advance for reading. I'm new to reports and have tried searching for my answer with no luck. Any direction would be great.
Here is the issue, I have 3 colums in the dataset which display String data ("High", "Medium", or "Low")
I've added a column to the table on the report where I would like to convert the value of "High", "Medium" and "Low" to 3,2,1 respectively then SUM these numbers.
Is this possible? I've tried several variations of the code below--maybe it's not possible to do what I want? Thanks again for your time and help.
Fields!PP.Value is set to:
=Switch(Fields!Avail_Rank.Value = "High", 3, Fields!Avail_Rank.Value = "Medium", 2, Fields!Avail_Rank.Value = "Low", 1)
=Switch(Fields!Volume.Value = "High", 3, Fields!Volume.Value = "Medium", 2, Fields!Volume.Value = "Low", 1)
=Switch(Fields!Integ_Rank.Value = "High", 3, Fields!Integ_Rank.Value = "Medium", 2, Fields!Integ_Rank.Value = "Low", 1)
=Sum(Fields!Avail_Rank.Value + Fields!Volume.Value + Fields!Integ_Rank)
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Aug 16, 2007
I have two SQL servers. One licensed for 2000 Standard Edition licensed under the processor model. The other is SQL 2000 Enterprise Edition licensed under the user cal model.
I want to switch these Editions and licensing models. My production server needs the Enterprise Edition and I want to put the processor licensing model with it. I want to put the Standard Edition on my reporting server with the user cal licensing model.
I have the instructions to upgraded Editions and it is straight forward. Can I use this procedure for both servers and not have issues?
Thanks
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Apr 5, 2007
Hi,
I want to use switch - case statement in T-SQL stored procedure.
Can any one help regarding the same..?
for e.g.
switch (exp)
{
case 1 : stmt 1; break;
case 2 : stmt 2; break;
case 3 : stmt 3; break;
& so on.......
}
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Feb 11, 2002
I have a tempdb that was created at 1Gig. I don't know why but I want to shrink it below the original creation size. Is there a way to shrink this file or create a new file and delete the old?
I have tried shinkfile and shrink database with no luck.
Thanks Jeff
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Sep 10, 2004
Hello, everyone:
I have a table like:
ColName
b
b
b
d
d
d
a
a
c
c
c
I use DISTINCT to filter duplicated row. I want to get the return by original order like:
b
d
a
c
However, SQL Server re-order it if using DISTINCT and return like:
a
b
c
d
Can any one have the idea to handle that? Thanks
ZYT
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Sep 29, 2005
Hi all,
I restored a backup of a database running SQL Server in W2K to my own laptop (Windows XP) for report testing pourposes. The restore worked perfectly, but when I ran the store procedure that returns my "report" set I noticed that several of the fields within the result set are different, the number of rows and customers are a perfect match to the production report. The fields that are different are calculated fields that invoque a user defined function, which again are exactly the same on both databases. I tried dropping the stored procedure and the 4 functions and recreating them again but I get the same results, the number of rows, the customers and all "non" function calculated fields are perfect, only the fields calculated with the functions are wrong.
Has anybody seen this behavior?
Thanks for your help
Luis Torres
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Oct 20, 2006
I am trying to use SQL Express to support unit testing of functionality which requires database access.
I created an express database (.mdf) which contains a database snapshot which is the database environment that each test expects to see when it starts. Through the execution of the test the database will be modified arbitrarily and I need to reset the database to the original state before the next test executes.
Here's what I do today:
Before Test:
The original database is copied to a unique location in the temp directory
A unique database name is generated (GUID-based)
I connect to the new database file with:
Server=.SQLEXPRESS;AttachDbFilename="PathToTempFile";Database="GuidDBName";Initial Catalog="GuidDBName";Trusted_Connection=Yes;User Instance=true
During the test all database access is routed to the temporary database GuidDBName
After Test:
Close all active database connections and clear the connection pool
Connect to the master database and detach the database:
Server=.SQLEXPRESS;Database=master;Initial Catalog=master;Trusted_Connection=Yes;User Instance=true - sp_detach_db 'GuidDBName'
Delete the temporary file
When I do this, everything seems to work correctly but when I re-open the original database it has changed unexpectedly and includes the modifications that were made by the test as it ran.
Can anyone explain why this is happening and/or provide a solution?
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