How Can I Mask A Column In A Sql Server Database

Sep 26, 2007

Hi i have a table in my database and i want to mask or encrypt a particular column in it? How can i do it.

 

Any help will be appreciated.

Regards

Karen

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How Can I Encrypt Or Mask A Column In The Database

Sep 26, 2007



How can i encrypt or mask a column in the database?

Any help will be appreciated
Regards
Karen

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The Affinity Mask Specified Does Not Match The CPU Mask On This System.

Nov 17, 2007

We are having a problem with one of our SQL servers, and in comparing it to the backup server which is working fine, I noticed some differences. I attempted to correct the differences, but no luck.
The dell server has 4 dual-core processors and at one point hyper-threading was enabled. One of our DBAs recommended that it be turned off. We didn't have any major problems until recently and it seems that getting this setting right is the lynchpin. Any suggestions?

John




EXEC sys.sp_configure N'show advanced options', N'1' RECONFIGURE WITH OVERRIDE

GO

EXEC sys.sp_configure N'affinity mask', N'0'

GO

EXEC sys.sp_configure N'affinity I/O mask', N'0'

GO

RECONFIGURE WITH OVERRIDE

GO

EXEC sys.sp_configure N'show advanced options', N'0' RECONFIGURE WITH OVERRIDE

GO

-----------------------------------------


Configuration option 'show advanced options' changed from 0 to 1. Run the RECONFIGURE statement to install.

Msg 5832, Level 16, State 1, Line 1

The affinity mask specified does not match the CPU mask on this system.

Msg 15123, Level 16, State 1, Procedure sp_configure, Line 51

The configuration option 'affinity mask' does not exist, or it may be an advanced option.

Msg 15123, Level 16, State 1, Procedure sp_configure, Line 51

The configuration option 'affinity I/O mask' does not exist, or it may be an advanced option.

Msg 5832, Level 16, State 1, Line 1

The affinity mask specified does not match the CPU mask on this system.

Configuration option 'show advanced options' changed from 1 to 0. Run the RECONFIGURE statement to install.

Msg 5832, Level 16, State 1, Line 1

The affinity mask specified does not match the CPU mask on this system.

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SELECT - BETWEEN &<mask&> AND &<mask&>

May 10, 2004

I have a table into which users can enter a To and From range, and an application returns all the values in between. Naturally the users can enter to and from values that don't exist, as all they need to do is satisfy a "between" expression. eg they can enter '1100' to '1399' and even though neither value actually exists in the data, the query will return all the values that fall into the desired range.

However the application now demands a bit more of a sophisticated approach. The target data may have the form 'nn-nnnn-nn' where n is '0' to '9', and the user wants to select all the values (in pseudo-code) which satisfy a pattern like '%-7040-%' and '%-7400-%'

A simple LIKE expression with a mask containing a RegEx won't work - ie LIKE '%-7[0-4][0-4]0-%' doesn't work because (eg) '00-7150-00' won't satisfy the mask because of the 5 falling outside [0-4], although it is within the range I want.

I have come up with a solution to this problem by using MIN and MAX aggregate functions on LIKE [From] and LIKE [To] respectively and this works fine. eg

"SELECT A.<something> from <target_table1> A, <table_with_ranges> B WHERE A.<something> BETWEEN (SELECT MIN(X.<something>) FROM <target_table1> X WHERE X.<something> LIKE B.[From]) AND (SELECT MAX(X.<something>) FROM <target_table1> X WHERE X.<something> LIKE B.[To])"

It's actually quite a bit more complicated than that - I have simplified the SQL a bit, but that is the basic algorithm.

The problem is that for the BETWEEN expression to work, both the MAX and MIN functions have to return a value that is not NULL- ie there has to be a value in the target table which satisfies the mask. In the application, this is not always going to be the case - Users will want to create large ranges to allow for future growth so every time they enter new data into target_table1 the don't then have to go out and redfine the [From] and [To] ranges to satisfy the new data. What I really need is an SQL expression along the lines of "SELECT .... FROM ... WHERE A BETWEEN <pattern1> AND <pattern2>" where <pattern1> and <pattern2> contain wildcards.

Anyone got any suggestions??? By the way, using SUBSTRING or other string functions is NOT an option for a variety of reasons.

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What Happens If Affinity Mask And Affinity I/O Mask Are Not Mutually Exclusive?

Jan 21, 2008



I have a dual 64 bit quad core server with 16 GB of memory. We are going to run an application server and SQL Server 2005 SP2 CU4 64 bit on this hardware, but we only want to purchase a single CPU license for SQL Server. The obvious choice is to use the affinity settings to prevent SQL Server from using one of the CPUs.

Initially, the development team simply went into SSMS and unchecked affinity mask and affinity io mask for the first four processors. This appeared to work fine in their testing. A problem arose when we started monitoring the maintenance plan and saw that the database integrity check was failing. The root problem was this invalid state that the affinity masks were in.

I have seen a lot of documentation stating the SQL Server will ignore an invalid mask setting, but in our testing, it appears that SQL Server respects the setting. For example, when we set CPU 7 to be available for processing and IO, Performance Monitor showed that only CPU 7 was used during a load test.

So from our preliminary testing, it looks like SQL Server will use a single CPU for both processing and IO if you tell it to. Is there some other reason why these affinity settings need to be mutually exclusive? Is there a test I can run that can illustrate why?

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Affinity Mask And Affinity I/O Mask Configuration

Sep 17, 2007

I'm experiencing some problem with the affinity mask and affinity I/O mask configuration.

We are running SQL Server Enterprise Edition 2005 64bit on Windows 2003 Server 64bit with 4 dual core CPU. The actuelly configuration is:

Affinity Mask Affinity I/O Mask
CPU0 0 0
CPU1 0 0
CPU2 1 1
CPU3 1 1
CPU4 1 1
CPU5 1 1
CPU6 1 1
CPU7 1 1


We did it so, because we are running LiteSpeed Tool for the backup. LiteSpeed is configured to use CPU0 and CPU1.

Now, we know that the settings are wrong. If Affinity mask is 1 affinity I/O mask should be 0 and vice-versa.

My question is: how many CPU should I enable for affinity mask and how many for affinity I/O mask. Which are the correct criterias.

Thx in advence.
Laurent

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Aug 17, 2006

To do this successfully do I need to backup the Service master, Database master, and database itself from the the Source server, then restore all three of them on the destination server?

(I'm concerned that restoring the source Service Master key to a new target server with an existing sql 2005 install will screw things up big time.)

TIA,

Barkingdog

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Aug 7, 2014

I ran ALTER SERVER CONFIGURATION SET PROCESS AFFINITY CPU = 2,3 that means the SQL server 2012 is using the 2nd and 3rd CPU's respectively..

Now, when I run sp_configure 'affinity mask' I get the config_value as 12, so how it is getting calculated?

is there a code for each CPU?? wanted to know about this.

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Nov 12, 2007

-- Prepare sample data
DECLARE@Sample TABLE (ID INT, NetworkIP VARCHAR(15), SubnetMask VARCHAR(15))

INSERT@Sample
SELECT1, '192.168.1.0', '255.255.255.128' UNION ALL
SELECT2, '10.1.1.64', '255.255.255.240' UNION ALL
SELECT3, '172.16.11.0', '255.255.255.252'

-- Show the expected output
SELECTID,
NetworkIP,
SubnetMask,
dbo.fnIsInRangeIP('192.168.1.5', NetworkIP, SubnetMask) AS IsInRange
FROM@SampleAnd here is the function codeCREATE FUNCTION dbo.fnIsInRangeIP
(
@IP VARCHAR(15),
@NetIP VARCHAR(15),
@MaskIP VARCHAR(15)
)
RETURNS BIT
AS
BEGIN
RETURNCASE
WHENCAST(PARSENAME(@IP, 4) AS TINYINT) & CAST(PARSENAME(@MaskIP, 4) AS TINYINT) = CAST(PARSENAME(@NetIP, 4) AS TINYINT) & CAST(PARSENAME(@MaskIP, 4) AS TINYINT)
AND CAST(PARSENAME(@IP, 3) AS TINYINT) & CAST(PARSENAME(@MaskIP, 3) AS TINYINT) = CAST(PARSENAME(@NetIP, 3) AS TINYINT) & CAST(PARSENAME(@MaskIP, 3) AS TINYINT)
AND CAST(PARSENAME(@IP, 2) AS TINYINT) & CAST(PARSENAME(@MaskIP, 2) AS TINYINT) = CAST(PARSENAME(@NetIP, 2) AS TINYINT) & CAST(PARSENAME(@MaskIP, 2) AS TINYINT)
AND CAST(PARSENAME(@IP, 1) AS TINYINT) & CAST(PARSENAME(@MaskIP, 1) AS TINYINT) = CAST(PARSENAME(@NetIP, 1) AS TINYINT) & CAST(PARSENAME(@MaskIP, 1) AS TINYINT)
THEN1
ELSE0
END
ENDE 12°55'05.25"
N 56°04'39.16"

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Dec 20, 2007



Hello

I'm using the ForEach File task and masking the files I want to process as ABC??.TXT.
It all works well until I drop a file there like ABC12 Copy.TXT, which I don't expect to be process, but the loop still picks it up. Am I using the wrong wildcards?

newstar1860

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Enter Data In A Mask Format

Aug 20, 2006

sorry for my question, maybe it seems un professional but I need to know the answer,

is it possible to enter the data in a sql table in a specific format and how it could be?

for example I want to have a mask in the table to enter the data in this format ##.## so it will not accept any other data to be typed in without this format.



Regards

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Mar 28, 2006

Hello, I have this Access 2K query that I need to re-create in MS SQLServer 2000, so I'm using the Query Analyzer to test it.One of the Access fields stores the home phone number. In the Accessquery, if the phone number is null, it fills it up with zeroes"000000000." If the phone has an input mask, it only gets the 9 numbers(area code included) and if the phone number's good (all numbers) thenit leaves it alone. That Access query is using immediate ifs toaccomplish that task.Does anyone have any idea how to copy this behavior into SQL Server2000? I've using the CASE statement but so far my code is not correct.I get stuck in the input mask. This is the Access code:HomePhone:IIf(IsNull([HomePhone]),"0000000000",IIf(Left([HomePhone],1)="(",Right(Left([Homephone],4),3)& Right(Left([Homephone],9),3) & Right([HomePhone],4),[HomePhone]))Thanks for all your help.JR.

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Sep 29, 2006

I have the following t-sql syntax

problem is masking information after like as special characters.

I will search for all entries in column filedirectory which begins with \

DECLARE @cmd varchar(255)
SET @cmd = 'SELECT id,name,filedirectory FROM MR_ReqPro.RQDOCUMENTS WHERE FILEDIRECTORY LIKE  ' \%'  '
print @cmd

EXEC master.dbo.xp_sendmail @recipients = 'kalleOO7@web.de',
   @query = @cmd , @subject = 'Fehler', @message = 'Fehler :', @attach_results = 'TRUE', @width = 2000

Thx

Kalle

 

here is the solution

DECLARE @cmd varchar(255)
SET @cmd = 'SELECT id, name, filedirectory FROM MR_ReqPro.RQDOCUMENTS WHERE filedirectory LIKE ''\%'' '
print @cmd

seems to work :-)

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sales_date ='21-9-2004 0:0:0.000'

when I run the statement in query analyzer it bombs out with:

Server: Msg 296, Level 16, State 3, Line 1
The conversion of char data type to smalldatetime data type resulted in an out-of-range smalldatetime value.

If I alter the format of the date literal to '2004-09-21 00:00:00' the statement works.

Is there anyway of forcing the statement to treat '21-9-2004 0:0:0.000' as '2004-09-21 00:00:00' without modifying the statement itself ?

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AnupG writes "hi,
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Aug 29, 2006



Hi All

Can u pls tell me How to Get the SQL Affinity Mask value in Sql 2005.

and what is the table/views name that store this info.

for SQL 2000 , we were using following query:

SQLStatement.printf("select c.value from master..sysconfigures c, master..spt_values v,"
"master..syscurconfigs r where v.type = 'C' and v.number = c.config and v.number >= 0 "
"and v.number = r.config and v.name ='affinity mask'");

lErrCode=SQLExecDirect(hStmt,(SQLCHAR*)pszSQLStatement,strlen(pszSQLStatement));

lSQLBindCol(nAffMask);

But With SQL 2005 , we are getting ZERO(0) ROWS SELECTED.

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