Can SQL Lose Records?
Jun 20, 2007
We are running SQL 7 with a front end that links to the tables through ODBC.
In our main table, the user has no way to delete a record through the
interface, though it is possible to delete it by opening the ODBC link.
Users would have no reason to delete a record, but one of our records turned
up missing.
Now, it's possible that a user may have accidentally deleted the record.
But, since users don't have any reason to delete records, and since they
don't access the ODBC links, it seems unlikely (though possible).
I was wondering if anyone had every heard of SQL Server ever "losing" a
record that had previously been saved. I checked the nightly backup from the
night after it was added, and the record was there. So either a user deleted
it, or somehow it got lost in SQL Server. I have no code that deletes
records in this table in any way, shape or form, so it couldn't have been
malfunctioning code.
So, while I have a hard time believing that SQL Server would just "lose" a
record, I also know that anything's possible, so I thought I'd ask if anyone
had ever heard of such a thing.
Thanks!
Neil
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May 24, 2007
Dear all,
I'm using SQL Server 2005 as my backend application. I had strange experience on it, sometime some of my records suddenly disappear without any deletion action.I've check the log files and I've already set a trigger on deletion to copy the deleted record to a history table, but I found nothing. Are there anybody that have same experience like me ?
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May 16, 2007
Hi all,
I have some problem :
I use sql server 2000,I have about 20000 records !
I delete all data unfortunately !
So , i need to restore all .
Are there way to do this ? I don't setup automatic backup !
My data is very important !
Thank you very much.
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Mar 22, 2006
Hi,
i've a store procedure has a strange behavior, As soon as created has a good performance , but after some times (indeterminated) it takes more time to be execute.... (up to 70s!!!)
The thing that i've not understood was if i take the query inside to the store i execute it separtely I get result immediately... :eek:
Dropping and re-creating procedure,it become newly fast... I've just scheduled a maintenance plan with index optimization and integrity check, but this seems doesn't work ...
Any idea?
Thanks .
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Jun 13, 2006
I've got a project with 12 packages. One of them runnning and at the same time when I try to alter another one or even add a new task I see that all the tasks on toolbox are disabled.
Why?
I would like to hear a good reason for this behaviour, afaik I don't get the point...
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Feb 13, 2007
I have a database that has a table with tons of data in it and it is getting close to the 999 days before it starts deleting the oldest records. Is there a way to allow the table to keep all of the information? I don't think there is, so here is my next question. Is there a way that I can move the entire table into another database to save all the information and start over with the 999 days? My main goal here is to not lose ANY information from any table from the database.
Also, I was thinking that when an entry is added into the main table, if it can also be added into the other table where I move the old data? I think a trigger can be used here, but I'm not sure how to do one in 2005. Thank you very much in advance for your help!!!
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Nov 16, 2005
I created a linked report and I see that the original height and width settings which were set for landscape have changed into portrait:
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Jan 24, 2008
I used the URL approach to call the reporting service. In the ASP page, I use javascript to open a new window to view the report. But when I close the new window and work on the original window. It seems that the DB connection to the SQL server is not working.
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Aug 19, 2015
We run std 2008 r2. On my col heading text boxes and data text boxes i'm purposely picking only borders above and left in an attempt to get rid of what looks like a double border between text boxes.
The only places I see what appears to be a single thickness is the left of the 1st column hdg and data, and above any col hdg text box I set this way.
Also, when I pick .5 instead of 1 pt thickness, ssrs always puts it back to 1 pt.
How can I get the appearance of single thickness borders instead double?
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Dec 5, 2007
We recently had a problem were a webserver lost connection to sql 2000 database after we put in a new router. When we failed back to old router it was able to connect to database again. It is using a non standard port 2125 to connect to sql database. Why would a new router cause connection problems to a database.
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Jul 18, 2007
I have several reports that are set to landscape but then lose this layout when a linked report is created from the original report. I found the link below describing Brian Welcker's workaround and my question is where do you place the vb.net code he provided?
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=137986&SiteID=1
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Nov 19, 2006
This is sort of a DR issue since it involves reboots and power failures.
We have MSSQL 2005 SP1 and unpatched systems, but in particular we have this problem still with the SP1 server (in addition to the unpatched systems). Running on Win 2k3.
It seems that upon reboot, our stored SSIS jobs lose their pemissions and/or ownership for execution. It doesn't happen at every reboot or power failure, but seemingly more than half the time.
Here is the error reported:
The job failed. The owner () of job Job_1 does not have server access.
But checking the properties of the job and it shows an valid owner in the Owner field. I believe we are using Active Directory for authentication and the user listed is valid in that respect.
We have "fixed" this problem before by removing the job completely and re-installing it, with the same owner. No issues until the next system outage.
Has anyone else seen this before? Is there a fix or is this some kind of bug?
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Apr 26, 2006
Hi - quick question.
I wanted to upgrade pre-release version of SQL Express to the latest version, and wanted to make sure that none of the database information would be lost. The thing that concerns me is that it states to uninstall previous versions of SQL Server 2005 Express before installing the latest version. I threw the database tables into a backup directory, and I think this should be fine, but I want to be sure. Let me know. Thanks!
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Jan 25, 2007
I'm having a problem with the XML Source data flow component not transferring the length attributes from an XML Schema to the column attributes of the output table.
An example schema that I have is:
<?xml version='1.0' encoding='UTF-8'?><data xmlns:xsd='http://www.w3.org/2001/XMLSchema' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'><xsd:schema> <xsd:simpleType name='NameType'> <xsd:restriction base='xsd:string'> <xsd:minLength value='0'/> <xsd:maxLength value='50'/> </xsd:restriction> </xsd:simpleType> <xsd:element name='Name' type='NameType' nillable='true'/> <xsd:simpleType name='FamilyType'> <xsd:restriction base='xsd:string'> <xsd:minLength value='0'/> <xsd:maxLength value='50'/> </xsd:restriction> </xsd:simpleType> <xsd:element name='Family' type='FamilyType' nillable='true'/> <xsd:element name='row'> <xsd:complexType> <xsd:sequence> <xsd:element ref='Name'/> <xsd:element ref='Family'/> </xsd:sequence> </xsd:complexType> </xsd:element> <xsd:element name='data'> <xsd:complexType> <xsd:sequence> <xsd:element ref='row' maxOccurs='unbounded'/> </xsd:sequence> </xsd:complexType> </xsd:element></xsd:schema> <!-- data follows --> <row><Name>Fred</Name><Family>Jones</Family></row></data>
When I reference file in the XML Source data control, it correctly infers that there are two columns, but the length of the strings in the columns are set as 255.
This behaviour appears to be at odds with the SSIS documentation (SQL Server Integration Services/Integration Services Object and Concepts/Data Flow Elements/Integration Services Sources/XML Source), which states (highlighting mine):
When the data is extracted from the XML data file, it is converted to an Integration Services data type. The XSD or inline schema may specify the data type for elements, but if it does not, the XML Source Editor dialog box assigns the Unicode string data type (DT_WSTR) to the column in the output that contains the element, and sets the column length to 255 characters. If the schema specifies the maximum length of an element, the length of output column is set to this value. If the maximum length is greater than the length supported by the Integration Services data type to which the element is converted, then the data is truncated to the maximum length of the data type. For example, if a string has a length of 5000, it is truncated to 4000 characters because the maximum length of the DT_WSTR data type is 4000 characters; likewise, byte data is truncated to 8000 characters, the maximum length of the DT_BYTES data type. If the schema specifies no maximum length, the default length of columns with either data type is set to 255. Data truncation in the XML source is handled the same way as truncation in other data flow components. For more information, see Handling Errors in Data.
Has anyone had any luck in getting string lengths automatically extracted from an XML document? If so, where I am going wrong?
Regards,
Michael
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Aug 20, 2003
This is related to an earlier post, but I found out that I was able to see SQL Server counters in Performance monitor before applying the patch, but the counters were not present afterwards....
do I need to edit the registry ?
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Oct 11, 2007
will my fetches on a cursor continue seamlessly even if deletes and multiple commits are occuring on the underlying source table? I want to make sure the cursor will not lose it's place as I believe some older dbms's did.
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Jul 9, 2015
I am running into an issue while executing a sproc from Excel VBA. Everything connects fine, and I am passing a parameter, however, after a few seconds, it seems like the connection receives a "completed" command and continues down it's code, but the sproc is still executing. The result is that I never receive the record set from the sproc.Here is the code snippet from VBA:
' Create Recordset objects.
Dim cmd As New ADODB.Command
Dim conn As ADODB.Connection
Dim prm As ADODB.Parameter
Dim sConnString As String
Dim rs As ADODB.Recordset
Dim strQry As String
Dim rowCount As Long
[code]....
And here is the sproc that is being called. the first thing it performs after the "IF" block (there are multiple steps that would consecutively be called after this, but all of the data hinges on this first step working) is a TRUNCATE statement. After running a SQL profiler while executing the VBA code, I consistently see an "account log out" entry; almost as if the connection from the Excel workbook is sent a disconnect instruction. The sproc continues to run and perform the rest of the script in the "IF" block, but the returned recordset is never returned back to Excel.
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET NOCOUNT ON
GO
[code]....
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Mar 20, 2014
writing the query for the following, I need to collapse the continuity. If the termdate for an ID is one day less than the effdate of the next id (for the same ID) i need to collapse the records. See below example .....how should i write the query which will give me the desired output. i.e., get min(effdate) and max(termdate) if termdate is one day less than the effdate of next record.
ID effdate termdate
556868 1999-01-01 1999-06-30
556868 1999-07-01 1999-10-31
556869 2002-10-01 2004-01-31
556872 1999-02-01 2000-08-31
556872 2000-11-01 2004-01-31
556872 2004-02-01 2004-02-29
output should be ......
ID effdate termdate
556868 1999-01-01 1999-10-31
556869 2002-10-01 2004-01-31
556872 1999-02-01 2000-08-31
556872 2000-11-01 2004-02-29
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Mar 18, 2014
I have a situation where deleting old records is blocking updating latest records on highly transactional table and getting timeout errors from application.
In details, I have one table called Tran_table1 in OLTP database. This Tran_table1 is highly transactional table, it will receive data for insert/update continuously
While archiving 2 years old records from Tran_table1 into Tran_table1_archive in batches(using DELETE OUTPUT INTO clause), if there is any UPDATEs on Tran_table1,these updates are getting blocked and result is timeout errors in application.
Is there any SQL Server hints to avoid blocking ..
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Sep 7, 2015
declare @table table (
ParentID INT,
ChildID INT,
Value float
)
INSERT INTO @table
SELECT 1,1,1.2
[code]....
This case ParentID - Child 1 ,1 & 2,2 and 3,3 records are called as parent where as null , 1 is child whoose parent is 1 similarly null,2 records are child whoose parent is 2 , .....
Now my requirement is to display parent records with value ascending and display next child records to the corresponding parent and parent records are sorted ascending
--Final output should be
PatentID ChildID VALUE
33 1.12
null3 56.7
null3 43.6
11 1.2
null1 4.8
null1 4.6
22 1.8
null1 1.4
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Aug 6, 2007
HI,
I have been trying to solve the locking problem from past couple of days. Please help mee!!
Scenario:
--------------
I have a SSIS package in which 2 data flow tasks. 1st data flow task deletes records from a 5 tables and the 2nd data flow task should insert records into 1 of the five tables after the success of 1st data flow task. This scenario runs in Transacation.
The above scenrio in the 2nd data flow task hangs in runtime. It does not complete. with sp_who2 command i could see that there is an intent share lock(LK_M_IS) on the table and the status is SUSPENDED.
I dont know how to come out of this locking. Please help.
Thanks ,
Sunil
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Nov 2, 2006
Hello
Im searching for a solution to set all matrix row or cell the same height.
it schoud looks like this example:
This is a simple matrix
test a
text b
text c
text d
text e
text f
text g
This is a matrix with all the same row-height.
test a
text b
.
text c
.
.
text d
text e
text f
text g
.
.
Thx you a lot
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Dec 3, 2014
I have a table with about half a million records, each representing a patient in my county.
Each record has a field (RRank) which basically sorts the patients as to how "unwell" they are according to a previously-applied algorithm. The most unwell patient has an RRank of 1, the next-most unwell has RRank=2 etc.
I have just deleted several hundred records (which relate to patients now deceased) from the table, thereby leaving gaps in the RRank sequence. I want to renumber the remaining recs to get rid of the gaps.
I can see what I want to accomplish by using ROW_NUMBER, thus:
SELECT ROW_NUMBER() Over (ORDER BY RRank) as RecNumber, RRank
FROM RPL
ORDER BY RRank
I see the numbers in the RecNumber column falling behind the RRank as I scan down the results
My question is: How to convert this into an UPDATE statement? I had hoped that I could do something like:
UPDATE RISC_PatientList_TEMP
SET RRank = ROW_NUMBER() Over (ORDER BY RRank);
but the system informs that window functions will only work on SELECT (which UPDATE isn't) or ORDER BY (which I can't legally add).
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Jul 23, 2005
I need a little help here..I want to transfer ONLY new records AND update any modified recordsfrom Oracle into SQL Server using DTS. How should I go about it?a) how do I use global variable to get max date.Where and what DTS task should I use to complete the job? Data DrivenQuery? Transform data task? How ? can u give me samples. Perhaps youcan email me the Demo Package as well.b) so far, what I did was,- I have datemodified field in my Oracle table so that I can comparewith datelastrun of my DTS package to get new records- records in Oracle having datemodified >Max(datelastrun), and transferto SQL Server table.Now, I am stuck as to where should I proceed - how can I transfer theserecords?Hope u can give me some lights. Thank you in advance.
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Jan 18, 2008
I have a query similar to the following. The intent of this query is to retrieve the top 6 records meeting the specified criteria (LOGTYPENAME = 'Process Status Start' OR LOGTYPENAME = 'Process Status End' ) based on most recent dates. Please keep in mind that I expect to return up to 6 records for each unique LogProcessName. This could be thousands of different LogProcessNames with up to 6 records for each.
1) The table I am executing against currently is very large in size and thus takes a long time to execute against. It would seem there must be a more efficient query to get the results I am looking for?
2) CTE doesn't work on SQL 2000. I need a query that does.
3) I cannot modify the database itself in the process.
;WITH cte AS (
SELECT [LogProcessName], [LogBody], [LogDate], [LogGUID], row_number()
OVER(PARTITION BY [LogProcessName]
ORDER BY [LogDate] DESC)
AS RN
FROM [LOGTABLE]
WHERE [LogTypeGUID] IN (
SELECT LogTypeGUID
FROM LOGTYPE
WHERE LogTypeName = 'Process Status Start'
OR LogTypeName = 'Process Status End' ) )
SELECT *
FROM cte
WHERE RN = 1 OR RN = 2 OR RN = 3 OR RN = 4 OR RN = 5 OR RN = 6
ORDER BY [LogProcessName] DESC, [LogDate] DESC
Does anybody else have any idea that would yield the results that I am looking for and take into account items 1-3 above?
Thanks in advance.
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Nov 28, 2005
I tried to port 10000 records using DTS. After porting of 9900 records I got an error and comes out without any result. But I want to keep the records which has been ported till the error occured. Plz help me.
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Oct 31, 2007
Hi, I have had this problem for a while and have not been able solve it.
What im looking at doing is looping thru my patient table and trying to organise the patients in to there admission sequence, so when patient "A" comes in and is treated at my hospital and is discharged and admitted to another Hospital within one day then patient "A" will get a code of 1 being there first admission.
then if patient "A" is admitted again but there admission date is greater than one day they get a code of 2 being for there second admission but will need to loop thru table looking for other admissions and discharges.
The table name is Adm_disc_Match_tbl
Basically what i have 4 fields.
Index_key = which is the patient common link (text)
ur_episode = this wil change for each Hospital (text)
Admission_datetime = patient admission date and time (datetime)
Discharge_datetime = patient discharge date and time (datetime)
example of data
Code: ( text )
Index_key,ur_episode,Admission_datetime,discharge_ datetime
HERBERT-7/1929,513884-1686900,4/07/2006 10:58,17/07/2006 13:37
HERBERT-7/1929,C023092-1698859,17/07/2006 13:20,24/07/2006 0:30
ELSIE-5/1916,G148445-1720874,8/08/2006 11:00,30/08/2006 10:00
STANISLAWA-3/1918 ,G119981-1720045,8/08/2006 13:01,22/08/2006 12:13
FREDA-11/1925,183772-1998910,27/03/2007 9:53,3/04/2007 11:06
FREDA-11/1925,G147858-2007408,3/04/2007 10:49,26/04/2007 12:39
FREDA-11/1925,183772-2037727,28/04/2007 17:05,9/05/2007 11:41
FREDA-11/1925,G147858-2052082,9/05/2007 12:00,25/05/2007 11:17
If anyone could help it would be much appreciated.
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Aug 17, 2007
Hi,
I have to search the records after the records populated.
I mean to say, i have displayed records in report, if i enter some strings in the textbox and clicked find, then it will highlight the particular records, instead of highlighting the values, is it possible to display only those particular records.
For example, say i have 50 records in a page,i entered some strings in the textbox and clicked find, then it will highlight the particular 5 records one by one which match the criteria i have entered in the texbox, instead of that i have to display only those 5 records.
Please tell me how to implement in this report,
Thanks and Regards
Altaf Nizamuddin
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Sep 13, 2006
Ok, I'm really new at this, but I am looking for a way to automatically insert new records into tables. I have one primary table with a primary key id that is automatically generated on insert and 3 other tables that have foreign keys pointing to the primary key. Is there a way to automatically create new records in the foreign tables that will have the new id? Would this be a job for a trigger, stored procedure? I admit I haven't studied up on those yet--I am learning things as I need them. Thanks.
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Aug 11, 2015
Table1 contains fields Groupid, UserName,Category, Dimension
Table2 contains fields Group, Name,Category, Dimension (Group and Name are not in Table1)
So basically I need to read the records in Table1 using Groupid and each time there is a Groupid then select records from Table2 where Table2.Category in (Select Catergory from Table1)
and Table2.Dimension in (Select Dimension from Table1)
In Table1 There might be 10 Groupid records all of which are different.
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Oct 21, 2015
I am trying to write a query that will retrieve all students of a particular class and also any rows in HomeworkLogLine if they exist (but return null if there is no row). I thought this should be a relatively simple LEFT join but I've tried every possible combination of joins but it's not working.
SELECT
Student.StudentSurname + ', ' + Student.StudentForename AS Fullname,
HomeworkLogLine.HomeworkLogLineTimestamp,
HomeworkLog.HomeworkLogDescription,
ROW_NUMBER() OVER (PARTITION BY HomeworkLogLine.HomeworkLogLineStudentID ORDER BY
[Code] ...
It's only returning two rows (the students where they have a row in the HomeworkLogLine table).
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Aug 5, 2015
I'm looking for a way of taking a query which returns a set of date time fields (probable maximum of 20 rows) and looping through each value to see if it exists in a separate table.
E.g.
Query 1
Select ID, Person, ProposedEvent, DayField, TimeField
from MyOptions
where person = 'me'
Table
Select Person, ExistingEvent, DayField, TimeField
from MyTimetable
where person ='me'
Loop through Query 1 and if it finds ANY matching Dayfield AND Timefield in Query/Table 2, return the ProposedEvent (just as a message, the loop could stop there), if no match a message saying all is fine can proceed to process form blah blah.
I'm essentially wanting somebody to select a bunch of events in a form, query 1 then finds all the days and times those events happen and check that none of them exist in the MyTimetable table.
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Apr 15, 2003
I'm at a bit of a loss here. My T-SQL skills are not up to the task at hand here :(
I've got company records in one table and SIC codes that correlate to the companies linked by the company ID. So, I can run the query, but the output I get is multiple records for each company, because some companies have multiple SIC codes associated with them.
I understand how to get only one record, but what I want to do is create a result set that has all the SIC codes associated with one company. Possibly in a comma seperated list, that would count as one field.
Anyone have any idea how to bring back all the SIC codes for one company as one variable (or multiple variables, but in one record)?
Thank you very much for any help,
Mischa
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