Invalid Descriptor Index Calling SQLGetData
Mar 10, 2006
In previous versions of MSSQL and on every other SQL engine I've tried the following pseudo-code works.
SQLExecDirect('select employeeid, photo, notes from employees where employeeid = 1')
SQLFetch()
SQLGetData(for column 3)
SQLGetData(for column 2)
With the Native Client I get an error 07009 "[Microsoft][SQL Native Client]Invalid Descriptor Index"
Is this a bug in the Native Client or am I making an incorrect assumption that I can get data in any order?
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Apr 21, 2008
Hello,
I've got the following query:
SELECT zA."ID" AS fA_A
, zA."TEXT" AS fA_B
, (
SELECT COUNT(zC."ID")
FROM Test."Booking" AS zC
) AS fA_E
FROM Test."Stack" AS zA
WHERE zA."ID" = ?
With this query I call:
- SQLPrepare -> SQL_SUCCESS=0
- SQLNumParams -> SQL_SUCCESS=0, pcpar = 1
- SQLDescribeParam( 1 ) -> SQL_ERROR=-1, [Microsoft][ODBC SQL Server Driver]Invalid parameter number", "[Microsoft][ODBC SQL Server Driver]Invalid Descriptor Index"
Is there a problem with this calling sequence or this query? Or is this a problem of SQL Server?
Regards
Markus
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Oct 2, 2006
I'm testing db to db transactional replication on a box ( all on the same box ) and the distribution agent fails with the above error. I know it's something to do with the physical server as this test works on other servers fine. SQL2k Ent sp4 on w2k3 ent sp1. ( clustered )
Server and Agent accounts are in local admins, tried push and pull, named and anonymous. Replication also fails if I use the default snapshot location. I suspect policy restrictions ( maybe on the sql service accounts ) Any pointers would be helpful - there are no errors other than above, sadly.
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Feb 27, 2002
We recently upgraded a SQL 7.0 SP2 database to SQL 2000 SP2. The web server that connects to both databases (we have 2 up that we can switch back and forth) is Win2K with the SQL Server ODBC driver of 2000.80.194.00 (I'm thinking this came w/ W2K) But I think I installed the 7.0 client connectivity on the web server.
I have a few questions:
1. Any reason why this would happen with the SQL upgrade?
2. What is the ideal situation for client/server ODBC drivers / MDAC client.. If I have a SQL 2000 SP2 server do I install SQL 2000 client on the web server and also the service pack on the web server?
Thanks and please ask if you need more info..
-Kelly
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May 23, 2007
We've run into a problem using SQLDescribeParam with the SQL Server ODBC driver (or SQL Native Client driver). The basic sequence that shows the issue is this:
SQLPrepare(select * from foo where col1 = ?)
SQLDescribeParam(1)
SQLBindParameter(1)
SQLFreeStmt(SQL_CLOSE) /* NOT RESET_PARAMS */
SQLPrepare(select * from foo where col1 = ? and col2 = ?)
SQLDescribeParam(1)
SQLDescribeParam(2) ==> returns "Invalid Descriptor Index"
If I leave out the SQLBindParameter, then the last SQLDescribeParam works just fine. Also, if I make the SQLFreeStmt use SQL_RESET_PARAMS then it works fine. However, I don't have direct control over the ODBC code being used, so I wanted to see if this known behavior. I've tried a couple of other ODBC drivers that support SQLDescribeParam and they work fine with the above sequence.
Thanks,
Chris
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Dec 28, 2005
Hi all,
I'm getting this "invalid descriptor index" exception while trying to fetch a record from the table.
The query is "select * from <tablename> where <columnname> = 'xyz'". The column name is correct and indeed a record with 'xyz' value exists. The record is getting fetched too...! But I'm having this particular error while trying to retrieve a couple of fields with rs.getString().
The order of columns in the table is same as the order in which I'm retrieving them. And I'm not facing any problem retrieving another field which has width of 200 characters.
I'll be very grateful indeed if someone can help me out of this particular problem...
Cheers, mates!
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Sep 25, 2006
I get the following error when generating a report. I use the "render" method in an asp.net page. I have also seen Timeout errors, which is the second error listed below.
Configuration
db-SQL Server 2000 on clustered windows 2003 server SP1, 5.5 GB RAM
SSRS 2005 and IIS 6.0 on 2nd windows 2003 server SP1, 3.75 GB RAM
generating SSRS Report using asp.net
Error is on large amounts of data, main source table has 11.2 Million records. The stored procedure returns
507,387 rows in approx. 25 minutes.
No problem with smaller amounts of data using the same source of 11.2 million records, but returning
much less.
Error 1: (from try/catch on render method)
System.Web.Services.Protocols.SoapException: An error has occurred during report processing. ---> An error has occurred during report processing. ---> An error has occurred during report processing. ---> The Group expression used in grouping €˜territory€™ references a data set field which contains an error: System.InvalidOperationException: Invalid attempt to MetaData when reader is closed. at System.Data.SqlClient.SqlDataReader.get_MetaData() at System.Data.SqlClient.SqlDataReader.GetValue(Int32 i) at Microsoft.ReportingServices.DataExtensions.DataReaderWrapper.GetValue(Int32 fieldIndex) at Microsoft.ReportingServices.DataExtensions.MappingDataReader.GetFieldValue(Int32 aliasIndex) at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall) at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters) at rptsvc.ReportingService.Render(String Report, String Format, String HistoryID, String DeviceInfo, ParameterValue[] Parameters, DataSourceCredentials[] Credentials, String ShowHideToggle, String& Encoding, String& MimeType, ParameterValue[]& ParametersUsed, Warning[]& Warnings, String[]& StreamIds) in c:WINDOWSMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Filesswisherreports842e8e9d5ff5a831App_WebReferences.no0lpcgz.0.cs:line 1706 at ar_sum_aging.btnGenRpt_Click(Object sender, EventArgs e) in U:Visual Studio 2005ProjectsSwisherReportsar_sum_aging.aspx.vb:line 32
Error 2: (from ReportServer error log)
w3wp!processing!1!9/25/2006-18:32:53:: e ERROR: An exception has occurred in data source 'ar_sp'. Details: System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeDataSetNode.GetNextDetailRow()
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeReportDataSetNode.FirstPassGetNextDetailRow()
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeDataSetNode.FirstPass()
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeDataSetNode.FirstPassProcess(Boolean& closeConnWhenFinish)
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeReportDataSetNode.Process()
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeDataSetNode.ProcessConcurrent(Object threadSet)
w3wp!processing!1!9/25/2006-18:32:53:: i INFO: Merge abort handler called for ID=-1. Aborting data sources ...
w3wp!processing!1!9/25/2006-18:32:53:: e ERROR: Throwing Microsoft.ReportingServices.ReportProcessing.ProcessingAbortedException: An error has occurred during report processing., ;
Info: Microsoft.ReportingServices.ReportProcessing.ProcessingAbortedException: An error has occurred during report processing. ---> System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeDataSetNode.GetNextDetailRow()
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeReportDataSetNode.FirstPassGetNextDetailRow()
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeDataSetNode.FirstPass()
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeDataSetNode.FirstPassProcess(Boolean& closeConnWhenFinish)
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeReportDataSetNode.Process()
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeDataSetNode.ProcessConcurrent(Object threadSet)
--- End of inner exception stack trace ---
w3wp!processing!1!9/25/2006-18:32:53:: w WARN: Data source 'AR': Report processing has been aborted.
w3wp!processing!1!9/25/2006-18:32:53:: e ERROR: Throwing Microsoft.ReportingServices.ReportProcessing.ProcessingAbortedException: An error has occurred during report processing., ;
Info: Microsoft.ReportingServices.ReportProcessing.ProcessingAbortedException: An error has occurred during report processing. ---> System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeDataSetNode.GetNextDetailRow()
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeReportDataSetNode.FirstPassGetNextDetailRow()
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeDataSetNode.FirstPass()
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeDataSetNode.FirstPassProcess(Boolean& closeConnWhenFinish)
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeReportDataSetNode.Process()
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RuntimeDataSetNode.ProcessConcurrent(Object threadSet)
--- End of inner exception stack trace ---
w3wp!library!1!09/25/2006-18:32:58:: e ERROR: Found System.OutOfMemoryException exception: Microsoft.ReportingServices.Diagnostics.Utilities.RSException: An error has occurred during report processing. ---> Microsoft.ReportingServices.ReportProcessing.ProcessingAbortedException: An error has occurred during report processing. ---> System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.
w3wp!library!1!09/25/2006-18:32:58:: e ERROR: Terminating worker process
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May 19, 2005
Hi,
I run a nightly dbcc checktable on order_header and today I see this error occurs.
Table error: Table 'ORDER_HEADER' (ID 203147769). Missing or invalid key in index 'PK_ORDER_HEADER' (ID 4) for the row:
Server: Msg 8955, Level 16, State 1, Line 1
1. I have no idea what caused it?
2. How do I fixed this online as the application is 24/7?
3. I did try to dbcc reindex but it failed reporting that can't create index because of duplicate in primary index key????
Please show me a way to fix this.
Thanks
Dave
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Mar 12, 2007
Dear all,
We have such problems:
DBCC results for 'TRAMES'.
Server: Msg 8955, Level 16, State 1, Line 1
Data row (1:3893993:34) identified by (RID = (1:3893993:34) ) has index values (PO_ID = 80123).
Server: Msg 8951, Level 16, State 1, Line 1
Table error: Table 'TRAMES' (ID 1573580644). Missing or invalid key in index 'IX_POID' (ID 2) for the row:
Server: Msg 8955, Level 16, State 1, Line 1
Data row (1:3893993:48) identified by (RID = (1:3893993:48) ) has index values (PO_ID = 80095).
Server: Msg 8951, Level 16, State 1, Line 1
Table error: Table 'TRAMES' (ID 1573580644). Missing or invalid key in index 'IX_POID' (ID 2) for the row:
Server: Msg 8955, Level 16, State 1, Line 1
Data row (1:3893993:79) identified by (RID = (1:3893993:79) ) has index values (PO_ID = 80123).
Server: Msg 8951, Level 16, State 1, Line 1
Table error: Table 'TRAMES' (ID 1573580644). Missing or invalid key in index 'IX_POID' (ID 2) for the row:
Server: Msg 8955, Level 16, State 1, Line 1
Data row (1:3893993:92) identified by (RID = (1:3893993:92) ) has index values (PO_ID = 80095).
There are 1703901 rows in 18180 pages for object 'TRAMES'.
CHECKDB found 0 allocation errors and 4 consistency errors in table 'TRAMES' (object ID 1573580644).
And really I don't know what can I do to prevent such problems. I know how to fix it with a dbreindex, but it blocks the production during several minutes, and we have to restart the whole plant...
we are using SQL 2000 standard edition 8.00.2039 (with SP4)
Thank you,
regards
Olivier
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Aug 12, 2015
SSIS script task fail with error message-SSIS script task fail error message Error: Cannot load Counter Name data because an invalid index '' was read from the registry.
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May 9, 2006
Hi all,
We are getting "New request is not allowed to start because it should come with valid transaction descriptor" when using transactions against SQL 2005. As I understand it, it's a bug that occurs after some statement has terminated against the database; see http://lab.msdn.microsoft.com/productfeedback/ViewWorkaround.aspx?FeedbackID=FDBK46530#1
Now, I wonder if there is a hotfix coming soon on this?
/Daniel
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Oct 20, 2006
please explain the differences btween this logical & phisicall operations that we can see therir graphical icons in execution plan tab in Management Studio
thank you in advance
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Jun 14, 2007
Hi All,
Are there any MDS Descriptor Files associated with Databases Files? Are these associated with transaction logs? As per my information there are .mdf , .ndf and .ldf files.Could anyone please guide me ASAP,as there is an urgent requirement from one of the clients?
Thanks in Advance
Gaurav Matkar
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Sep 30, 2015
I am using Full Text Index to index emails stored in BLOB column in a table. Index process parses stored emails, and, if there is one or more files attached to the email these documents get indexed too. In result when I'm querying the full text index for a word or phrase I am getting reference to the email containing the word of phrase if interest if the word was used in the email body OR if it was used in any document attached to the email.
How to distinguish in a Full Text query that the result came from an embedded document rather than from "main" document? Or if that's not possible how to disable indexing of embedded documents?
My goal is either to give a user an option if he or she wants to search emails (email bodies only) OR emails AND documents attached to them, or at least clearly indicate in the returned result the real source where the word or phrase has been found.
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Dec 5, 2007
Dear All.
We had Teradata 4700 SMP. We have moved data from TD to MS_SQL SERVER 2003. records are 19.65 Millions.
table is >> Order_Dtl
Columns are:-
Client_ID varchar 10
Order_ID varchar 50
Order_Sub_ID decimal
.....
...
..
.
Pk is (ClientID+OrderId+OrderSubID)
Web Base application or PDA devices use to initiate the order from all over the country. The issue is this table is not Partioned but good HP with 30 GB RAM is installed. this is main table that receive 18,0000 hits or more. All brokers and users are using this table to see the status of their order.
The always search by OrderID, or ClientID or order_SubNo, or enter any two like (Client_ID+Order_Sub_ID) or any combination.
Query takes to much time when ever server receive more querys. some orther indexes are also created on the same table like (OrderDate, OrdCreate Date and Status)
My Question are:-
Q1. IF Person "A" query to DB on Client_ID, then what Index will use ? (If any one do Query on any two combination like Client_ID+Order_ID, So what index will be uesd.? How does MS-SQL SERVER deal with these kind of issues.?
Q2. If i create 3 more indexes on ClientID, ORderID and OrdersubID. will this improve the performance of query.if person "A" search record on orderNo so what index will be used. (Mind it their would be 3 seprate indexes for Each PK columns) and composite-Clustered index is also available.?
Q3. I want to check what indexes has been used? on what search?
Q4. How can i check what table was populated when, or last date of update (DML)?
My Limitation is i Dont Create a Partioned table. I dont have permission to do it.
In Teradata we had more than 4 tb record of CRM data with no issue. i am not new baby in db line but not expert in sql server 2003.
I am thank u to all who read or reply.
Arshad
Manager Database
Esoulconsultancy.com
(Teradata Master)
10g OCP
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Oct 28, 2015
My SSIS package is running very slow taking so much time to execute, One task is taking 2hr for inserting 100k records, i have disabled unused index still it is taking time.I am rebuilding/Refreshing indexes and stats once in month if i try to execute on daily basis will it improve my SSIS Package performance?Â
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Jan 22, 2006
Keep getting this error when positioning to the last page of a report.
Using Server 2003...SqlRpt Svcs 2000 sp2
Detail error msg:
Exception of type Microsoft.ReportingServices.ReportRendering.ReportRenderingException was thrown. (rrRenderingError) Get Online Help
Exception of type Microsoft.ReportingServices.ReportRendering.ReportRenderingException was thrown.
Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index
Anyone have any suggestions? Any way to find out what collection is blowing?...or where parameter name: index comes from?
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Jun 20, 2008
hello friends
i have table1 and 200 coulumn of table1 :) i have 647.600 records. i entered my records to table1 with for step to code lines in one day :)
i select category1 category2 and category3 with select code but i have just one index.. it is productnumber and it is primarykey..So my select code lines is so slow.. it is 7-9 second.. how can i select in 0.1 second ? Should i create index for category1 and category2 and category3 ? But i dont know create index.. My select code lines is below.. Could you learn me and show me index for it ?? or Could you learn me and show me fast Select code lines and index or etc ??? Also my search code line have a dangerous releated to attaching table1 with hackers :)
cheersi send 3 value of treview1 node and childnode and child.childnode to below page.aspx :)
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Me.IsPostBack Then
If Request("TextBox1") IsNot Nothing ThenTextBox1.Text = Request("TextBox1")
End If
If Request("TextBox2") IsNot Nothing ThenTextBox2.Text = Request("TextBox2")
End If
If Request("TextBox3") IsNot Nothing ThenTextBox3.Text = Request("TextBox3")
End If
End If
Dim searchword As String
If Request("TextBox3") = "" And Request("TextBox2") = "" Then
searchword = "Select * from urunlistesi where kategori= '" & Request("TextBox1") & "'"
End If
If Request("TextBox3") = "" Then
searchword = "Select * from urunlistesi where kategori= '" & Request("TextBox1") & "' and kategori1= '" & Request("TextBox2") & "'"
End If
If Request("TextBox3") <> "" And Request("TextBox2") <> "" And Request("TextBox1") <> "" Then
searchword = "Select * from urunlistesi where kategori= '" & Request("TextBox1") & "' and kategori1= '" & Request("TextBox2") & "' and kategori2= '" & Request("TextBox3") & "'"
End If
SqlDataSource1.SelectCommand = searchword
End Sub
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Jul 9, 2004
Hi,
I'm running a merge replication on a sql2k machine to 6 sql2k subscribers.
Since a few day's only one of the merge agents fail's with the following error:
The merge process could not retrieve generation information at the 'Subscriber'.
The index entry for row ID was not found in index ID 3, of table 357576312, in database 'PBB006'.
All DBCC CHECKDB command's return 0 errors :confused:
I'm not sure if the table that's referred to in the message is on the distribution side or the subscribers side? A select * from sysobjects where id=357576312 gives different results on both sides . .
Any ideas as to what is causing this error?
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Jul 3, 2006
Hi everyone,
When we create a clustered index firstly, and then is it advantageous to create another index which is nonclustered ??
In my opinion, yes it is. Because, since we use clustered index first, our rows are sorted and so while using nonclustered index on this data file, finding adress of the record on this sorted data is really easier than finding adress of the record on unsorted data, is not it ??
Thanks
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Mar 5, 2015
I have a clustered index that consists of 3 int columns in this order: DateKey, LocationKey, ItemKey (there are many other columns in this data warehouse table such as quantities, prices, etc.).
Now I want to add a non-clustered index on just one of the other columns, say LocationKey, like this:
CREATE INDEX IX_test on TableName (LocationKey)
I understand that the clustered index keys will also be added as key columns to any NC indexes. So, in this case the NC index will also get the other two columns from the clustered index added as key columns. But, in what order will they be added?
Will the resulting index keys on this new NC index effectively be:
LocationKey, DateKey, ItemKey
OR
LocationKey, ItemKey, DateKey
Do the clustering keys get added to a NC index in the same order as they are defined in the clustered index?
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Jun 18, 2008
Quick question about the primary purpose of Full Text Index vs. Clustered Index.
The Full Text Index has the purpose of being accessible outside of the database so users can query the tables and columns it needs while being linked to other databases and tables within the SQL Server instance.
Is the Full Text Index similar to the global variable in programming where the scope lies outside of the tables and database itself?
I understand the clustered index is created for each table and most likely accessed within the user schema who have access to the database.
Is this correct?
I am kind of confused on why you would use full text index as opposed to clustered index.
Thank you
Goldmember
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Sep 10, 2007
Hi All,
I 'm working to improve some sql performance.
One of the major syntax inside the SELECT statment is ..
WHERE FIELDA IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='A') AND
WHERE FIELDB IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='B') AND
WHERE FIELDC IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='C') AND
WHERE FIELDD IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='D') AND
WHERE FIELDE IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='E') AND
WHERE FIELDF IN (SELECT PARAVALUE FROM PARATABLE WHERE SESSIONID = "XXXXX" AND PARATYPE='F')
(It's to compare the field content with some user input parameter inside a parameter table... )
I think properly is that the SELECT ... IN is causing much slowness in the sql statement. I have indexed FIELDA , FIELDB, FILEDC etc and those PARAVALUE and PARATYPE in the PARATABLE table. But perfromance is still slow and execution takes >20 seconds for 200000 rows of records.
Do any one know if still any chance to improvide the performance like this?
Much Thanks,
Andy
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Apr 17, 2007
I'm trying to find whether there is a dmv or system view that can help me see the last time an index was rebuilt or created. Assuming I rebuilt an index using tsql commands (not a job with a history), is there a way to find out the last time that index was rebuilt?
Thanks much.
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Mar 1, 2004
I have a really strange problem.
I execute this query:
declare @cid int
set @cid = 2003227
select * from sales s, product p where p.product_Id = s.product_Id and customer_id = @cid
select * from sales s, product p where p.product_Id = s.product_Id and customer_id = @cid or @cid = 0
3 Million rows in sales, 120000 in product.
The first does and index seek, the second an index scan.
The execution plan reports that the scan takes 99.87% of the cost, and the seek takes 0.13%
This problem obviously gets worse the bigger the dataset / query /etc.
The reason I query this, is because it never used to take this long to do index scans. Is there something i can change, something i can fix?
Any help would be appreciated.
Josh
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Mar 18, 2008
Hi,
I just want to know whether any advantage or disadvantage
in doing Reorganize Index And Rebuild Index ....
Plz do comment on this ASAP !!!!
Thanks in advance
Regards
Arv
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Mar 18, 2008
Hi,
I just want to know whether any advantage or disadvantage
in doing Reorganize Index And Rebuild Index ....
Plz do comment on this ASAP !!!!
Thanks in advance
Regards
Arv
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Apr 1, 2006
Hello I want to learn disparity clustered index or nonclustered index and in queries which one run better.
example
select * from orders where orderID=5
to this query clustered or nonclustered
thanks
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Nov 14, 2006
the query:
SELECT a.AssetGuid, a.Name, a.LocationGuid
FROM Asset a WHERE a.AssociationGuid IN (
SELECT ada.DataAssociationGuid FROM AssociationDataAssociation ada
WHERE ada.AssociationGuid = '568B40AD-5133-4237-9F3C-F8EA9D472662')
takes 30-60 seconds to run on my machine, due to a clustered index scan on our an index on asset [about half a million rows]. For this particular association less than 50 rows are returned.
expanding the inner select into a list of guids the query runs instantly:
SELECT a.AssetGuid, a.Name, a.LocationGuid
FROM Asset a WHERE a.AssociationGuid IN (
'0F9C1654-9FAC-45FC-9997-5EBDAD21A4B4',
'52C616C0-C4C5-45F4-B691-7FA83462CA34',
'C95A6669-D6D1-460A-BC2F-C0F6756A234D')
It runs instantly because of doing a clustered index seek [on the same index as the previous query] instead of a scan. The index in question IX_Asset_AssociationGuid is a nonclustered index on Asset.AssociationGuid.
The tables involved:
Asset, represents an asset. Primary key is AssetGuid, there is an index/FK on Asset.AssociationGuid. The asset table has 28 columns or so...
Association, kind of like a place, associations exist in a tree where one association can contain any number of child associations. Each association has a ParentAssociationGuid pointing to its parent. Only leaf associations contain assets.
AssociationDataAssociation, a table consisting of two columns, AssociationGuid, DataAssociationGuid. This is a table used to quickly find leaf associations [DataAssociationGuid] beneath a particular association [AssociationGuid]. In the above case the inner select () returns 3 rows.
I'd include .sqlplan files or screenshots, but I don't see a way to attach them.
I understand I can specify to use the index manually [and this also runs instantly], but for such a simple query it is peculiar it is necesscary. This is the query with the index specified manually:
SELECT a.AssetGuid, a.Name, a.LocationGuid
FROM Asset a WITH (INDEX (IX_Asset_AssociationGuid)) WHERE
a.AssociationGuid IN (
SELECT ada.DataAssociationGuid FROM AssociationDataAssociation ada
WHERE ada.AssociationGuid = '568B40AD-5133-4237-9F3C-F8EA9D472662')
To repeat/clarify my question, why might this not be doing a clustered index seek with the first query?
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Jun 29, 2004
Found out a while back that my facts-tabel has an non-clustered index on its facts_id. In a bunch of procedures an update is executed against a facts_id unfortunately on it's facts-table. I was wondering if changing it into a clustered index is worth the effort / would make sense considering a +110 million facts and re-indexing the other indexes as well? Facts are loaded sequentially, so I would suspect them facts are in the ordered already?
thanx,
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Oct 4, 2007
Hey,
what is the difference between Table Scan und Index Scan?
I find no difitions in the internet
Finchen
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Sep 21, 2007
Hi,
I want to know wht is a
TABLE SCAN
INDEX SCAN
INDEX SEEKand When they are used, Wht is the difference between all these.????
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Oct 25, 2006
Hi all, i have a DTS package that i call from a C# app, i had it working great until i decided to use an activeX script to do the data transformations instead of the row copy. I need to use ActiveX to add a standard name to the last column in the destination table. the problem is the task is executing without errors (from c#) but nothing is happening, its failing silently. If i modify the Data Transformation back to a standard column mapping (with separate DTSTransformations for each column) it works fine, but as soon as i use activeX to handle the transformations it doesn't work. Can anyone tell me what i may be doing wrong. heres the calling code from C# if(f.Name.Substring(13,7).ToLower() == "product")
{
try
{
activity.Log("Starting Product DTS Package...");
DTS.Package2Class package = new DTS.Package2Class();
object pVarPersistStgOfHost = null;
package.LoadFromSQLServer(
"192.168.8.8",
"username",
"thepassword",
Microsoft.SqlServer.DTSPkg80.DTSSQLServerStorageFlags.DTSSQLStgFlag_Default,
null,
null,
null,
(string)ConfigurationSettings.AppSettings["productDTSPackage"],
ref pVarPersistStgOfHost);
package.GlobalVariables.Item(1).Value = f.FullName.ToString();
package.Execute();
package.UnInitialize();
//force release of COM object
System.Runtime.InteropServices.Marshal.ReleaseComObject(package);
package = null;
}
catch(Exception e)
{
activity.Log(string.Format("Failureprocessing {0}",WorkingPath + f.Name) +" - "+ e.Message);
} and the activex i tried to use for the transformations is: '**********************************************************************' Visual Basic Transformation Script'************************************************************************' Copy each source column to the destination columnFunction Main() DTSDestination("Yesmail Id") = DTSSource("product series") DTSDestination("Customer CKM CustId") = DTSSource("product family") DTSDestination("Product SKU") = DTSSource("transaction date") DTSDestination("product model name") = DTSSource("serial number") DTSDestination("serial number") = DTSSource("product model name") DTSDestination("transaction date") = DTSSource("Product SKU") DTSDestination("product family") = DTSSource("Customer CKM CustId") DTSDestination("product series") = DTSSource("Yesmail Id") DTSDestination("fileName") = DTSGlobalVariables("sourceFile").Value <-- this is why im using the activex for this field to get a Global Variable. Main = DTSTransformStat_OKEnd Functionthe weird thing is the PACKAGE runs fine from ENTERPRISE MANAGER with this activex, it just doesn't do it from my Calling app, perhaps i have missed something i need to change in the package constructor? BTW: i do have my assembly signed in C# for the COM wrapper.thanks in advance, mcm
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