Can You Cache A SSIS Lookup Component To Foxpro V7 With Parameterized Query?
Feb 24, 2006
I am using a lookup component in a SSIS data flow. The lookup is a select to a foxpro table. THe lookup works fine with full cache selected. I cannot get the lookup to work with a partial or no cache. I have the latest Foxpro OLE DB driver installed which I understand to support paramaterized queries. Has anyone had success with using cached lookup to Foxpro? Does anyone know how to set the lookup properties of sqlcommand and sqlcommandparam? I am unable to find any examples in BOL or on the web.
Here are some details. IF I go with "use a table or a view" option with the default cache query I get initialization errors
[lkp_lab_worst_value [6170]] Error: An OLE DB error has occurred. Error code: 0x80040E14. An OLE DB record is available. Source: "Microsoft OLE DB Provider for Visual FoxPro" Hresult: 0x80040E14 Description: "Command contains unrecognized phrase/keyword.".
In the advanced editor I see
SQLCommand set to
"select * from `kcf`"
and SQLCommandParam set to
"select * from
(select * from `kcf`) as refTable
where [refTable].[patkey] = ? and [refTable].[dayof_stay] = ? and [refTable].[modifier] = ? and [refTable].[kcf_code] = ? and [refTable].[source] = ? and [refTable].[kcf_time] = ?"
I believe the above error is because Foxpro V7 does not support the inner subselect . In addition the query contains CRLF without a continuation character (";").
If I remove the CRLF in the sqlcommandparam query, using the advanced editor, I get this design time error "OLE D error occurred while loading column metadata. Check the sqlcommand and sqlcommandparam properties". The designer requires both properties to be set, its unclear to me how the interact.
I cannot find any examples in BOL or on the web on how to set these 2 properties. Can someone give me a few guidelines?
I can get past the design errors by changing sqlcommandparam to a plain select that is VFP 7 compatible ( I removed the subselect and the square brackets):
select * from kcf as refTable where refTable.patkey = ? and refTable.dayof_stay = ? and refTable.modifier = ? and refTable.kcf_code = ? and refTable.source = ? and refTable.kcf_time = ?
But then I get a runtime error
[lkp_lab_worst_value [6170]] Error: An OLE DB error has occurred. Error code: 0x80040E46. An OLE DB record is available. Source: "Microsoft OLE DB Provider for Visual FoxPro" Hresult: 0x80040E46 Description: "One or more accessor flags were invalid.".
[lkp_lab_worst_value [6170]] Error: OLE DB error occurred while binding parameters. Check SQLCommand and SqlCommandParam properties.
I designed an SSIS package about 200 packages in one project. the package extract from live to reporting server. some of my packages are very slow about 10 of them. strage enough the ones with more data number of rows run very fast. I'm using Source->Lookup->Conditional split->OLEDB Destination or OLDB Comand.
Can someone help me to found out what could be the problem. I'm very new in SSIS.
I work in the healthcare area, and am handling the survey data ETL's. There are around 8 different survey areas and based on information received from them for the visit they reference, I want to pull in more info from our invoicing database. My idea is this:
1.) Pull in the flat file to an ODBC staging table 2.) Cache all invoice records that fall between the MIN(Date of Service) and MAX(Date of Service) from the staging table. 3.) First lookup the information needed on patientID, providerID, date of service, and billing location. 4.) For the surveys that didn't match on those 4 columns, try looking up based on patientID, date of service, and billing location (since I could be 99% sure this would still return the record I need). 5.) For the remaining surveys, lookup based just on patientID and date of service. These records will be flagged for manual review because clearly, if a patient has multiple appointments in the same day, this will be prone to error.
However, in trying to use only 3 of the columns in the lookup, I get the error saying basically that I need to utilize all 4. Is there a way around this, or is there an entirely different way I should be approaching this? The reason I thought cache transform was the answer is because I will need to run a different package for each lookup, as the data and logic between each survey will vary, but the invoice data "pool" will stay the same regardless.Â
I would like to know what happens when a very large reference data set for a lookup transform with full caching enabled is getting loaded during package execution and the computer memory runs out or is very low. Does SSIS a) give an out of memory error of some sort b) resort to a no caching or partial caching mode c) maintain the full caching mode but will switch to using the paging file(virtual memory).
I think it will resort to using the page file in which case the benefits of in memory lookups are lost and performance would suffer. If I cannot upgrade the memory or shrink the reference set somehow, i should switch that lookup task to use partial caching or no caching with an indexed lookup table. Would this make sense?
I'm currently loading a package that does a lookup on a column of data type nvarchar(4).The values itself are (A+, A, B+, B, C, D, /). The strange lookup behaviour is happening for each of the cases, so it's not related to a specific value. After trying to put the cache on NO CACHE, the lookup works perfectly. When using the default FULL CACHE the strange behaviour happens. Could it be related to the data type? I have not yet tried to use a CHAR instead of a NVARCHAR but it looks like people have similar issues using CHAR.
I am facing a problem with Lookup component in SSIS. I need to lookup from a transaction table for getting some info, But when im trying to implement the same, the Pre-Execute step itself got failed saying like, €œ[DTS.Pipeline] Information: The buffer manager failed a memory allocation call for 524264 bytes, but was unable to swap out any buffers to relieve memory pressure. 9467 buffers were considered and 5956 were locked. Either not enough memory is available to the pipeline because not enough are installed, other processes were using it, or too many buffers are locked. [Tracer [19717]] Error: A buffer could not be locked. The system is out of memory or the buffer manager has reached its quota. [DTS.Pipeline] Error: component "Tracer" (19717) failed the pre-execute phase and returned error code 0xC020204B.€? Component Tracer is the Look up. Tracer is having around 6.5 mil records. Is there any way to allocate more buffers thru buffer manager? Or is there any alternative to solve this problem? FYI, the hard disk free space is more than 250 GB. Thanks in advance.
If you try to "enable memory restriction" from the Lookup component GUI you need to input both 32 and 64 bit size of maximum memory. However when clicking "OK" on the editor you get a message like :
TITLE: Microsoft Visual Studio ------------------------------
Error at Update Execution Logs [Lookup folder path 1 [4429]]: Failed to set property "MaxMemoryUsage64" on "component "Lookup folder path 1" (4429)".
I have to perform a lookup in a table based on a query like:
"... where ? = [RefTable].fieldID and ? between [RefTable].AnotherFieldValue and [RefTable].AThirdFieldValue"
So, SSIS has put the CacheType to none. As I really need to speed up the job I want to set the CacheType to partial (full isn't an option due to the custom query I use here).
But here it comes: when using partial CacheType, one has to set the cache size manually - and I really don't know what value I should assign to it - is there a guideline on this topic?
I work on a Win2003 server platform with sql server 2005 - 2 processors - 2Gb Ram - enough disc space
I searched around and not been able to find any guidance on this question: if I am designing a lookup transformation, how do I decide what I should set the cache size to?
For the transformation on which I am currently working, the size of the lookup table will be small (like a dozen rows), so should I just reduce it to 1MB? Or should I not even bother with caching for a lookup table that small?
Hypothetically speaking, if I am working with much larger lookups in the future (let's say 30,000 rows in the lookup table), is there some methor or formula that I should use to try to figure out the best cache size?
If the cache size is set larger than the actual data being cached, is the entire cache size allocated in memory, or is the cache size managed to only be as large as it needs to be? In other words, is the cache size a maximum to which the cache will grow, or is it a preset that sets the cache for that lookup to exactly the specified size?
I've a simple lookup transform in SSIS 2008 (R2). I've created it with a full cache and it worked fine. When i switch to partial cache, it will give me this error:
-------------------------------------------------------------------------------------------------- TITLE: Package Validation Error ------------------------------ Package Validation Error ------------------------------ ADDITIONAL INFORMATION: Error at DFT_AdventureWorks [Lookup [411]]: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005.
[Code] ....
I've created a OLE source with the following query :
SELECT SalesOrderID, OrderDate, CustomerID FROM Sales.SalesOrderHeader
And this will flow into the lookup transform and this has the following lookup reference query:
SELECT CustomerID, AccountNumber FROM Sales.Customer WHERE CustomerID % 7 <>0
I am using a lookup and full cache, occasionally i get this warning:[Lookup [150]] Warning: The component "Lookup" (150) encountered duplicate reference key values when caching reference data. This error occurs in Full Cache mode only. Either remove the duplicate key values, or change the cache mode to PARTIAL or NO_CACHE. Now I know it is only a warning but it is highlighting a real issue.Is there a way of capturing that this has happened?
I'm either missing something or this is a bug. I have a Lookup that finds no matches if I use the default option of full caching (everything on the Advanced tab unchecked). The lookup table is relatively small (15348 bytes) in only 544 rows. If I check only the Enable Memory Restriction box and eliminate caching, it works fine. I can also check the Enable Caching box and accept the default cache size of 5MB and it works fine. Anyone have any ideas? I'm running on Standard Edition, SP2.
After converting from SSIS 2008 to SSIS 2012, I am facing major performance slowdown while loading fact data.When we used 2008 - one file used to take around 2 hours average and now after converting to 2012 - it took 17 hours to load one file. This is the current scenario: We load data into Staging and Select everything from Staging (28 million rows) and use a lookups for each dimension. I believe it is taking very long time due to one Dimension table which has (89 million rows).Â
With the lookup, we currently are using partial cache because full cache caused system out of memory.Lookup Transformation Editor - on this lookup -Â how to increase the size on partial Cache size 64-bit? I am being stuck at 4096 MB and can not increase it. In 2008, I had 200,000 MB partial cache size.
My source has 2.2 million of records. I'm performing the incremental load.In the lookup transformation i used the destination table for the reference using Full cache mode.For the first time package executed successfully but when i executed the package second time, Suddenly Package hangs while running.Than i truncate the data from the destination table and restart the SQL Server Services.After doing all this i executed package again and it worked but when i executed package second time, again package hangs up .I have 8GB RAM and i5 2.5 GHz Processor laptop.
ConnectionManager manager = Microsoft.SqlServer.Dts.Runtime.DtsConvert.GetWrapper(base.Connections.Connection); IDTSConnectionManagerCache100 cache = manager.InnerObject as IDTSConnectionManagerCache100; if (cache != null) { Â System.Windows.Forms.MessageBox.Show("Cache is found."); } and use IDTSConnectionManagerCacheColumn100 id = connMgr.Columns["Id"]; get the column info.
but how do i get the cache connection content ?I want to look in the content in a script component code.Â
I have a package which loads the fact data from Stage into Warehouse database. This packages normally handles early arriving facts. In that package I use lookup to check the dims which exists, and where they don't I populate the dimension and use the surrogate key to load the facts. This works fine.
I had a request to load 7 years worth of historical data. Instead of re-writing the package I took the package which handles early arriving facts and deleted the section which handles early arriving facts. I knew all the dimensions already exists and I don€™t want to hinder the performance when I load millions of rows. During testing I found something very interesting.
If you have configured error path in the lookup component and removed the error path later, the package will NOT fail (won't produce error) even if the lookup can't find matching values.
Correct Behaviour Example 1: [1] Stage fact table has 2 records, with product code 1 and 2. [2] Warehouse Product table has only product code 1. [3] Source - Lookup - Destination in the data flow task. Error port on lookup is not configured. [4] From source we read 2 records, and the package will fail at lookup as it can't find Product Code 2.
Correct Behaviour Example 2: [1] Stage fact table has 2 records, with product code 1 and 2. [2] Warehouse Product table has only product code 1. [3] Source - Lookup - Destination in the data flow task. Error port on lookup is configured to go to RowCount. [4] From source we read 2 records, and the package will run successfully. It will put one record into warehouse table and send the invalid record into RowCount.
Incorrect Behaviour Example 3: [1] Stage fact table has 2 records, with product code 1 and 2. [2] Warehouse Product table has only product code 1. [3] Source - Lookup - Destination in the data flow task. Delete the configured error port from lookup. [4] From source we read 2 records, and the package will run successfully. It will put one record into warehouse table and discard the other.
My understanding if the error port is NOT configured as shown in example 2, it should fail as shown in example 1.
Am I missing a point or is this suppose to be a correct behaviour or is it a bug?
i am doing a lookup to insert new records when the lookup has failed.
this works perfectly normally. however when my recordset has a name-column of type string with width 5 and my lookup-table has a name-column of char(20) the lookup will always fail and henc always inserting new records although the name "foo" should match.
is there a workaround for this, or do the compare-columns always have to be of the same type/length ?
Let's say I've a dimension with over 20 million rows. During my ETL, I need to replace the business keys with all the surrogate keys from this large dimension. The logic choice is to use the Lookup component. But does the Lookup component load all the 20 million rows into the memory? For a large dimension surrogate key lookup, what is the typical approach? TIA.
i am using a lookup component to do a typical SCD. Compare the Natural keys and if they are the same -- REdirect the rows and do whatever, If not present -- means the Error Rows -- redirect and do whatever.
WHen I use the component to do a Historical Load (which means -- there are no rows are in the Destination table) and put the Memory to Partial Cache -- the Data Flow STalls after about 46,000 rows, it just doesnt complete after that. But the moment I switch it to Full Cache -- it flows -- But Partial is what I am supposed to be using -- keeping in mind -- the Incremental Loads. Why does the component stall ?
I had used Partial Cache in an earlier project -- with a 18 Million Row Table --(albeit for incremental load) and it worked fine (though is was slow -- but tleast it worked) -- but now I am trying to load just 300,000 rows but it stalls.
I am using a 2GB RAM machine -- and set the Memory to 750 MB/500 MB nothing worked
I tried two different machines -- same thing happened.
Error: 0xC020901E at Load_tblDelayfact, Lookup_DL_CODE [184]: Row yielded no match during lookup.
Error: 0xC0209029 at Load_tblDelayfact, Lookup_DL_CODE [184]: The "component "Lookup_DL_CODE" (184)" failed because error code 0xC020901E occurred, and the error row disposition on "output "Lookup Output" (186)" specifies failure on error. An error occurred on the specified object of the specified component.
Although the Lookup table is filled in with the following SELECT ststement:
SELECT DISTINCT DL_CODE, DL_COMMENT FROM DL_Temp AS T1
WHERE NOT EXISTS(
SELECT * FROM DL_CODE AS T2 WHERE T1.DL_CODE = T2.DL_CODE AND T1.DL_COMMENT = T2.DL_SENT_COMMENT
)
So there is no way that there is a record in DL_Temp (The data source) that does not exist in DL_CODE( the lookup table). Indded, I did serveral queries and tests to check that no such data exist and I found that no such record exists.
Please help me and tell me what can be the reason for this error. I used the same package on the same data yesterday and every thing went fine. Is that a bug that any of you faced before.
Is it possible to reuse a Lookup component which is configured with Full chaching?
My requirement is as follows....
A input file have 2 columns called CurrentLocation and PreviousLocation. In the dataflow, values of these two columns needs to be replaced with values from a look up table called "Location".
In my package i have added two LookUp components which replaces values of CurrentLocation and PreviousLocation with the values available in the table "Location". Is there any way to reuse the cache of first lookup component for second column also?
In a Data Flow, I have the necessity to use a SSIS variable of type €œObject€? inside Script Component and assign to it the content of 'n' variables of string type. On exiting from the script the variable of type object should contain something like in the following lines: AAAAAAAAAAAAAAAAAAAAAAAAAAAAA BBBBBBBBBBBBBBBBBBBBBBBBBBBBB CCCCCCCCCCCCCCCCCCCCCCCCCCCCC DDDDDDDDDDDDDDDDDDDDDDDDDDDDD €¦€¦€¦€¦€¦€¦€¦. €¦€¦€¦€¦€¦€¦€¦. On exiting from the data flow I will use the variable of type Object in a Script Task, by reading each element in a cyclic fashion. Is there anyone who have experienced something like this? Could anyone provide any example of that? Thanks in advance!
Hi all I'm into a project which uses a lot of views for joining 2 or more tables. Using the MERGE component in SSIS will be a huge effort coz it only has 2 inputs and I gotta SORT the input too. Isnt it possible to have a VIEW like component that joins more than 2 tables and DOESNT need sorting?? (I've thought about creating views in database engine but it breaks my data floe in SSIS and is'nt a practical solution)
I recieve an error when I use the Lookup component in SSIS that reads:
Statement(s) could not be prepared.
I'm using a SQL 2005 DB as the source which runs into a lookup table and is use to compare records with an SQL 2000 Database. I've created connection managers successfully to both these databases. When trying to use the results of an SQL Query for the lookup to the SQL 2000 database (which is a linked server) and I try to map the columns, the error pops up and exits out of the lookup properties Window
The details to the error read:
Program Location: at Microsoft.SqlServer.Dts.Tasks.ExecuteSQLTask.Connections.SQLTaskConnectionOleDbClass.PrepareSQLStatement(String sql, Boolean bypassPrepare) at Microsoft.DataTransformationServices.Design.DtsConnectionCommonControl.CheckSqlQuery()
I'm looking to use the results of this comparison to output in some form of a report. Ideas would be greatly appreciated!
I have a requirement to access a lookup table from within an SSIS Transform Script Component
The aim is to eliminate error characters from within the firstname, lastname, address etc. fields by doing a lookup of an ASCII code reference table and making an InStr() type comparison.
I cannot find a way of opening the reference data set from withing the transform.
How i can create parameterized sql query .This is my basic idea to implement.
select * from dimemployee
where name = ?
or
exec proc sp_para_employee ?
how can i pass expocit parameter (that means when i run the package that time it should ask me or when i pass the parameter should execute ,satisfy atleast one xondition ).rf any one have script please provide me because i tried all angles using books on line and other resorces.
I have an Excel file which contains some data. I want to load that into a SQL server Table. Here are my conditions :
1. If the table doesn't have any matching records from the Excel file, then my DFT should load the data from that Excel to the Dest Table.
2. If the table has even one or more matching records, then the DFT should not process at all, instead I should send an email to the business stating that there are some matching records and hence the package is not process...ed.
P.S. If i use Lookup, I have two matching and non-matching output. which will process the non matching records into the table and matching can be redirected to any flat/Excel file. But i don't want to do this. I just want to lookup the Sql Server table and excel.
It'll be good if there is an additional option in the Lookup "Fail component on matching records".
