I am doing a lookup that requires mapping 2 columns in the column mapping section. When I do this, I get the error "Row yielded no match during lookup" . The SQL that I captured in SQL profiler does find the record when I run it in Management Studio. I have already tried trimming everything to no avail.
Why is this happening?
I tried enabling memory restrictions but then I my package hangs and I get a SQLDUMPER_ERRORLOG.log file with the following logged:
I've got a data set on which I'm trying to perform the same as excel'svlookup formula using SQL, but do not know how. Can anyone help?If you picture me having two tables Table_A and Table_B and they looklike this;Table_AName SportJohn FootballJohn RugbySteve CyclingSteve RunningTable_BName AgeJohn 23Steve 24Peter 25How do I extract All from Table_B and one Sport from Table_AI.E I want to end up with something like this...Name Age SportJohn 23 FootballSteve 24 CyclingPeter 25 NULLThanks in advance,Ciarán
I have a Conditional Split with 3 outputs. On the first output I have a lookup, when I execute the package I have 56 rows going through the Conditional Split, all rows are then going to the 2nd and 3rd output but the lookup on the first output generates an error "Row yielded no match during lookup".
I don't understand why the lookup is generating an error while there is no row going through it.
Could someone from the dev team please share as much details as you're comfortable with regarding the formula or logic used to calculate the confidence for a fuzzy lookup match?
Particularly I'm trying to understand how the confidence drops when there are several fuzzy matches for one input row.
With 1 row in the lookup table, that fuzzy match shows 98% confidence. If there's a duplicate row in the lookup table, then fuzzy lookup returns two matches, both with 46% confidence. If there's a triplicate row in the lookup table, then fuzzy lookup returns three matches, all with a 30% confidence. Makes sense because confidence tells you how confident it is that this particular match is the best match.
Now take a different match which is lower quality. Single row = 77% confidence, duplicate row = 43% confidence, triplicate row = 30% confidence. So you see that confidence doesn't shrink consistently. That's why I would like to know the formula.
I have configured a lookup transformation to 'redirect error' all no-matched rows to a text file using the flat file destination.
Now I want to send the same text file as an email.I Know email can be send using the send email task but i need to know where to place send email task and how to check whether flat file contains the error data.
Can we use the send email task on eventhandler and invoke the same in case of such error "row yielded no match during lookup" so that we can send the such non matching rows as an email.
Or else any other way to send an email after generating the text file ocntaining the non matching rows.
I have a fuzzy lookup task that compares a source list of contacts to a reference list of contacts with the default settings. I did some testing by adding seed data that I knew would produce somewhat high similarity hits. All of the seeded contacts but one came back with the expected high sim values. When I looked for the one that didn't, I noticed another match had come up but it had a very low similarity of .17. I then did some research and discovered the reason was the MaxOutputMatchesPerInput setting which was set to 1. I then set it to 3 and reran the package and sure enough my seeded contact that was missing before now showed up. I thought the best match would show up if the MaxOutputMatches was set to 1? That is not the case in my testing.
For example, Donna Mizeman was in the reference list. I added Don Miseman to the source list to seed it. The only match that came back was something like Dieman Abdul .... So the initial match had a similarity of .17 but when MaxOutputMatchesPerInput is set to 3 the best match (seeded) has a similarity of .72.
For one of my SSIS projects that does a fuzzy lookup on a table, I opted to create an index and
to maintain the stored index. The index got created and subsequent project execution was able to
use that index.
Now I want to update certain rows in that table. When I run the update statement I get the following error.
How can I retain the index and still be able to update the table?
update location_stage set batchid = 'APR07N'
where batchid is null and eventid = '20070528020041';
Msg 6549, Level 16, State 1, Procedure sp_FuzzyLookupTableMaintenanceInvoke, Line 0
A .NET Framework error occurred during execution of user defined routine or aggregate 'sp_FuzzyLookupTableMaintenanceInvoke':
System.Data.SqlClient.SqlException: Transaction is not allowed to roll back inside a user defined routine, trigger or aggregate because the transaction is not started in that CLR level. Change application logic to enforce strict transaction nesting.
System.Data.SqlClient.SqlException:
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.SqlInternalConnectionSmi.ExecuteTransaction(TransactionRequest transactionRequest, String transactionName, IsolationLevel iso, SqlInternalTransaction internalTransaction)
at System.Data.SqlClient.SqlInternalTransaction.Rollback()
at System.Data.SqlClient.SqlTransaction.Rollback()
at Microsoft.SqlServer.Dts.TxBestMatch.TableMaintenance.TranWrap(DataCleaningOperation c)
I am having problems with a lookup transformation. I have a row in my lookup table for blank ('') source data. If I test the join using SQL the match is made, but the Lookup transform doesn't consider it a match and sends it to error output. Is there a property that I don't have set correctly or something else I am forgetting?
The illustration below is for a customer dedupification project. The Source file, containing customer name and address records, is conditionally split based on 7 ranges of substring(city,1,2) to distribute the load across 7 different threads for parallelization. Each customer record in the source file is looked up against a reference table named Location_Stage for its existence using the Fuzzy Lookup transformation.
The reference table Location_Stage has around 10 miilion+ records. The source file would normally have around 1 million records.
I am wondering :
- if it would be possible to partition the Match Index of the reference table (NOT the reference table) into 7 partitions based on 7 ranges of substring(city,1,2) and maintain these partitions on different drives? - if it is possible to specify a particular partition to be used by a FzLkup transformation? - if the partitioning approach will improve the performance of the Fuzzy Lookups?
Source File Feed | Split data into 7 groups based on substring(city,1,2) | ------------------------------------------------------------------------------------------------------------------------------------------ | | | | | | | UnionAll UnionAll UnionAll UnionAll UnionAll UnionAll UnionAll | | | | | | | FzLkup FzLkup FzLkup FzLkup FzLkup FzLkup FzLkup | | | | | | | Split Split Split Split Split Split Split | | | | | | | ------------- -------------- -------------- -------------- -------------- -------------- -------------- | | | | | | | | | | | | | | <- - - - - - - Write the Canonicals and Dupes from each of these splits into database - - - - - - - - ->
I have a very basic Lookup in my SSIS package that looks up against two columns and outputs a row to a table. Now currently if there is no exact match, it writes a null in my destination table. How do I simply drop all those rows that dont produce an exact match? I tried using the 'Ignore' error output, but with that it writes NULLS into my destination table. With the 'Redirect' it is looking for a place to redirect the error (NULL) rows, and I dont want to deal with the hassle or writing these NULL values to a file or table just to delete them afterwards. I just simply want to forget about all those rows that dont produce an exact hit and only fill in the destination table with those that do produce a hit. How can I drop these lookup rows that dont produce an exact match?
In BOL it says: "The Lookup transformation performs an equi-join between values in the transformation input and values in the reference dataset. Using an equi-join means that each row in the transformation input must match at least one row from the reference dataset. If there is no matching entry in the reference dataset, no join occurs and no values are returned from the reference dataset. This is an error, and the transformation fails, unless it is configured to ignore errors or redirect error rows to the error output. "
I have a lookup transformation which is supposed to find a match on two fields in the reference dataset (a table in my case) but strangely, when I execute my package and the reference table is empty the lookup still finds match for each row of my input dataset.
Does anyone have an idea why? I could'nt find anything about that in BOL.
The Lookup Transformation fails to match this datatype when full caching is enabled. When partial caching is activated (Edit > Advanced, Enable Memory Restrictions > Enable Caching) the lookup works.
In the third column I'm trying to stated if the dates are different but when i change the first column to show just the date and not the time it still says they are different. How can i round or change the first column to just reflect the date and not the time so i can compare it to the second column.
I have a data list that will grow over time. The values are listed vertically in a column; most recent value at the bottom. I am trying to figure out how to setup a formula to figure out the standard deviation on the most recent 30 values automatically. For instance if the column contains 30 values and I add the 31st value, I'd like to have to have the standard deviation displayed in a cell and automatically shift from calculating on values 1-30 to values 2-31. Is this possible?
Is there a property or a format type that I can use on a field to enter an excel formula and have it actually be a formula once it is saved to excel out of reporting services.
This is a 'what if' report. That the users want to fiddle with after it is generated.
I have item number, cost, sell price, and discount from the database. I calculate the gross profit and the percent from those fields. They want to take this report, save it to excel and then have the gross profit change when they enter a new discount amount.
I have tried to just enter the fields like they would look in excel but the report just shows A3 - A2. If I use the = before it will not run and says A3 is not defined. I have tried quotes, parenthesis, square brackets any thing that looked remotely possible in properties menu to have the values save as a formula.
I don't think it is possible but would like a second opinion.
In SQL server Reporting service we need to export excel formula for summing column values. scenario : After generating report we are exporting report to excel file using report viewer.when user will modify a column value we need to calculate(update) automatically sum of the column values.Basically we are setting excel formula.
is it possible to replicate this in SSRS I wonder??I have included the code of the fields used and a snapshot of some data, and also how the Pivot looks in Excel.
I am trying to fetch rows from Excel file and upload them into a SQL Server 2005 table. I need to perform a couple of lookup transformations on the data before inserting only those rows that do not exist in the database. I have redirected the error output of the lookup transformation to an OLE DB Destination.
However, when I execute the package, even if the rows exist in the DB, they are getting inserted again. The lookup is failing when it should not!
We did some "at scale" fuzzy lookup tests today and were rather disappointed with the performance. I'm wanting to know your experience so I can set my performance expectations appropriately.
We were doing a fuzzy lookup against a lookup table with 25 million rows. Each row has 11 columns used in the fuzzy lookup, each between 10-100 chars. We set CopyReferenceTable=0 and MatchIndexOptions=GenerateAndPersistNewIndex and WarmCaches=true. It took about 60 minutes to build that index table, during which, dtexec got up to 4.5GB memory usage. (Is there a way to tell what % of the index table got cached in memory? Memory kept rising as each "Finished building X% of fuzzy index" progress event scrolled by all the way up to 100% progress when it peaked at 4.5GB.) The MaxMemoryUsage setting we left blank so it would use as much as possible on this 64-bit box with 16GB of memory (but only about 4GB was available for SSIS).
After it got done building the index table, it started flowing data through the pipeline. We saw the first buffer of ~9,000 rows get passed from the source to the fuzzy lookup transform. Six hours later it had not finished doing the fuzzy lookup on that first buffer!!! Running profiler showed us it was firing off lots of singelton SQL queries doing lookups as expected. So it was making progress, just very, very slowly.
We had set MinSimilarity=0.45 and Exhaustive=False. Those seemed to be reasonable settings for smaller datasets.
Does that performance seem inline with expectations? Any thoughts to improve performance?
I'm working with an existing package that uses the fuzzy lookup transform. The package is currently working; however, I need to add some columns to the lookup columns from the reference table that is being used.
It seems that I am hitting a memory threshold of some sort, as when I add 3 or 4 columns, the package works, but when I add 5 columns, the fuzzy lookup transform fails pre-execute:
Pre-Execute Taking a snapshot of the reference table Taking a snapshot of the reference table Building Fuzzy Match Index component "Fuzzy Lookup Existing Member" (8351) failed the pre-execute phase and returned error code 0x8007007A.
These errors occur regardless of what columns I am attempting to add to the lookup list.
I have tried setting the MaxMemoryUsage custom property of the transform to 0, and to explicit values that should be much more than enough to hold the fuzzy match index (the reference table is only about 3000 rows, and the entire table is stored in less than 2MB of disk space.
Say I want to lookup a value in another dataset, but there is a grouping that requires you to know what the values for each level is in order to get to the correct detail record.  Can you still use the lookup function with more than one field to compare against? So for example
Department \___SalesPerson     \___Measure
I want to be able to add a new row at the Measure level, but lookup each field from another dataset. In order to do that I will need the Department AND SalesPerson values to do the lookup, but I dont think the Lookup function will let us do that will.
Actually this is in regard to SCD Type 2 Dimension, Scenario is like that I am moving Fact table from some old source and I have dimensionA description value in fact which I want to replace with appropriate id from Dimension Table and that Dimension table is SCD Type 2 based on StartDate and EndDate and Fact Table doesn't contains direct date value rather there is timeId in Fact so to update the value in Fact table I have to Join Time Dimension table and other Dimension Table to replace fact Description with proper Id.
I am designing a ssis package,This is intends to mine text data(Data extracted from websites). Term lookup/Term extraction has been used as tools for mining. I have lookup terms defined with me for reference table,but the main problem lie in extracting the nearby text/number/charcters to these lookup terms during mining. For example : I found noun "Email" 200 (frequency score) times in my text,Now I want to extract nearby email address(this is also true for PhoneNumber,Address attributes also).so how can I achieve this with SSIS. If u have some idea/suggestion to carry out this challenge with or without Term Extraction/Term Lookup,plz do write here.
I am create a database and want to store some value automatically in some field i.e say i have 3 column 1) salary(int),2)tax(int) and 3rd field total salary(float) . i want to automatically fill total salary field as Column1-Column2 while i daont have any Idea How to do that? please help me? any idea or tutorial..example anything...
hi,my users can make posts in my web application, i mean they fill a form and the information they filled will be saved in sql server 2000 and can be shown in web application,now i want to give each post an Id and save it in the database, how can i do that? does sql server have the abilities or i should do sth in my c# application thanx
i wonder what is the best approach to use !!!i have creditLimit column in Customer Table the default value will be 500 and this limit to allow users to send sms from my website ..... every month they will be allowed to send 500 sms referring to the credit limit column.... now !!if the user sent today some sms and after few days sent another 20 and after one week he sent 150 SMS as a total so that means he has only 350 SMS as credit to use this month!!!so what is the best approach to implement this solution ? shall i have another field in the table called 'CreditUsed' and that will be updated each time the user will send SMS and this value will be compared with the credit limit ORi use the formula for the column to calculate the credit left and do the maths !!!what is the best approach as you think ???thnaks for reading this question !!
hi there. I have asked this question before in a different section of the forum without much reply, and its probably because i was asking the wrong people. I need to calculate a qouta for an election. SqlCommand SqlCmd1 = new SqlCommand("SELECT count(vote)FROM PRTest", SqlCon1); int quota = (count(Vote) + 1) / ((11) + 1); My problem is this: how to i get the count(vote) value from the Sql Statement to the formula.
