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Question 37/132
You develop a SQL Server Integration Services (SSIS) package that imports Windows Azure SQL Database data into a data warehouse every night.
The Windows Azure SQL Database data contains many misspellings and variations of abbreviations. To import the data, a developer used the Fuzzy Lookup transformation to choose the closest-matching string from a reference table of allowed values. The number of rows in the reference table is very large.
If no acceptable match is found, the Fuzzy Lookup transformation passes a null value.
The current setting for the Fuzzy Lookup similarity threshold is 0.50.
Many values are incorrectly matched.
You need to ensure that more accurate matches are made by the Fuzzy Lookup transformation without degrading performance.
What should you do?
The Windows Azure SQL Database data contains many misspellings and variations of abbreviations. To import the data, a developer used the Fuzzy Lookup transformation to choose the closest-matching string from a reference table of allowed values. The number of rows in the reference table is very large.
If no acceptable match is found, the Fuzzy Lookup transformation passes a null value.
The current setting for the Fuzzy Lookup similarity threshold is 0.50.
Many values are incorrectly matched.
You need to ensure that more accurate matches are made by the Fuzzy Lookup transformation without degrading performance.
What should you do?
Correct Answer: C
Explanation/Reference:
Explanation:
Similarity threshold
Set the similarity threshold at the component level by using the slider. The closer the value is to 1, the closer the resemblance of the lookup value to the source value must be to qualify as a match. Increasing the threshold can improve the speed of matching since fewer candidate records need to be considered.
Explanation:
Similarity threshold
Set the similarity threshold at the component level by using the slider. The closer the value is to 1, the closer the resemblance of the lookup value to the source value must be to qualify as a match. Increasing the threshold can improve the speed of matching since fewer candidate records need to be considered.
- Question List (132q)
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- Question 2: You are creating a SQL Server Integration Services (SSIS) pa...
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- Question 15: You have a server named SQL1 that has SQL Server Integration...
- Question 16: You are designing an extract, transform and load (ETL) solut...
- Question 17: You administer a Microsoft SQL Server 2012 database. The dat...
- Question 18: You are designing a SQL Server Integration Services (SSIS) p...
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- Question 20: Note: This question is a part of a series of questions that ...
- Question 21: You are designing a SQL Server Integration Services (SSIS) s...
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- Question 23: You are editing a SQL Server Integration Services (SSIS) pac...
- Question 24: You develop a SQL Server Integration Services (SSIS) package...
- Question 25: Note: This question is a part of a series of questions that ...
- Question 26: You administer a Microsoft SQL Server 2012 database. The dat...
- Question 27: You are designing a SQL Server Integration Services (SSIS) d...
- Question 28: You are developing a SQL Server Integration Services (SSIS) ...
- Question 29: You are developing a SQL Server Integration Services (SSIS) ...
- Question 30: You administer a Microsoft SQL Server 2012 server that has S...
- Question 31: You are performance tuning a SQL Server Integration Services...
- Question 32: You have a SQL Server Integration Services (SSIS) package na...
- Question 33: To support the implementation of new reports, Active Directo...
- Question 34: Note: This question is a part of a series of questions that ...
- Question 35: You are developing a SQL Server Integration Services (SSIS) ...
- Question 36: You are developing a SQL Server Integration Services (SSIS) ...
- Question 37: You develop a SQL Server Integration Services (SSIS) package...
- Question 38: You are developing a SQL Server Integration Services (SSIS) ...
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- Question 40: Some of the data your company processes is sent in from part...
- Question 41: You are designing a SQL Server Integration Services (SSIS) s...
- Question 42: Occasionally a job that executes an existing SQL Server Inte...
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- Question 44: You are deploying a new SQL Server Integration Services (SSI...
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- Question 46: You are creating a SQL Server Master Data Services (MDS) mod...
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- Question 49: You are installing SQL Server Data Quality Services (DQS). Y...
- Question 50: You are creating a Data Quality Services (DQS) solution. You...
- Question 51: You are implementing a SQL Server Integration Services (SSIS...
- Question 52: You are implementing a SQL Server Integration Services (SSIS...
- Question 53: You are developing a SQL Server Integration Services (SSIS) ...
- Question 54: You are using a SQL Server Integration Services (SSIS) proje...
- Question 55: You are developing a SQL Server Integration Services (SSIS) ...
- Question 56: You are completing the installation of the Data Quality Serv...
- Question 57: You are using the Knowledge Discovery feature of the Data Qu...
- Question 58: You have a database named Sales and a data warehouse named D...
- Question 59: You are designing a partitioning strategy for a large fact t...
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- Question 62: You are performance tuning a SQL Server Integration Services...
- Question 63: You are designing an extract, transform, load (ETL) process ...
- Question 64: You are designing a SQL Server Integration Services (SSIS) p...
- Question 65: Your company has several line-of-business applications. The ...
- Question 66: You are troubleshooting an existing SQL Server Integration S...
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- Question 68: You are developing a SQL Server Integration Services (SSIS) ...
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- Question 70: You have a SQL Server Integration Services (SSIS) package th...
- Question 71: You are developing a SQL Server Integration Services (SSIS) ...
- Question 72: You are designing a SQL Server Integration Services (SSIS) 2...
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- Question 74: Which of the following statements about simple and complex d...
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- Question 78: You are designing a SQL Server Integration Services (SSIS) p...
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- Question 91: You are developing a SQL Server Integration Services (SSIS) ...
- Question 92: You are administering SQL Server Integration Services (SSIS)...
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- Question 94: You have a data warehouse that contains all of the sales dat...
- Question 95: You develop a SQL Server Integration Services (SSIS) project...
- Question 96: You are editing a SQL Server Integration Services (SSIS) pac...
- Question 97: You are developing a SQL Server Integration Services (SSIS) ...
- Question 98: In your SSIS solution, you need to load a large set of rows ...
- Question 99: Which of the following T-SQL functions is not very useful fo...
- Question 100: You are writing a SQL Server Integration Services (SSIS) pac...
- Question 101: You are implementing a SQL Server Integration Services (SSIS...
- Question 102: You are using the Knowledge Discovery feature of the Data Qu...
- Question 103: You are deploying a new SQL Server Integration Services (SSI...
- Question 104: You are designing a data warehouse with two fact tables. The...
- Question 105: You are designing a fact table in a SQL Server database. The...
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- Question 109: You are designing a SQL Server Integration Services (SSIS) s...
- Question 110: You are developing a SQL Server Integration Services (SSIS) ...
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- Question 126: You are maintaining a Data Quality Services (DQS) environmen...
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