# What is the difference between Fuzzy Lookup and Fuzzy Grouping?

What is the difference between Fuzzy Lookup and Fuzzy Grouping?

## What is the difference between Fuzzy Lookup and Fuzzy Grouping?

Fuzzy Lookup performs data standardization, correcting and providing missing values. Fuzzy Grouping performs a data cleaning task by identifying rows of data that are likely to be duplicates. Fuzzy Lookup enables you to match input records with clean, standardized records in a reference table.

## What is the use of fuzzy lookup?

Fuzzy Lookup utilizes advanced mathematics to calculate the probability that what it finds matches up with your search entry, which means the tool works even when characters (numbers, letters, punctuation) do not match up exactly. Think of it as a beefier version of VLOOKUP that is more flexible and even easier to use.

Which of the following transformation is used to perform data cleansing by finding rows that are likely duplicates?

Fuzzy Group Transformation: The Fuzzy Group Transformation is used to do data cleansing by finding rows that are likely duplicates and reduce the number of duplicates within a dataset based on the Matching Decision.

### What is Merge transformation in SSIS?

Merge Transformation in SSIS is used to merge two inputs (such as tables or files) and produce one output. Merge Transformation is very useful when we want to combine the error path data (after handling the errors) and normal data.

### What is fuzzy grouping in SSIS?

The Fuzzy Grouping Transformation in SSIS is used to replace the wrongly typed words with correct words. For example, if 98 people typed the country name as India and two people types as Indi, then SSIS Fuzzy Grouping Transformation will replace the Indi with India.

What is the use of fuzzy lookup in SSIS?

The Fuzzy Lookup Transformation in SSIS is used to replace the wrongly typed words with correct words. Unlike Lookup Transformation, the Fuzzy Lookup transformation in SSIS uses fuzzy matching to find one or more close matches in the reference table and replace the source data with reference data.

## How do you prevent duplicate records in SSIS?

Drag Sort Transformation and Connect Flat File Source to it. Double Click on Sort Transformation and Choose the columns to Sort. Also Check the Check Box : Remove rows with duplicate sort values and then click OK.

What is difference between Merge and Merge Join in SSIS?

Both are used to combine rows from two data sources, but each has its own way of merging them. While Merge transformation is used to combine rows (such as UNION operation), SSIS Merge Join transformation is used to combine columns between different rows (such as SQL Joins).

### How do I use Fuzzy Lookup in SSIS?

Create a new connection by using the Configure OLE DB Connection Manager dialog box. Specify that the transformation should create a new index to use for the lookup. Select the existing table to use as the reference (lookup) table. Select this option if you want to save the new lookup index.

### What is fuzzy deduplication?

By allowing for a “fuzzy” deduplication where the script identifies mostly similar documents, we can sidestep any issues that might cause two otherwise duplicate documents to fall out of step with each other like stray punctuation, capitalization, whitespace, etc.

How to perform fuzzy grouping transformation in SSIs using bids?

STEP 1: Open BIDS and Drag and drop the data flow task from the toolbox to control flow and rename it as Fuzzy Grouping Transformation in SSIS. Double click on it, and it will open the data flow tab. STEP 2: Drag and drop OLE DB Source, Fuzzy Grouping transformation from the SSIS toolbox to the data flow region

## What is fuzzy grouping transformation?

Fuzzy Grouping transformation is used to group the data within the same data set rather than as a matching technique. For example, if you get a list of employees in text files, within the text files, there can be the same name duplicated but with different spellings. Fuzzy Grouping technique can be used to find the same name in the same list.

## What is fuzzy lookup transformation (FST) in SSIs?

This article helps you to understand the usage of the Fuzzy Lookup Transformation in SQL Server Integration Services (SSIS). SQL Server Integration Services (SSIS) is said to be a zero-code tool that can be used to integrate data from multiple sources.

How to adjust the similarity threshold in SSIs fuzzy grouping transformation editor?

The SSIS Fuzzy Grouping Transformation Editor provides a slider to adjust the similarity between 0 and 1. If the similarity threshold is closer to 1, the source column should match more accurately to reference data.