Qliksense Developer

Qliksense Developer Interview Questions and Answers

Updated 16 Sep 2024
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Q1. What is difference between applymap and join

Ans.

applymap is used to map a value from one table to another while join is used to combine two or more tables based on a common field.

  • applymap is used for one-to-one mapping while join is used for many-to-one mapping

  • applymap is faster than join for small datasets

  • join can handle more complex data relationships than applymap

  • applymap can be used to replace null values with a default value

  • join can be used to aggregate data from multiple tables

Q2. Binary load & Incremental load in Qliksense

Ans.

Binary load loads data from one Qlik Sense app to another, while incremental load only loads new or changed data.

  • Binary load is useful for combining data from multiple apps into one.

  • Incremental load can improve performance by only loading new or changed data.

  • Both can be used together for efficient data management.

Q3. Types of load in Qliksense

Ans.

There are two types of load in Qliksense: script load and data load.

  • Script load involves loading and transforming data using the Qlik scripting language.

  • Data load involves loading data from various sources into QlikSense for analysis and visualization.

  • Script load is done in the script editor, while data load is done in the data manager.

  • Examples of script load include loading data from a CSV file and transforming it using script functions.

  • Examples of data load include connecti...read more

Q4. Peek vs prev in qlik sense

Ans.

Peek is used to look at the value of a field in the previous record, while Prev is used to look at the value of a field in the previous row.

  • Peek function is used to fetch the value of a field in the previous record.

  • Prev function is used to fetch the value of a field in the previous row.

  • Peek can be used to compare values between different records.

  • Prev is useful for calculating running totals or differences between consecutive rows.

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Q5. Applymap in qlik sense

Ans.

Applymap is a function in Qlik Sense used to map values from one field to another based on a mapping table.

  • Applymap function is used to look up values in a mapping table and apply them to a field in the data model.

  • It helps in replacing values in a field with corresponding values from a mapping table.

  • Syntax: Applymap('mapName', fieldToMap, defaultValue)

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