20. Lead and Lag functions in SQL

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Lead and Lag functions in SQL

In this video we will discuss about Lead and Lag functions.

Lead and Lag functions
Lead function is used to access subsequent row data along with current row data
Lag function is used to access previous row data along with current row data
ORDER BY clause is required
PARTITION BY clause is optional



  1. learn by doing it
  2. SQL Window Function
  3. SQL Window Functions
  4. Window Function in SQL
  5. SQL Analytic Function
  6. Analytic Function
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