SQL For Data Analysis > SQL SUB QUERIES

SQL Correlated Subqueries Part 3

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A correlated subquery refers to a column of a table that is not in the FROM clause of the query. The column can appear in both the Projection and the WHERE clauses. Correlated subqueries, in general, degrade performance.

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  1. SQL Datatypes
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  2. SQL Commands
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  3. What is DBMS
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  1. Filtering Data using Selection Command
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  1. Practice: SQL Subqueries
    26m 41s
  2. Practice: SQL Subqueries & Unions
    22m 29s
  3. SQL Correlated Subqueries Part 1
    20m 21s
  4. SQL Correlated Subqueries Part 2
    30m 51s
  5. SQL Correlated Subqueries Part 3
    30m 45s
  6. SQL Correlated Subqueries Part 4
    25m 7s
  7. SQL Correlated Subqueries Part 5
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  8. Correlated Select, Update & Delete Queries
    33m 15s
  9. SQL Union
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  11. Assignment : SQL SubQueries
    30m 7s

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    13m 29s
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    24m 50s

  1. Create Tables using Select Statement
    41m 2s
  2. Using Correlated Sub Query, Group By with Select Statement
    40m 2s
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    23m 32s
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    23m 24s
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    35m 4s
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    22m 11s
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    7m 24s

  1. Loading & Connecting Different Files in SQL
    11m 18s

  1. Course Summary
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  1. Interview Questions Part 1
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  1. Career Guideline
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