SQL Tutorial > SQL SUB QUERIES

Correlated Select, Update & Delete Queries

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A correlated select, update, and delete query is a type of SQL query that lets you delete all the rows from a table that are related to a specific row in another table.

This is how it works:

  • SELECT * FROM t1 WHERE id=2;
  • SELECT * FROM t2 WHERE id=1;
  • DELETE FROM t1 WHERE id=2;

With the help of artificial intelligence, you can now get a list of relevant questions to ask your customers or prospects. This will help you to improve your marketing campaign and increase the chance of getting more leads.

The algorithm can be used to generate content ideas for a specific topic or niche. The tool can also be used by digital agencies to generate content for their clients. The algorithm is able to generate content based on the keywords and topics that it has been trained on. This ensures that the generated content is relevant and up-to-date.

A delete query was used to remove a record from the database. Nowadays, it is used to remove content from a website. Update queries can be used by developers to make changes to their application without having to write code for each change. Update queries are also helpful during testing when you want to see how an application has changed after making changes to it.

C correlated select, update, and delete queries are the three most common SQL statements that you use when you need to update multiple rows in a table.

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ruhina qureshi
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Awesome Classes ,Both tutors explains the concept very nice

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Yadav Aakash
5

very useful thank you learnvern

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Ashish
5

The course is very good. I have stuck at a point that how you create multiple rows with a single insert in sales.customer table. I get only one customer data. this table is related to bikestore data.

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nayazbasha sk
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very useful thank you learnvern

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Mahima Patel
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very usefull......thanks

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Priya Kushwaha
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Very Good trainer

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chanchal singh
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you guys are doing nice job. thanks

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Umesh Wankhede
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Not too much interactive

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Monesh Ram
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Well Explained in Every Chapters..

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GAJANAN DIGAMBAR MODE
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very easy to understand SQL its was dream to learn SQL. Thanx for Learnvern

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  1. Getting Started
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  1. SQL Datatypes
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  2. SQL Commands
    21m 59s
  3. What is DBMS
    27m 51s
  4. What is RDBMS
    5m 23s

  1. Database Relationships
    11m 35s
  2. Primary Key
    6m 50s
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    3m 34s
  4. Foreign Key
    4m 2s
  5. Difference between PK, UK and PK & FK
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  1. SQL Server Installation Step by Step
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  1. How to Create Database in SQL Server
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    5m 5s

  1. SQL Constraints
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    28m 12s

  1. Filtering Data using Selection Command
    31m 53s
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  3. SQL Order by Clause
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    26m 58s

  1. Aggregate Functions in SQL for Data Analysis
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  8. Row Number Function
    8m 3s
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  10. How to use SQL Conditional Statements
    4m 22s
  11. How to use SQL Group by Clause
    4m 55s
  12. SQL Practical with Examples
    49m 46s
  13. Assignment : SQL Date and Time
    15m 16s

  1. Type of Joins in SQL - INNER, LEFT
    21m 24s
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  3. SQL Joins Practical Session 1
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  4. SQL Joins Practical Session 2
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  5. SQL Joins Practical Session 3
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  6. SQL Joins Practical Session 4
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  7. SQL Joins Practical Session 5
    29m 41s
  8. Assignment : SQL Joins
    15m 5s
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    13m 25s
  10. Assignment : SQL Functions 2
    9m 25s

  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
    19m 42s
  8. Correlated Select, Update & Delete Queries
    33m 15s
  9. SQL Union
    18m 3s
  10. SQL EXCEPT & INTERSECT
    14m 33s
  11. Assignment : SQL SubQueries
    30m 7s

  1. SQL Pivot, UnPivot Practical Example - 1
    37m 28s
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  1. What are Views?
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    16m 41s
  3. Examples of SQL Views Part -2
    17m 47s
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    10m 17s

  1. What is SQL Index?
    13m 29s
  2. SQL Index types
    24m 50s

  1. Create Tables using Select Statement
    41m 2s
  2. Using Correlated Sub Query, Group By with Select Statement
    40m 2s
  3. Using Group By and Having Clauses with Select Statement
    23m 32s
  4. Using Index Optimizer with Select Statement
    23m 24s
  5. Using Union with Select Statement
    35m 4s
  6. Adding Multiple Records with Insert Statement
    22m 42s
  7. SQL Insert - Considerations and Best Practices
    9m 19s
  8. Insertion from Multiple Tables
    22m 11s
  9. SQL Delete - Types of Delete Operation Part -1
    16m 41s
  10. SQL Delete - Types of Delete Operation Part -2
    11m 38s
  11. Assignment : SQL Insert, Update & Delete
    7m 24s

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

  1. Course Summary
    9m 6s

  1. Interview Questions Part 1
    22m 2s
  2. Interview Questions Part 2
    20m 56s

  1. Career Guideline
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