SQL For Data Analysis > Advanced SQL

SQL Delete - Types of Delete Operation Part -2

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To erase existing records in a table, use the DELETE statement.

In an Oracle database, there is no difference between delete and delete from; yet, writing code like this is typical. [WHERE condition] DELETE FROM table This conforms to the SQL-92 standard.

To eliminate all records, the SQL Truncate statement locks the table and page. The Delete command creates a record in the transaction log for each removed row. The truncate command does not add entries to the transaction log for each removed row. The Delete command is more time consuming than the Truncate command.

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Aman Kanaujia
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All good , but provide the data also for the assignment , Without data the interest is less day by day from the course. So, try to solve this problem as asap.

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Snehil
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Everything is good but keyboard sounds more harsh and overlap your voice whereas this course is best.

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FAROOK MOHAMMAD
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Hello sir, explaination is excellent. I have a request please send the db in excel or SQL file.

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Hari Prakash
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In SQL Join Function's 2nd video - Teacher's voice dose not match with background content that are plays

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Aakash Mavar
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Ashok Kumar Sonkar
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Super Duper Traning

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Harshit Chauhan
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Swati Patil
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Excellent

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Avinash Rawat
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Pravin Kashid
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excellent teaching technique...one of the best course content...

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  1. Getting Started
    18m 54s

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

  1. Database Relationships
    11m 35s
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    6m 50s
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    3m 34s
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    4m 2s
  5. Difference between PK, UK and PK & FK
    6m 6s

  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

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  1. Filtering Data using Selection Command
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    26m 58s

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  7. SQL Functions for Data Analytics - 1
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  15. Assignment : SQL Date and Time
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  3. SQL Joins Practical Session 1
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  6. SQL Joins Practical Session 4
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  7. SQL Joins Practical Session 5
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    15m 5s
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  6. SQL Correlated Subqueries Part 4
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  11. Assignment : SQL SubQueries
    30m 7s

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  1. What are Views?
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    17m 47s
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    10m 17s

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

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    41m 2s
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    40m 2s
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    23m 32s
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    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
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  1. Interview Questions Part 1
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