ALTER COMMAND IN SQL || DDL COMMANDS || SQL COMMANDS || ALTER DATABASE || MYSQL || DBMS

[@jeevithaloknath9787]

Sir,You really explain well in a simple manner. I refer your videos even for the Python Programs and learnt a lot.

[@chevalasudharani3637]

Hi sir, your explanation is good. While I am using not null constraint iam getting error invalid use of null value. Can you please suggest me.

[@sukumarkothapally7796]

Sir please explain select(DQL) with all the conditions and clauses

[@Mahboob_Creative_Arts]

Hello Sir,
Can we update a column name in a table on top of data type instead of removing and adding it again ? For example, I have column name as "EmployID" hence I want to change it "Employee_ID".

[@karthick2523]

ya it 's working

[@hasanmougharbel8030]

Hey my friend, blessed to discover your channel.
I have only a simple enquiry as a newbie sql learner.
What is the main difference between alter and update in terms of their application in sql?
Thanks for taking time on this..

[@sundeepsaradhi]

Hi
ALTER is used to change structure of database
Update is used to change the data in table

[@hasanmougharbel8030]

@@sundeepsaradhi What do you mean exactly by structure of database? Thanks

[@hemandh6665]

how to delete check and default constraints?

[@fog2640]

finished watching

[@sujin8380]

Sir, what is schema