Видео ютуба по тегу Update Column To Add A Default And Disallow Null

How to Update a MySQL Column with a Default Value and Disallow NULLs

SQL SERVER||How to change the column of table from NULL to NOT NULL?

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MySQL : Create Column Allow NULL but Default Value Set to NOT NULL

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Change Column Charset, Set NOT NULL, and Add a Default Value in MySQL

How to Alter Column from Null to Not Null in SQL Server

How to Alter a Column to Set a NOT NULL Constraint and Default Value in SQL

Adding Not Null to an Existing Column

SQL : Can I add a not null column without DEFAULT value

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insert a not null column to an existing table

MySQL: NOT NULL constraint

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SQL Basics - Table Constarints || NOT NULL And DEFAULT

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