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ALTER COLUMN... is only changing the metadata and should be finished in the matter of (milli)seconds? Do you know of any other method I could

  stackoverflow.com

Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML.

  www.w3schools.com

ALTER TABLE Foo ALTER COLUMN B CHAR(1) NULL; SELECT Operation, Context, ROUND(SUM([Log Record Length]) / 1024.0,1) AS [Log KB], COUNT(*) as [OperationCount] FROM sys.fn_dblog(NULL,NULL) WHERE AllocUnitName = 'dbo.Foo.ix' GROUP BY Operation, Context.

  dba.stackexchange.com

Бесплатный сервис Google позволяет мгновенно переводить слова, фразы и веб-страницы с английского на более чем 100 языков и обратно.

  translate.google.ru

From H2 SQL Grammar: ALTER TABLE TEST ALTER COLUMN NAME SET NOT NULL; So we can use: ALTER TABLE CHARACTERS ALTER PLAYER_ID SET NOT NULL;

  stackoverflow.com

ALTER COLUMN [create_date] SET DEFAULT getdate(). AshaRRichardson2nd.

  www.sqlservercentral.com

SQL HOME SQL Intro SQL Syntax SQL Select SQL Select Distinct SQL Where SQL And, Or, Not SQL Order By SQL Insert Into SQL Null Values SQL Update SQL Delete SQL Select Top SQL Min

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ALTER TABLE distributors ALTER COLUMN street SET NOT NULL; To remove a not-null constraint from a column

  www.postgresql.org

Add a NOT NULL constraint to a nullable column. The following statement creates a new table with a nullable column

  www.sqlservertutorial.net

Any attempt to set the column to NOT NULL while actual NULL data remains in the column will result in an error and no change will occur.

  chartio.com