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 ALTER TABLE ALTER COLUMN

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Posted - 2001-03-21 : 18:24:39
garrett writes "The following appears in transact-Sql help but does not appear to work.

"
ALTER TABLE MyTable ALTER COLUMN NullCOl NVARCHAR(20) NOT NULL
"

I tried the following;

create table MYTABLE (COL1 char(50), COL2 char(50))
alter table MYTABLE alter column COL2 varchar(50)

and got the error;

Server: Msg 170, Level 15, State 1, Line 1
Line 1: Incorrect syntax near 'column'.

I want to alter a number of char(50) columns to varchar(50) and figured I could do it without having to drop and re-create the tables thus avoiding any integrity constraint issues along the way.

Rgds."
   

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