How to change datatype using replace function in SQL Server - 


select     replace(street, char(10), '') streettable

have explored syntax of replace function ...but how piece of code work?

the sample code doesn't change datatype. char(10) line feed , code replaces line feeds empty symbol in street column(not in table, on fly present. data in table stays untouched).

if want change datatype should alter column. like:

alter table streettable alter column street varchar(777) null

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