I want to increase the data type of varchar(100) to varchar(200)?without any loss of data in the existing table?HOW

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Use ALTER TABLE statement.

do you want to do that in sql or asp.net?

I want to increase the data type of varchar(100) to varchar(200)?without any loss of data in the existing table?HOW

ALTER TABLE table_name
MODIFY COLUMN col_name varchar(200)

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