sp_RENAME 'TableName.[oldcolumnname]' , '[Newcolumnname]', 'COLUMN'
For example if my table name is class and having column fees and i want to change column name fees to NewFees then the script will be like
sp_RENAME 'dbo.class.fees', 'NewFees' , 'COLUMN'
Change Column Name in Sqlserver
This Blog will give you information about how to change column name in Sqlserver using query.

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