Execute Dynamic SQL with sp_executesql

DECLARE @nvSQLString NVARCHAR(4000)

SET @nvSQLString = 'SELECT * FROM tbTable01 WITH (NOLOCK)';
SET @nvSQLString = @nvSQLString + ' WHERE col > 1')';

EXECUTE sp_executesql @nvSQLString

Sources:

https://docs.microsoft.com/en-us/sql/relational-databases/system-stored-procedures/sp-executesql-transact-sql?view=sql-server-ver15