i need some help with a SQL alter command. i am trying to add a field to my table, but when i do the field is filled with null in any existing rows. how can i just make it fill blank like the value ...
update student_info set Percentage = 89.56, Grade = 'Destinction' where RollNo=1; update student_info set Percentage = 69, Grade = 'First Class' where RollNo=2; update student_info set Percentage = 60 ...
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