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1) Create table student(student_id, student_name,address,year_of_joining,specialization). Note: the table is designed such that no two students have the same student_id. 2) What is the difference between

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1) Create table student(student_id, student_name,address,year_of_joining,specialization). Note: the table is designed such that no two students have the same student_id. 2) What is the difference between varchar2 and varchar data type. Which among these two is having more advantage

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