Explain Transaction Control Statements used to manage the changes made by DML statements

select * from student;
STUID STUNAME GENDER ADDRESS
2 Dhruv M Sec-15 Noida
3 Pooja G IndiraPuram
4 akhil M R K Puram
5 anand M Rithala
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commit;
Statement processed.
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delete from student;
4 row(s) deleted.
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select * from student;
no data found
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Rollback
Statement processed.
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select * from student;
STUID STUNAME GENDER ADDRESS
2 Dhruv M Sec-15 Noida
3 Pooja G IndiraPuram
4 akhil M R K Puram
5 anand M Rithala
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