view_seq_syn - Lab Exercise
view_seq_syn - Lab Exercise
Practice questions |
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1. create a view whose deptno=10 and 20. |
2. create a view without a table then create a table and compile the view. |
3. create the readonly view for the emp table deptno=30. |
4. create a table from scott. emp3 from emp add a column sno, if data is insert into table the sno column should be increment by 1. |