Answer / m.m

1 will be printed as many times as the number of rows in
emp table
followed by 2 begin printed as many times as the number of
rows in emp table
OP:
1
----------
1
1
1
1
1
1
1
1
1
1
1

1
----------
1
1
1
2
2
2
2
2
2
2
2

1
----------
2
2
2
2
2
2

28 rows selected.

Answer / ankush

it returns the number 1 same number columns as well as
union with the value 2 again with the same number of
columns the table emp have.

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