I have table that has student names in it.If I query on the
names my result set should return as 'VALUE NOT ENTERED'
for null entries.
select nvl(ename,'value not available') from student;
Is This Answer Correct ? | 9 Yes | 0 No |
can we use a having cluase in groupby clause. if there are 500 records i will give rownumber<250 then how many records does it retrieve. wt is the result of nvl2(null,notnull,null) if there are four tables without using cartesian how many joins can be there. in the sql subqueries wt is the parent ans1)select 2)update,3) delete 4)2&3
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I have table that has student names in it.If I query on the names my result set should return as 'VALUE NOT ENTERED' for null entries.
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