how do you restrict number of rows for a particular value
in a column.For example:there is a table called
fruits,having apples,bananas ,papayas.I dont want to have
more than 100 apples in that table ,so how can u restrict
number of rows for apple to hundred?
how to retrieve last tree records from table?
select *from emp where rownum > (select count(*)-3 from
i am using this query to get last three records from table
but its not giving any output, so please tell me what is the
error in this query.
how i do the database testing of online money transactions
between two parties (client and organization).
suppose our company makes a website for our client and give
a extra feature of online money transaction with there
clients then how i test this feature in database testing