Answer / gunturajesh

select a.empname empname,b.empname mgrname from emp a,emp b
where a.mgrid=b.empid

Answer / suresh babu

select t1.empname,t2.empname from emp t1,emp t2 where
t1.mgrid = t2.empid;

This query is self join,Which is display your requirement.

Answer / alok narayan

1.
select empname,(select empname from e1 b
where b.empid =a.mgrid) from e1 a;

2.
select a.empname empname,b.empname mgrname from e1 a,e1 b
where a.mgrid=b.empid order by a.empname ;

Answer / nanne saheb c

select e.empname,m.ename mgrname from emp e,emp m
where e.mgrid=m.empid;

Can we use out parameter in function?

4 Answers   Infosys,

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What is raw datatype in sql?

0 Answers  

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Name the operator which is used in the query for pattern matching?

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Hi, I am new in oracle(SQL), could anyone help me in writing a correct SQL. Below is the table structure. Table: Subsc Fields: 1. Sub_no (this field will hold values of subscriber nos, for e.g. S111111, S222222, S333333, S444444, etc.) 2. s_status (this field will hold values for different status of subscriber, for e.g. 'A', 'S', 'C', etc.) 3. cus_id (this field will hold values of bill nos for e.g. 11111111, 22222222, 33333333, 44444444, etc.) Table: Bill Fields: 1. Bill_no this field will hold values of bill nos for e.g. 11111111, 22222222, 33333333, 44444444, etc.) 2. b_status = (this field will hold values for different status of bill for e.g. 'O', 'C', 'S', etc.) Note: 1. The Sub_no is a Primary key of Subsc table. 2. The cus_id is a foreign in Subsc table (referred from Bill_no field of Bill table) 3. The Bill_no field is the Primary key of Bill table. Query A --> I wrote a query to select cus_id/Bill_no which is in status open (b_status = 'O') and having more than two active subscriber (i.e. S_status = 'A') in it ( i.e. more the two subscribers in same bill). select s.cus_id from subsc s where exists (select 1 from bill where bill_no = s.cus_id and b_status = 'O') and s_status = 'A' group by s.cus_id having count(sub_no) = 2 Problem : The above query will give the cus_id (or rather bill_no) which are in open status (b_status ='O) and which are having TWO ACTIVE Subscribers (s_status ='A') in it. However, this query will also lists the cus_id/bill_no which are having more than TWO subscribers in it (but only two subscriber will be in Active status (s_status = 'A') and the others will be in s_status = 'C' or s_status = 'S'. Help needed: I want to write a query which will fetch ONLY the cus_id/bill_no which are in open status (b_status ='O') and which are having ONLY TWO ACTIVE subscribers (s_status ='A') in it. B--> If I include the sub_no in the above query then NO row are returned. select s.cus_id, s.sub_no from subsc s where exists (select 1 from bill where bill_no = s.cus_id and b_status = 'O') and s_status = 'A' group by s.cus_id, s.sub_no having count(sub_no) = 2 Help needed: I want to modify the above query which will fetch ONLY the cus_id/bill_no which are in open status (b_status ='O') and which are having ONLY TWO ACTIVE subscribers (s_status ='A') in it ALONG with the sub_no. Thanks a lot in advance. Regards, Nitin

0 Answers  

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What is the reports view in oracle sql developer?

0 Answers  

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what is the cursor and use of cursor in pl/sql ?

4 Answers  

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What are types of indexes in sql?

0 Answers  

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Why do we use sql constraints? Which constraints we can use while creating database in sql?

0 Answers  

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Why is partition used in sql?

0 Answers  

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Why is a trigger used?

0 Answers  

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Explain foreign key in sql?

0 Answers  

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What is null in pl/sql?

0 Answers  

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