I need to find customer's names that repeat / occur more than once in
the same table. I have treid many options and I have tried comparing
the column to itself but Oracle gives me an error.
SELECT a.customer_name , b.customer_name
FROM dtb_customer a, dtb_customer b
where a.dtb_customer = b.dtb_customer
and b.customer > 1
Any help would be appreciated.
Thanks in advance.
6  58195 
On 11 Feb 2004, nb****@yahoo.co m wrote: I need to find customer's names that repeat / occur more than
once in the same table. I have treid many options and I have
tried comparing the column to itself but Oracle gives me an
error.
select cust_nm, count(*)
from table
group cust_nm
having count(*) > 1;
--
Galen Boyer nb****@yahoo.co m (Nimesh) wrote in message news:<ec******* *************** ****@posting.go ogle.com>... I need to find customer's names that repeat / occur more than once in
the same table. I have treid many options and I have tried comparing
the column to itself but Oracle gives me an error.
SELECT a.customer_name , b.customer_name
FROM dtb_customer a, dtb_customer b
where a.dtb_customer = b.dtb_customer
and b.customer > 1
Any help would be appreciated.
Thanks in advance.
Can you explain your SQL? How is it counting names??? You need an
aggregate query to accomplish this...
SELECT customer_name, count(*) cnt
from dtb_customer
group by customer_name
this will give you the count per customer_name
to accomplish your goal...either wrap the sql like this...
select *
from
(
SELECT customer_name, count(*) cnt
from dtb_customer
group by customer_name
)
where cnt > 1
or get the same exact effect with the HAVING CLAUSE...
SELECT customer_name, count(*) cnt
from dtb_customer
group by customer_name
having count(*) > 1
Dave nb****@yahoo.co m (Nimesh) wrote in message news:<ec******* *************** ****@posting.go ogle.com>... I need to find customer's names that repeat / occur more than once in
the same table. I have treid many options and I have tried comparing
the column to itself but Oracle gives me an error.
SELECT a.customer_name , b.customer_name
FROM dtb_customer a, dtb_customer b
where a.dtb_customer = b.dtb_customer
and b.customer > 1
Any help would be appreciated.
Thanks in advance.
select a.customer_name , count(*)
from dtb_customer a
group by a.customer_name
having count(*) > 1
That's all!
Sybrand Bakker
Senior Oracle DBA nb****@yahoo.co m (Nimesh) wrote in message news:<ec******* *************** ****@posting.go ogle.com>... I need to find customer's names that repeat / occur more than once in
the same table. I have treid many options and I have tried comparing
the column to itself but Oracle gives me an error.
SELECT a.customer_name , b.customer_name
FROM dtb_customer a, dtb_customer b
where a.dtb_customer = b.dtb_customer
and b.customer > 1
Any help would be appreciated.
Thanks in advance.
Standard way of discovering duplicates would be like this :
select a.customer_name , count(*)
from dtb_customer a
group by a.customer_name
having count(*) > 1
/KiBeHa nb****@yahoo.co m (Nimesh) wrote in message news:<ec******* *************** ****@posting.go ogle.com>... I need to find customer's names that repeat / occur more than once in
the same table. I have treid many options and I have tried comparing
the column to itself but Oracle gives me an error.
SELECT a.customer_name , b.customer_name
FROM dtb_customer a, dtb_customer b
where a.dtb_customer = b.dtb_customer
and b.customer > 1
Any help would be appreciated.
Thanks in advance.
Use COUNT(*), GROUP BY and HAVING.
SELECT customer_name, Count(*) num_occurances
FROM dtb_customer
group by customer_name
having count(*) > 1
will do it.. nb****@yahoo.co m (Nimesh) wrote in message news:<ec******* *************** ****@posting.go ogle.com>... I need to find customer's names that repeat / occur more than once in
the same table. I have treid many options and I have tried comparing
the column to itself but Oracle gives me an error.
SELECT a.customer_name , b.customer_name
FROM dtb_customer a, dtb_customer b
where a.dtb_customer = b.dtb_customer
and b.customer > 1
Any help would be appreciated.
Thanks in advance. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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I need to find customer's names that repeat / occur more than once in
the same table. I have treid many options and I have tried comparing
the column to itself but Oracle gives me an error.
SELECT a.customer_name, b.customer_name
FROM dtb_customer a, dtb_customer b
where a.dtb_customer = b.dtb_customer
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