Answer / korimantu

delete from table name where rowid not in(select max(rowid)
from group by last_name);

or

delete from table name where rowid>(select min(rowid) from
where a.last_name=b.last_name);

Answer / vyshak

delete from table where rowid not in (select max(rowid) from
table group by all column names);

or

delete (dense_rank() over(partition by all column names))dn
from table where dn>2;

Answer / guest

select distinct

Is sql injection illegal?

0 Answers  

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Hi how to import oracle sequence in Informatica? Please write stored procedure code that will import oracle sequence in Informatica SP transformation as per below scenario Oracle table product list Pro_id, pro_name 101, LED Lights. 102, 20watt CFL Lights. 103, 30 watt CFL lights Now a new flat file with new product list needs to be added to oracle table product list with oracle sequence. flat file product Prono,pro_name, 1, 20 watt tube light 2, 30 watt tube light & target should be like 101, LED Lights. 102, 20watt CFL Lights. 103, 30 watt CFL lights. 104, 20 watt tube light 105, 30 watt tube light thks reg suvarna joshi suvarnaatsuvarna@rediffmail.com

0 Answers   TCS,

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What is $$ in sql?

0 Answers  

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Mention what problem one might face while writing log information to a data-base table in pl/sql?

0 Answers  

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When do we create bitmap indexes

2 Answers   CTS,

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What is difference between sql and oracle?

0 Answers  

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In testing where do we use sql language and how it helps in testing?

2 Answers  

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What is dba in sql? : SQL DBA

0 Answers  

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i have a table with column sno with 30 records. i want to update this column by item by item in asp.net. i wantto enter new values into that from 1 to 30 how is it possible with backend c#

1 Answers  

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Can a foreign key be null?

0 Answers  

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What are advantages of Stored Procedures?

3 Answers   Satyam,

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In a PL/SQL block,which loop type should be used in a performance point of view & Why (as both loops can do the same task) 1) open - Fetch loop 2) for loop

4 Answers   JDA,

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