I was trying this in sqlplus but as explained in first email ,actual query will be in xml file that the asp.ent code will read through c++ and shows the result of the query on the screen. ________________________________ From: Ganesh Raja [mailto:ganesh.raja@xxxxxxxxx] Sent: Friday, September 15, 2006 11:13 AM To: Harvinder Singh Cc: ORACLE-L Subject: Re: SELECT statement issue Where are you writting this ... On 9/15/06, Harvinder Singh <Harvinder.Singh@xxxxxxxxxxxxx> wrote: Ganesh, Thanks a lot, when I am trying to test this I can see the following behavior: SQL> select decode(id_acc,123,(select count(*) from tab1),124,(select count (*) from tab1_mapper)) from tab1 where id_acc=123; DECODE(ID_ACC,123,(SELECTCOUNT ------------------------------ 64 SQL> select decode(id_acc,123,(select * from tab1),124,(select count(*) fro m tab1_mapper)) from tab1 where id_acc=123; select decode(id_acc,123,(select * from tab1),124,(select * from tab1_mapper)) from tab1 where id_acc=123 * ERROR at line 1: ORA-00913: too many values SQL> select decode(id_acc,123,(select id_acc from tab1),124,(select count(* ) from tab1_mapper)) from tab1 where id_acc=123; select decode(id_acc,123,(select id_acc from tab1),124,(select id_acc from tab1_mapper)) from tab1 where id_acc=123 * ERROR at line 1: ORA-01427: single-row subquery returns more than one row It looks like it allows count(*) type of return from select but out actual code is returing rows of data and oracle is throwing : too many values. Let me know if there is workaround. Thanks --Harvinder ________________________________ From: Ganesh Raja [mailto: ganesh.raja@xxxxxxxxx] Sent: Thursday, September 14, 2006 4:26 PM To: Harvinder Singh Cc: ORACLE-L Subject: Re: SELECT statement issue Select Decode (values, 'XYZ', (Select ....), 'ABC', (Select .....), (Select ...)) <<IF> <Equalto> <elseif> <else> HTH - Ganesh On 9/14/06, Harvinder Singh < Harvinder.Singh@xxxxxxxxxxxxx <mailto:Harvinder.Singh@xxxxxxxxxxxxx> > wrote: Hi, We are porting the application from SQL Server to Oracle, we have lot of queries in the xml file and the application read the queries from the file. In some scenarios we have following construct in sql server where we are checking the value and depending upon it running one of the 2 sql's: If (values = 'xyz') Begin Select.... End Else begin Select..... End Oracle somehow don't like this construct and giving error : ORA-00900: invalid SQL statement What is the way to port this to oracle? Thanks --Harvinder -- ----------------------------------------------------------- http://iyertalks.blogspot.com/ -- ----------------------------------------------------------- http://iyertalks.blogspot.com/