"when matched" clause is optional, so you should be fine without updates. As for returning PK, regular "INSERT" has "RETURNING" clause, but I don't see one for "insert" used withing "MERGE". File "enhancement request" with Oracle :)
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From: oracle-l-bounce@(protected) [mailto:oracle-l-bounce@(protected)] On Behalf Of Ranko Mosic Sent: Thursday, September 29, 2005 9:34 AM To: Igor Neyman Cc: Paul Drake; ORACLE-L Subject: Re: Dimension table load - PLSQL question
What about returning key if record exists ? There is no update happening.
Thanks, rm.
On 9/29/05, Igor Neyman <ineyman@(protected)> wrote:
Does it make a difference: 1 table or 6?
MERGE INTO t USING (SELECT(select descr1 from lkp_table1 where cd = p_cd1) AS v_descr1, select descr2 from lkp_table2 where cd = p_cd2) AS v_descr2 , .... etc. )from dual) c ON (t.descr1 = c.v_descr1 and t.descr2 = c.v_descr2 and ... etc) WHEN NOT MATCHED INSERT (t.descr1, t.descr2, ...) VALUES (c.v_descr1, c.v_descr2, ...)
Really, no need to react the way, you did...
Igor Neyman
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From: oracle-l-bounce@(protected) [mailto: oracle-l-bounce@(protected) <mailto:oracle-l-bounce@(protected)> ] On Behalf Of Ranko Mosic Sent: Thursday, September 29, 2005 8:45 AM To: Paul Drake Cc: ORACLE-L Subject: Re: Dimension table load - PLSQL question
Thanks for very helpful, no patronizing answer. If you've read more carefully what the problem is you'd see that MERGE can't work because it works on one table upserting another. I have one table being inserted from 6 tables. Thanks genius.
On 9/28/05, Paul Drake <bdbafh@(protected)> wrote:
On 9/28/05, Ranko Mosic <ranko.mosic@(protected) > wrote:
Hi, requirement: - input parameters are codes p_cd1, p_cd2, ... - for these codes I get descriptions ( select descr1 into v_descr1 from
lkp_table1 where cd = p_cd1; select descr2 into v_descr2 from lkp_table2 where
cd = p_cd2 etc ) - check if table t has records where t.descr1 = v_descr1 and t.descr2 = v_descr2 and on and on ....; - if row exists return primary key; - if not then insert.
What is the best way of doing it ( simplest ) ?
Regards, Ranko.
Ranko,
"Simplest way" is to solicit opinions without using a search engine or checking the documentation. Its also usually "simplest" to leverage the existing provided functionality, rather than writing your own routines, error handling, etc.
A search of "oracle 10.1 upsert" in google.com <http://google.com/> + "I'm feeling lucky" produced this for me. Perhaps you might get lucky too.
Paul
http://www.psoug.org/reference/merge.html
MERGE <hint> INTO <table_name> USING <table_view_or_query> ON (<condition>) WHEN MATCHED THEN <update_clause> WHEN NOT MATCHED THEN <insert_clause>;
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=us-ascii"> <META content="MSHTML 6.00.2900.2722" name=GENERATOR></HEAD> <BODY> <DIV dir=ltr align=left><SPAN class=302513813-29092005><FONT face=Arial color=#0000ff size=2>"when matched" clause is optional, so you should be fine without updates.</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=302513813-29092005><FONT face=Arial color=#0000ff size=2>As for returning PK, regular "INSERT" has "RETURNING" clause, but I don't see one for "insert" used withing "MERGE". File "enhancement request" with Oracle :)</FONT></SPAN></DIV><BR> <DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left> <HR tabIndex=-1> <FONT face=Tahoma size=2><B>From:</B> oracle-l-bounce@(protected) [mailto:oracle-l-bounce@(protected)] <B>On Behalf Of </B>Ranko Mosic<BR><B>Sent:</B> Thursday, September 29, 2005 9:34 AM<BR><B>To:</B> Igor Neyman<BR><B>Cc:</B> Paul Drake; ORACLE-L<BR><B>Subject:</B> Re: Dimension table load - PLSQL question<BR></FONT><BR></DIV> <DIV></DIV> <DIV>What about returning key if record exists ? There is no update happening. </DIV> <DIV> </DIV> <DIV>Thanks, rm.<BR><BR> </DIV> <DIV><SPAN class=gmail_quote>On 9/29/05, <B class=gmail_sendername>Igor Neyman</B> <<A href="mailto:ineyman@(protected)">ineyman@(protected)</A>> wrote:</SPAN> <BLOCKQUOTE class=gmail_quote style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"> <DIV dir=ltr align=left><SPAN><FONT face=Arial color=#0000ff size=2>Does it make a difference: 1 table or 6?</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV> <DIV dir=ltr align=left><SPAN><FONT face=Arial color=#0000ff size=2>MERGE INTO t</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN> <FONT face=Arial color=#0000ff size=2>USING (SELECT(<FONT color=#000000 size=3>select descr1 from lkp_table1 where cd = p_cd1) AS v_descr1, </FONT></FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN><FONT face=Arial color=#0000ff size=2><FONT color=#000000 size=3> select descr2 from lkp_table2 where cd = p_cd2) AS v_descr2 ,</FONT></FONT></SPAN> </DIV> <DIV dir=ltr align=left><SPAN> <FONT face=Arial> .... etc. )from dual) c</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN> <FONT face=Arial>ON (t.descr1 = c.v_descr1</FONT> <FONT face=Arial>and t.descr2 = c.v_descr2 and ... etc)</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN> WHEN NOT MATCHED INSERT (t.<FONT face=Arial>descr1</FONT>, t.<FONT face=Arial>descr2</FONT>, ...) </SPAN></DIV> <DIV dir=ltr align=left><SPAN> VALUES (<FONT face=Arial>c.v_descr1, c.v_descr2, ...)</FONT></SPAN></DIV> <DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV> <DIV><SPAN><FONT face=Arial color=#0000ff size=2>Really, no need to react the way, you did...</FONT></SPAN></DIV><SPAN class=sg> <DIV><SPAN><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV> <DIV><SPAN><FONT face=Arial color=#0000ff size=2>Igor Neyman</FONT></SPAN></DIV></SPAN> <DIV><SPAN class=e id=q_106a20a7e3aa3092_2> <DIV dir=ltr align=left><BR> </DIV> <DIV lang=en-us dir=ltr align=left> <HR> <FONT face=Tahoma size=2><B>From:</B> <A onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:oracle-l-bounce@(protected)" target=_blank>oracle-l-bounce@(protected)</A> [mailto:<A onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:oracle-l-bounce@(protected)" target=_blank> oracle-l-bounce@(protected)</A>] <B>On Behalf Of </B>Ranko Mosic<BR><B>Sent:</B> Thursday, September 29, 2005 8:45 AM<BR><B>To:</B> Paul Drake<BR><B>Cc:</B> ORACLE-L<BR><B>Subject:</B> Re: Dimension table load - PLSQL question <BR></FONT><BR> </DIV> <DIV></DIV> <DIV>Thanks for very helpful, no patronizing answer. If you've read more carefully what the problem is</DIV> <DIV>you'd see that MERGE can't work because it works on one table upserting another. </DIV> <DIV>I have one table being inserted from 6 tables. </DIV> <DIV>Thanks genius.<BR><BR> </DIV> <DIV><SPAN class=gmail_quote>On 9/28/05, <B class=gmail_sendername>Paul Drake</B> <<A onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:bdbafh@(protected)" target=_blank>bdbafh@(protected)</A>> wrote: </SPAN> <BLOCKQUOTE class=gmail_quote style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"> <DIV><SPAN>On 9/28/05, <B class=gmail_sendername>Ranko Mosic</B> <<A onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:ranko.mosic@(protected)" target=_blank>ranko.mosic@(protected) </A>> wrote: <DIV><SPAN class=gmail_quote></SPAN> <BLOCKQUOTE class=gmail_quote style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204 ,204,204) 1px solid"><PRE>Hi, <BR>requirement: <BR>- input parameters are codes p_cd1, p_cd2, ...<BR>- for these codes I get descriptions ( select descr1 into v_descr1 from <BR>lkp_table1 where cd = p_cd1; select descr2 into v_descr2 from lkp_table2 where <BR>cd = p_cd2 etc )<BR>- check if table t has records where t.descr1 = v _descr1<BR> and t.descr2 = v_descr2 and on and on ....; <BR>- if row exists return primary key; <BR>- if not then insert. <BR><BR>What is the best way of doing it ( simplest ) ? <BR><BR>Regards, Ranko. <BR></PRE><BR></BLOCKQUOTE></DIV><BR></SPAN></DIV >Ranko,<BR><BR>"Simplest way" is to solicit opinions without using a search engine or checking the documentation.<BR>Its also usually "simplest" to leverage the existing provided functionality, rather than writing your own routines, error handling, etc. <BR><BR>A search of "oracle 10.1 upsert" in <A onclick="return top.js.OpenExtLink(window,event,this)" href="http://google.com/" target=_blank>google.com</A> + "I'm feeling lucky " produced this for me. <BR>Perhaps you might get lucky too.<BR><BR>Paul<BR><BR><A onclick="return top.js.OpenExtLink(window,event,this)" href="http://www.psoug.org/reference/merge.html" target=_blank>http://www.psoug.org/reference/merge.html</A> <BR><BR> <TABLE width="90%" bgColor=#d8d8c4 border=1> <TBODY> <TR> <TD width="25%" rowSpan=2><BR></TD> <TD width="75%"><FONT face=Courier>MERGE <hint> INTO <table_name><BR>USING <table_view_or_query><BR>ON (<condition>)<BR>WHEN MATCHED THEN <update_clause><BR >WHEN NOT MATCHED THEN <insert_clause>; </FONT></TD></TR></TBODY></TABLE><BR></BLOCKQUOTE></DIV><BR></SPAN></DIV>< /BLOCKQUOTE></DIV><BR></BODY></HTML>
