Dimension table load - PLSQL question

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Dimension table load - PLSQL question

Dimension table load - PLSQL question

2005-09-29 - By Mercadante, Thomas F (LABOR)

Reply: 1 2 3 4 5 6 7 8 9 10 >>

Ronko,

Could you union all of the selects into one query and then use merge?

Merge (table)

Using

select descr1
from lkp_table1 where cd = p_cd1
union
select descr2
from lkp_table2 where cd = p_cd2 etc

etc.........

Would this work?

Tom

__ ____ ____ ____ ____ ____ ____

From: 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>;

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<body lang=EN-US link=blue vlink=blue>

<div class=Section1>

Ronko,<o:p></o:p>

<o:p> </o:p>

Could you union all of the selects into
one query and then use merge?<o:p></o:p>

<o:p> </o:p>

Merge (table)<o:p></o:p>

  Using<o:p></o:p>

<pre>      select descr1 <o:p></o:p></pre><pre>   
 from lkp_table1 where cd = p_cd1<o:p></o:p></pre><pre>   union<o:p
></o:p></pre><pre>   select
descr2 <o:p></o:p></pre><pre>   
 from lkp_table2 where cd = p_cd2 etc 
 
<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>etc……&
#8230;<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Would this work?<o:p></o:p></pre>

<o:p> </o:p>

Tom<o:p></o:p>

<o:p> </o:p>

<div>

<div class=MsoNormal align=center style='text-align:center'>

<hr size=2 width="100%" align=center tabindex=-1>

</div>

From:
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<o:p></o:p>

</div>

<o:p> </o:p>

<div>

Thanks for very helpful, no patronizing answer. If you've read more
carefully what the problem is<o:p></o:p>

</div>

<div>

you'd see that MERGE can't work because it works on one table upserting
another. <o:p></o:p>

</div>

<div>

I have one table being inserted from 6 tables. <o:p></o:p>

</div>

<div>

Thanks genius. 
 
 <o:p></o:p>

</div>

<div>


On 9/28/05, Paul
Drake <<a href="mailto:bdbafh@(protected)">bdbafh@(protected)</a>>
wrote: <o:p></o:p>

<div>

On 9/28/05, Ranko
Mosic <<a href="mailto:ranko.mosic@(protected)" target="_blank"
>ranko.mosic@(protected)
</a>> wrote: <o:p></o:p>

<div>

<blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in
0in 6.0pt;
margin-left:4.8pt;margin-right:0in'><pre>Hi, 
requirement: 
- input parameters are codes p_cd1, p_cd2, ... 
- for these codes I get descriptions ( select descr1 into v_descr1 from <o:p><
/o:p></pre><pre> 
lkp_table1 where cd = p_cd1; select descr2 into v_descr2 from lkp_table2 where
<o:p></o:p></pre><pre> 
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 ) ? <o:p></o:p></pre>
<pre> 
 
Regards, Ranko.  <o:p></o:p></pre>

<o:p> </o:p>

</blockquote>

</div>

 
 
<o:p></o:p>

</div>



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 <a href="http://google.com/"
target="_blank">google.com</a> + "I'm feeling lucky" produced this
for me. 
Perhaps you might get lucky too. 
 
Paul 
 
<a href="http://www.psoug.org/reference/merge.html" target="_blank">http://www
.psoug.org/reference/merge.html</a>
<o:p></o:p>

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<o:p> </o:p>
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<td width="75%" style='width:75.0%;padding:.75pt .75pt .75pt .75pt'>
MERGE <hint> INTO <table_name> 
USING <table_view_or_query> 
ON (<condition>) 
WHEN MATCHED THEN <update_clause> 
WHEN NOT MATCHED THEN <insert_clause>; <o:p></o:p>
</td>
<td style='border:none' width=0> </td>
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<o:p> </o:p>

</div>

<o:p> </o:p>

</div>

</body>

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