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oracle query - how to combine like and in clause

Posted on 2011-09-23
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Last Modified: 2012-05-12
I have to write a sql statement similar to in clause but I dont know the exact value of type so I want to do like clause but can I have more than 1 matching string?

for example type value is flash MB, stream MB, traffic MB

I want to write select * from stats where type like (%Fl%MB,%str%MB,Traf%MB)
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Question by:mahjag
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6 Comments
 
LVL 74

Expert Comment

by:sdstuber
ID: 36588474
you can't

do it as a multiple  or clauses

where type like '%Fl%MB'
or type like '%str%MB'
or type like 'Traf%MB'
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Accepted Solution

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sdstuber earned 125 total points
ID: 36588491
or use regular expressions but you still must list each


where regexp_like(type,'(Fl|str|Traf).*MB')
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LVL 15

Expert Comment

by:Devinder Singh Virdi
ID: 36588630
I believe you can also use XML to write dynamic where clause.
I am not good in XML, Stuber can help in that.
Something like :-

select
XMLTABLE( DBMS_XMLGEN.getxml('select * from TEMP_TABLE where &cond') )
from dual
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LVL 74

Expert Comment

by:sdstuber
ID: 36588691
sure, it would be possible, but that would be REALLY inefficient as you'd be constructing the same set of OR clauses or regexp clauses,  or worse... multiple queries, one for each condtion
then turning those results into xml, then you'll have to parse the xml to get your columns back.

so, yes, I "could" write that, but I won't because it's definitely not the right way to go
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Author Comment

by:mahjag
ID: 36589073
regexp_like(type,'(Fl|str|Traf).*MB')
will this capture before and after like %fl% - ?
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LVL 74

Expert Comment

by:sdstuber
ID: 36589115
it should,

easiest way to check is to try it
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