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www.waraxe.us Forum Index -> MySql -> Search on several tables in SQL
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Search on several tables in SQL
PostPosted: Mon Sep 15, 2008 10:47 am Reply with quote
str0xo
Beginner
Beginner
 
Joined: Sep 15, 2008
Posts: 3




Good morning,

I have a problem and I am currently blocked the above, I hope any help , my problem is as follows:

I must write PL / SQL, requette SQL which makes a search (a search engine) on several tables (at least 8 => several joints) on fields that can be NULL, empty, full ... I do not recover as the list of id of the table (ROOT), this is how I have done, but it did not work
Quote:

SELECT tableRoot.Id
FROM table_root tableRoot,
table_fille1 fille1,
table_fille2 fille2,
table_fille3 fille3,
table_fille4 fille4,
...
WHERE
tableRoot.champRoot1 LIKE '%i__var1%' AND
tableRoot.champRoot2 = i__var2 AND
tableRoot.champRoot3 = i__var3 AND
fille1.champfille1_1 = i__var4 AND
fille1.champfille1_2 = i__var5 AND
fille2.champfille2 LIKE '%i__var6 %' AND
fille3.champfille3 LIKE '%i__var7 %' AND
fille4.champfille4_1 LIKE '%i__var8 %' AND
fille4.champfille4_2 LIKE '%i__var9 %' AND
...
-- Inner joins
fille1.id = tableRoot.fk_id_1 AND
fille2.id = tableRoot.fk_id_2 AND
fille3.id = tableRoot.fk_id_3 AND
fille4.id = tableRoot.fk_id_4
...;


thank's Cool
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PostPosted: Mon Sep 15, 2008 10:56 am Reply with quote
nuckel
Active user
Active user
 
Joined: Mar 25, 2008
Posts: 28




Good morning

can you give a little more detail?
what does not?
a small example can be reduced to a child table to show us what you really want and what you problem?

Thanks
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PostPosted: Mon Sep 15, 2008 11:02 am Reply with quote
str0xo
Beginner
Beginner
 
Joined: Sep 15, 2008
Posts: 3




hi Thank's for your response

Already the first question that arises: Is what I'm on the right path, is this the way forward? y'aurais no problems fall performance, if information does not exist at a table which has been doing a join, it will not affect the requette short, you see problems in this method? Rolling Eyes
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PostPosted: Mon Sep 15, 2008 11:08 am Reply with quote
nuckel
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Joined: Mar 25, 2008
Posts: 28




hi,

Already performance level will require that you use indexes

According without more information, it is difficult to say any more worry.
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PostPosted: Mon Sep 15, 2008 11:16 am Reply with quote
dzH
Regular user
Regular user
 
Joined: Mar 15, 2008
Posts: 17




nuckel wrote:
hi,

Already performance level will require that you use indexes

According without more information, it is difficult to say any more worry.



Indexes with like '%...', no interest!!!! Exclamation
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PostPosted: Fri Sep 19, 2008 12:34 pm Reply with quote
0xbadfaceX
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Joined: Aug 01, 2008
Posts: 12
Location: .bashrc$>




str0xo wrote:
hi Thank's for your response

Already the first question that arises: Is what I'm on the right path, is this the way forward? y'aurais no problems fall performance, if information does not exist at a table which has been doing a join, it will not affect the requette short, you see problems in this method? Rolling Eyes


look at : y'aurais . . . french???

if you want to send a translated text to someone or use it for your correspondence, explain that you always use a translator ... Laughing because there, you writing as the noobs i can not understand what you talked about because your language is very bad

and i think that "str0xo", "Nuckel", "dzH" are the same person by different nickname, the IP used. . Wink

see u . .

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Search on several tables in SQL
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