DA SEARCH Query

Hello,

I need some help with my search result page.

I created my searchform: suchen.php

Instruments and genre are created from DA manage related tables.

Will say, I store all the Instruments and Genres a Member wants in an extra Table profileInstruments & profileGenre.

Then I got 2 tables for the instruments and genre themself.

And I got a table for the profile itself.

So, if someone searches a GUITARIST that plays ROCK and lives in COLOGNE(city)

How do I filter that.

SELECT profile.profileID, profile.nickname
FROM profile, instruments, genre
WHERE ????

I dont know how to start.


Am I right, that I need a final recordset, that shows all possibilities of my results? I created a recordset, that contains only nickname, and postcode. but in the wizard all fields of the table are shown.

Or is this recordset only to show the results?

in the profile table should be linked to the instrument and genre tables using a foreign key

on the search page, you would create select list to chose the instrument or genre.

the select list will show the name, but set it to pass the ID as the value.

then you can search on the foreign key ID value in the profile page.


see the w3sachools page for more details on related tables in SQL:
sql_join.asp

Hi Jason,

I cant store the InstrumentID and GenreID in the Profile table, cause I stored all instruments and genres in an extra table, so no instrument or genre is double.

What I did is...

I created an table called profileInstruments and profileGenre that stores only the foreignkeys (InstrumentID / ProfileID and GenreID / ProfileID)

I my searchform I created 2 lists, from profileInstruments and profileGenre, so I got all instruments and genres that are available.

No my problem is, to unit all there 5 tables to get a search result with DA-Search.

Genre, Instrument, Profile, ProfileInstruments and ProfileGenre

I dont know how to crate, that recordset, so I can make a search.

Denis

navicat is a good tool for generating complex join queries using visual GUI:
mysql_overview.html

I dont understand that.

so, I will put all information into one table so i can use the DA search.

thanks so far,
denis

no, you need to start with a complex joined query recordset that pulls the data from all of the related tables.

the navicat tool i linked to is a good tool fro creating the recordset for you if you do not wish to learn the SQL syntax for creating such a query.

thanks jason,

i downloaded it and tried the query builder. i dont get any result i need to.

I made a recordset so far. the Search runs like I want but could be better:

search.php

SELECT DISTINCT
`profile`.profileID,
`profile`.`name`
FROM
`profile`
INNER JOIN profilegenre ON `profile`.profileID = profilegenre.profileID
INNER JOIN profileinstruments ON `profile`.profileID = profileinstruments.profileID

I want to add, the INSTRUMENTS and GENRE to the result.

But when I try my way, then I get double results on every instrument and every genre :-(

SELECT
`profile`.profileID,
`profile`.`name`,
`profile`.plz,
`profile`.city,
genre.genre,
instruments.instrument
FROM
`profile`
INNER JOIN profilegenre ON `profile`.profileID = profilegenre.profileID
INNER JOIN profileinstruments ON `profile`.profileID = profileinstruments.profileID
INNER JOIN genre ON genre.genreID = profilegenre.genreID
INNER JOIN instruments ON instruments.instrumentID = profileinstruments.instrumentID

is there a way to put all instruments and all genres into one field, or something?

Jason,

I made it :-)

SELECT DISTINCT
`profile`.profileID,
`profile`.`name`,
`profile`.plz,
`profile`.city,
GROUP_CONCAT(DISTINCT genre.genre) AS genre,
GROUP_CONCAT(DISTINCT instrument.instrument) AS instrument
FROM
`profile`
INNER JOIN profilegenre ON `profile`.profileID = profilegenre.profileID
INNER JOIN profileinstruments ON `profile`.profileID = profileinstruments.profileID
INNER JOIN genre ON genre.genreID = profilegenre.genreID
INNER JOIN instrument ON instrument.instrumentID = profileinstruments.instrumentID
GROUP BY
`profile`.profileID
ORDER BY
`profile`.plz ASC

Cause I got the instrumentID field double, I needed to customize the DA search wizard into profileinstrument.instrumentID :-)

I am so happy that it works!

thanks for your help!

denis

ps. maybe in DA update it would be cool that it automatic choose the right table :-)

ok, glad to hear you got it working.

Hi Jason,

what does DA search, the field itself or the field after the recordset?

cause one of my fields ist just a date 1972-04-13 but the recordset transforms it to the age in years. 38

(YEAR(CURRENT_DATE) - YEAR(profile.age)) - (RIGHT(CURRENT_DATE,5) < RIGHT(profile.age,5)) AS age

will it compare to 38 or DATE?

Denis