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Thread: bolehkah 1 system atau web mempunyai 3 database??

  1. #1
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    bolehkah 1 system atau web mempunyai 3 database??

    a) adakah ini yg dinamakan 3 database? database name: 1) customer_db 2) appointment_db 3) loan_db atau b) database name: laon_db..dlm database ni ada 3 table iaitu: 1) customer_tbl 2) appointment_tbl 3) loan_tbl yg mana 1 yg betul?? (a) atau (b)??
    Last edited by yunaqeem; 15-06-12 at 03:43 PM.

  2. #2
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    Akirien's Avatar
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    Assalammualaikum...

    Sila specific kan soalan anda..

    1. Ya, satu sistem boleh mempunyai lebih dari satu database.

    2. a). Ya, itu 3 database.
    b). laon_db tu name database, dlm database ni ade table seperti yg dinyatakan. (so ini cuma satu database yg ade 3 table)

    Secara logik, dua dua betul.

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  4. #3
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    Waalaikumussalam...trime ksh diatas bantuan yg telah diberi..sy nk tanya soalan..adakah data store n database sama atau pn berbeza? soalan 2:
    <?php
    $no=1;
    $query = "select * from customer_db as a left join laon_db as b on a.icnumber=b.icnumber ";
    $result = mysql_query($query);
    while($row = mysql_fetch_array($result))

    adakah coding yg berwarna merah boleh dilakukan atau ada coding lain yang lebih betul lagi??
    sy sudah cuba buat tp xmenjadi..sbnrnya sy nk join 3 database iaitu customer_db, appointment_db and loan_db..bantuan yg diberi amat dihargai

  5. #4
    Member pianPiun's Avatar
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    awk andaikan kedua ne : customer_db as a, join laon_db as b sbg database? kalo kedua2 tu db...query tu da salah..

    syntax utk query : "SELECT <field list> FROM <database name>.<user>.<table> as <v_name>, left join <database name>.<user>.<table> as <v_name2> on <v_name2>.<column2> = <v_name>.<column>"

    sy xsure pasal merge trus semua data dlm database tu tp...syntax ne utk join 2 table dr database yg berbeza....

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  7. #5
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    untuk JOIN table kena tengok apa yang ko nak...
    ada beberapa jenis join table ni.. huhu

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  9. #6
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    kalo nk panggl sume data dr 3 table kne wt cm ne?? sy gne yg ni :
    <?php
    include("config.php");
    extract($_GET);

    $query =
    "select * from customer as a left outer join appointment as b on a.icnumber = b.icnumber left outer join loan as c on b.icnumber = c.number where a.id='$xid'";
    $result = mysql_query($query);
    $row = mysql_fetch_array($result);

    ?>

  10. #7
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    Kalau nak semua data dari 3 table kenapa tak full join je?

  11. #8
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    Server sponsored by SyokHost.Com

    Server sponsored by SyokHost.Com

    Server sponsored by SyokHost.Com

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    jgn main create db jek...skang paling penting foreign key and primary key...
    create db untuk jangka masa panjang and boleh simpan banyak data...
    sekadar nasihat

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