dtrgqjcd877528 2013-09-12 07:57
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如何从mysql搜索中的3个表中获取数据

i have 3 tables called company, customers,and comments.first i add company then the customers are added in customers table and finaly the customers add comments in comments table.

Here is the structure of company table:

id      company     type        address
1        abc       running      xyz
2        def       old          asd

Here is the structure of customers table:

cid company  customername  location
1     1       test           delhi
2     2       test1         noida

Here is the structure of comments table:

id  company     customer     comments
1         1          test       testcomments
2         2          test1       test1comments

now i want to search in cutomers table by customers name, company name and location so i have tried this but unable to get the value of comments on search how can i achieve it.

here is my search query for companyname and location:

$sql = mysql_query("Select * from customers AS cust INNER JOIN company AS comp ON cust.company = comp.id where cust.name like '%$term%' or cust.location like '%$term%' or comp.company like '%$term%'");
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  • dongxie45083 2013-09-12 08:08
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        SELECT * from customers AS cust INNER JOIN company AS comp ON cust.company=comp.id
        INNER JOIN comments AS com ON com.company = comp.id WHERE ....... 
    
        (where cust.name like '%$term%' or cust.location like '%$term%' or comp.company like '%$term%')
    

    Hope this helps. Replace WHERE filter as you want.

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