Question

I’m trying to make a detailed search with asp and SQL Server Full-text.

When a keyword submitted, I need to search in multiple tables. For example,

Table – Members

• member_id
• contact_name

Table – Education

• member_id
• school_name

My query;

select mem.member_id, mem.contact_name, edu.member_id, edu.school_name from Members mem FULL OUTER JOIN Education edu on edu.member_id=mem.member_id where CONTAINS (mem.contact_name, '""*"&keyword&"*""') or CONTAINS (edu.school_name, '""*"&keyword&"*""') order by mem.member_id desc;

This query works but it takes really long time to execute.

Image that the keyword is Phill; If mem.contact_name matches then list it, or if edu.school_name matches, list the ones whose education match the keyword.

I hope I could explain well 🙂 Sorry for my english though.

Answer 1

Couple of points I don’t understand that will be affecting your speed.

1. Do you really need a full outer join? That’s killing you. It looks like these tables are one to one. In that case can’t you make it an inner join?

2. Can’t you pass a column list to contains like so:

   SELECT mem.member_id,
        mem.contact_name,
        edu.member_id,
        edu.school_name
   FROM members mem
       INNER JOIN education edu ON edu.member_id = mem.member_id
   WHERE Contains((mem.contact_name,edu.school_name),'*keyword*')
   ORDER BY mem.member_id DESC 
   

Further info about contains.