Great Thanks,,
----- Original Message -----
From: "ViSolve DB Team" <[EMAIL PROTECTED]>
To: "Renish" <[EMAIL PROTECTED]>; <mysql@lists.mysql.com>
Sent: Monday, November 27, 2006 4:57 PM
Subject: Re: MySql doubt.
Hi Renish,
In case if you dont have the Item field in the Table B.
Try the following query
select item from a where item not in ( select
substring(price,1,instr(price,'-')-1) from b );
This will list out the the items which doesnt have price.
mysql> select * from a;
+--------+
| item |
+--------+
| book |
| pencil |
| table |
| chair |
+--------+
mysql> select * from b;
+-------------------+
| price |
+-------------------+
| pencil-11 dollars |
| book-12 dollars |
+-------------------+
mysql> select item from a where item not in ( select
substring(price,1,instr(price,'-')-1) from b );
+-------+
| item |
+-------+
| table |
| chair |
+-------+
Hope this helps.
Thanks,
ViSolve DB Team
----- Original Message -----
From: "Renish" <[EMAIL PROTECTED]>
To: "ViSolve DB Team" <[EMAIL PROTECTED]>; <mysql@lists.mysql.com>
Sent: Monday, November 27, 2006 12:48 PM
Subject: Re: MySql doubt.
Thanks if in case if we dont have the Item field in the Table B. wat to
do..I know the primary key to connect both the tables/
----- Original Message -----
From: ViSolve DB Team
To: Renish ; mysql@lists.mysql.com
Sent: Monday, November 27, 2006 12:48 PM
Subject: Re: MySql doubt.
Hi Renish,
Here's the answer for your query.
mysql> select * from a;
+--------+
| item |
+--------+
| book |
| pencil |
| table |
| chair |
+--------+
mysql> select * from b;
+--------+-----------+
| item | price |
+--------+-----------+
| pencil | 11 dollar |
| book | 12 dollar |
+--------+-----------+
You can use this query to get the items which doesnt have price.
mysql> select item from a where item not in ( select item from b);
+-------+
| item |
+-------+
| table |
| chair |
+-------+
Thanks,
ViSolve DB Team.
----- Original Message -----
From: "Renish" <[EMAIL PROTECTED]>
To: <mysql@lists.mysql.com>
Sent: Monday, November 27, 2006 8:45 AM
Subject: MySql doubt.
> Hi Guys,
>
> I have an easy doubt..
>
> Table A consist of field Item and Table B consist of field Price.
Table
A
> consists of Items which has price aswell the items which doesnt have
price.
> But In Table B,I have kept only the item which has price . Now, I want
to
> subtract the total items in Table A to the total items in Table B. so I
get
> the items which doesnt have price. I used union its not working.. can
any of
> u guys write the code for it,,,
>
> For example
>
> Table A
> Item Book
> Pencil
> Table
> Table B- which consists of Item with price
>
> Price -Book-11 dollar
> Pencil-2 dollar
>
> Please reply me asap. I hope it should be v. easy enough to tackle.
>
> Cheers,
> Renish koshy
>
>
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