topic Re: How can I to join two tables from two servers? in QlikView

How can I to join two tables from two servers?

Fri, 16 Nov 2012 09:23:09 GMT

In MySQL, I have two different databases -- let's call them A and B.

Database A resides on server server1, while database B resides on server server2.

Is it possible to perform a SQL JOIN between a table that is in database A, to a table that is in database B?

Re: How can I to join two tables from two servers?

Fri, 16 Nov 2012 09:30:39 GMT

Dear

first establish the connectivity from Server1 and read the table A.

then establish the connectivity from server 2 and read the table B.

and apply the join.

like,

Connectivity server1;

TableA;

load

..........

table A from server1

;

connectivity from server2:

Left join(TableA)

load

......

table 2 from server 2;

Thanks,

Mukram.

Re: How can I to join two tables from two servers?

Fri, 16 Nov 2012 09:51:50 GMT

Hi Mukram,

How can I make the following join "and transactions_backup.ad_id = offers.ad_id" in Tab2 and "and transactions_backup.campaign_id = campaigns.id" in Tab3? The fields names are different in case 2.

Regards,

Paula

---

ODBC CONNECT TO [MySQL Servidor];

Tab1:

SELECT *

transactions_backup.transaction_at,

year(transactions_backup.transaction_at),

month(transactions_backup.transaction_at),

transactions_backup.event_type_id,

transactions_backup.ad_id,

transactions_backup.campaign_id id

FROM transactions_backup

where transactions_backup.event_type_id in (3, 13, 18)

and transactions_backup.ad_id = offers.ad_id

ODBC CONNECT TO MySQL *******;

Tab2:

JOIN (Tab1) SELECT

offers.property,

offers.provider,

offers.price

FROM offers;

and transactions_backup.ad_id = offers.ad_id

Tab3:

JOIN (Tab1) SELECT

FROM campaigns

WHERE campaigns.campaign_type = 4;

and transactions.campaign_id = campaigns.id

Re: How can I to join two tables from two servers?

jagan — Fri, 16 Nov 2012 10:17:09 GMT

Hi,

Try this script

ODBC CONNECT TO [MySQL Servidor];

Tab1:

SELECT *

transactions_backup.transaction_at,

year(transactions_backup.transaction_at),

month(transactions_backup.transaction_at),

transactions_backup.event_type_id,

transactions_backup.ad_id AS AdID,

transactions_backup.campaign_id AS CampaignID

FROM transactions_backup

where transactions_backup.event_type_id in (3, 13, 18)

and transactions_backup.ad_id = offers.ad_id

ODBC CONNECT TO MySQL *******;

Tab2:

JOIN (Tab1) SELECT

offers.ad_id AS AdID

offers.property,

offers.provider,

offers.price

FROM offers;

Tab3:

JOIN (Tab1) SELECT

campaigns.id as CampaignID,

FROM campaigns

WHERE campaigns.campaign_type = 4;

Hope this helps you.

Regards,

Jagan.