topic Re: Multiple Connection Strings in one QVS file in QlikView

Multiple Connection Strings in one QVS file

Anonymous — Wed, 25 Nov 2020 16:16:04 GMT

Hi,

I have multiple connection strings that are being used. Can I create QVS file with all the connection strings in that one single file? If yes, how?

Re: Multiple Connection Strings in one QVS file

Anonymous — Mon, 20 Jun 2016 14:43:36 GMT

you can use as many Connection strings as you like

But: you must extract the data from each database you want to connect to before the next Connection string

occurs

connect to ...

select * from tablea

select * from tableb

connect to ...

select *from tablec

select * from tabled

other possibility: if you want only 1 qvs with only Connection strings you may work with variables and use a Sub

Sub connect (DBA)

if (DBA=1, connect to ..)

if (DBA)2, connect to ...)

in your main script you call the Sub and then extract the data

call connect(1)

select * from tablea

does this helps you?

Re: Multiple Connection Strings in one QVS file

Anonymous — Mon, 20 Jun 2016 14:53:17 GMT

If i have only one connection String, I can do it as :

SCRIPT:

$(Must_Include=$(Config)\ConnectionString.qvs) ;

TableA:

LOAD

....

...

And in the ConnectionString.qvs file, define the Connection String.

How will I do it if I have multiple connection strings and I want all those connection strings to be stored in a single .qvs file instead of one qvs file for each connection string?

Re: Multiple Connection Strings in one QVS file

santiago_respane — Mon, 20 Jun 2016 15:00:12 GMT

Hi,

you can have as many connection strings as you like, i use something like this:

In your QVS:

//First conn

set v.DBConnString1='Provider=OraOLEDB.Oracle.1;Persist Security Info=True;User ID=myUser;Data Source=mySource1;UseSessionFormat = 1;Extended Properties=""';

set v.DBConnString1Pass='RVEePSJMDSDFSDFDdeFRFNJE';

//second conn

set v.DBConnString2='Provider=OraOLEDB.Oracle.1;Persist Security Info=True;User ID=myUser;Data Source=mySource2;UseSessionFormat = 1;Extended Properties=""';

set v.DBConnString2Pass='RVEePRTSDFGSDF3453NJE';

And in your app:

//Connect to first db

OLEDB CONNECT TO [$(v.DBConnString1)] (XPassword is $(v.DBConnString1Pass));

//Do some stuff

DISCONNECT;

//Connect to second db

OLEDB CONNECT TO [$(v.DBConnString2)] (XPassword is $(v.DBConnString2Pass));

//Do some stuff;

DISCONNECT;

Let me know if this helps.

Kind regards,

Re: Multiple Connection Strings in one QVS file

Anonymous — Mon, 20 Jun 2016 15:01:13 GMT

I would use my second choice:

you define your Connection strings in a single qvs by defining a Sub

Sub connect(DBA)

if (DBA=1, connect to Database1)

if (DBA=2, connect to Database2

end Sub

you call the include like you wrote

$(Must_Include=$(Config)\ConnectionString.qvs) ;

But before extracting data you define the datasource using a parameter

CALL CONNECT(1)

TableA:

load

does this clarifys your question?

Re: Multiple Connection Strings in one QVS file

syukyo_zhu — Mon, 20 Jun 2016 15:02:45 GMT

Hi,

Yes you can

in your qvs, your define these connexions

v_DB_SALESFORCE

= 'CUSTOM CONNECT TO ';

v_DB_Oracle =' ';

//Then in your application Qvw

//you can call your conexion like this

$(v_DB_SALESFORCE);

//At the end of your connexion

DISCONNECT;

//then you can an other connexion

$(v_DB_Oracle);

DISCONNECT;

Re: Multiple Connection Strings in one QVS file

Anonymous — Mon, 20 Jun 2016 15:31:07 GMT

I will try one and if it doesn't work, will switch to the next one. Will let you know guys. Thanks

Re: Multiple Connection Strings in one QVS file

Anonymous — Mon, 20 Jun 2016 16:13:45 GMT

The one provided by xia worked. I had issues with Santiago's solution. Anyway, thanks guys