How can I most efficiently connect AbInitio with QLikView and UC4?
I am familiar with the QVX option. Is
What ist the interface between these two systems.
(Description in German would use me better, but in English is also )
i'm not familiar with connecting with this systems. But if they have a proper api you can try code an qvsource (http://www.qvsource.com/) connector which will make the connection between the systems an qv.
Regards!
Stefan
Related
I have a MacBook Pro and want to learn more about sql, I understand I cannot run sql from a Mac, what should I install VMware, linux, windows 10? Can someone walk me through this
SQL is just domain specific language (primarily) for relational databases. What you need to decide is what RDBMS, which in turn implements SQL, you would like to use.[1] Standalone implementations like SQLite definitely run on the Mac (many of Apple's own applications like Mail use it as their database.) For the more complex client/server RDBMS systems (i.e. Oracle, SQL Server, MySQL/MariaDB, etc.) you will at least need to install client-side drivers (often in the form of ODBC, JDBC or native drivers) and then either connect to an existing[1] database or install your own database server.
Since it sounds like you're just getting started, I'd highly recommend starting with a standalone database such as SQLite which you should be able to get to by opening a terminal window and typing 'sqlite3' at the prompt. This will allow you to jump right in and focus on learning SQL itself rather than dealing with getting a full-blown client/server database server up and running. (move on to that later if you find it needed/interesting/useful to you)
[1] unless you need to use an existing database, at work for example, in which case you'll need to find out the various details about the server and database in order to connect to it. In this case, you'll need to find a point of contact (often a DBA) to provide this information.
How to read data, submit queries from vb application to a remote machine running sql server.
Please note: I have created a complete functional version of a stock control system with the database residing in the local machine. I just need the basic concept of interacting with remote databases that's all. Do we have to use sockets to read/send data ?
All you need to do is change your connection string to the remote db server and make sure that the server is actually listening. (Link assumes 2005 but 2k, 2k8+ config will be similar and easily Googled for...) You definitely DO NOT have to write special code for this.
Check out http://connectionstrings.com/ for a handy reference for the different types of connection strings in different situations.
Are we talk about .NET version of VB or old fashioned VB 6?
In .NET version of VB (VB.NET) you can use OLEDB Data adapter, ODBC Data Adapter or native .NET Data adapter depends on your needs.
See MSDN documentation enter link description here
In VB6 version, you can use ADO, OLEDB or ODBC. See documentation here: http://msdn.microsoft.com/en-us/library/aa968814(v=vs.85).aspx
I don;t recommendate to connect your application via socket by yourself because this is really bloody coding.
I have an SQL database and want to connect to it using VBA in order to support some legacy functionality. I'm using an ADODB connection and need to know what my database DSN is. How can I find this?
I'm using SQL Server 2008, thanks! :D
A DSN (data source name) is an indirect way of referring to the database. You have to create them manually (or semi-automatically using a wizard of some kind). Go to ControlPanel->AdministrativeTools->DataSources (ODBC) to see if one has already been defined for the database to which you want to connect.
But I think you might mean "connection string", not "DSN". There are many, many ways to tell ADODB how to find and connect to your database (DSNs are just one of those), but you always need a connection string.
I have often turned to ConnectionStrings.com to help me through the maze of similar-but-not-identical options.
There may not be a DSN. DSNs are not created automatically.
I'm not sure you really mean DSN, as a DSN is an ODBC concept. Still, look in Administrative Tools->Data Sources (ODBC).
I have a SQL Server 2008 database in 3NF.
I must check if the db can support many concurent users.
Which is the best method ?
Is there any free tool to do this ?
Thank you very much.
SQLQueryStress - http://www.datamanipulation.net/SQLQueryStress/documentation/documentation.asp
and
SQLStress - http://www.sqlstress.com/Overview.aspx
Both look like a good fit for what you want to do.
The database design and the queries you run against it are vital; no generic answer can be reliable.
I recommend you start with the MS SQL community's benchmark tools.
Since uses are hopefully not accessing the database directly you must have some front end, that is where I would perform my load test. You can use TFS to do load tests as well as Selenium.
Assuming that you have created some kind of web front end that queries your database, then the excellent open source tool Sahi would really help you out. The test toolkit allows you to simulate multiple users using your website - and therefore your database.
I am confused about the connection string format of ADO.Net when connect to a non-default instance of SQL Cluster. I did search but find various samples, could anyone let me know what is the correct format please (if I know the virtual server name and instance name)? I am using trusted connection.
thanks in advance,
George
See http://www.connectionstrings.com/ - great site for making DB connection strings.
ServerName\InstanceName ? Use double \ when handling strings in C#
The following web site gives many different connection strings for you. The following should work I believe:
http://www.connectionstrings.com/sql-server-2005#1
This is also a duplicate of connection string to a SQL Server cluster
If you can connect to it using visual studio the connection properties should give you the connectionstring vs.net uses. Using that connectionstring might help.
If you want a quick & easy way to try different connection strings, I suggest DatabaseTester (disclaimer - I wrote it). It's free and a very easy way to test. And I agree with the other posts above, for figuring out connections strings ConnectionStrings.com is your best friend.