KNIME database connection

Recently, I was told by my tutor to do something about data mining, so I learned how to mine data. First of all, there is a tool problem. For anyone who knows nothing about it, selecting a tool is really a problem. Think about it and find an open source tool. Of course, there are a lot of articles in this area, and there are also a lot of open-source data mining tools. After half a day, I finally selected KNIME. However

Recently, I was told by my tutor to do something about data mining, so I learned how to mine data. First of all, there is a tool problem. For anyone who knows nothing about it, selecting a tool is really a problem. Think about it and find an open source tool. Of course, there are a lot of articles in this area, and there are also a lot of open-source data mining tools. After half a day, I finally selected KNIME. However

Recently, I was told by my tutor to do something about data mining, so I learned how to mine data. First of all, there is a tool problem. For anyone who knows nothing about it, selecting a tool is really a problem. Think about it and find an open source tool. Of course, there are a lot of articles in this area, and there are also a lot of open-source data mining tools. After half a day, I finally selected KNIME.

However, next is another big problem. This is not helpful in Chinese. Well, Lili can look at the help documentation in English...

After figuring out its basic working principle, we need to clarify the functions of those nodes. Otherwise, the basic functions of the nodes do not exist. How can we model them? Okay, learn and practice...

The first is to connect to the database, because most of the data still needs to be read from the database. If you only want to read a table, you can use Database Reader. KNIME comes with JDBCODBC Driver. I think you should have used windows management tools to create data sources? Yes, that is. Enter that parameter under the Database URL parameter. jdbc: odbc: Database_name indicates the name of the data source you created.

However, at that time, my connection was not successful and I thought this parameter was wrong. Later I found that this configuration had another parameter: SQL Statement. The default value is SELECT * FROM.

To

Maybe this is not a problem, but it is still a little useful for cainiao who just started learning KNIME like me. Haha, continue learning...

Replace it with the valid table in your database. Okay, the connection is successful!