Graphical code analysis of migrating mysql data to Oracle
This article mainly introduces the correct method of data migration to Oracle in detail mysql, which has certain reference value. Interested friends can refer to it
在mysql databaseThere is a table student in the Oracle database, its structure is as follows:
There is a table from_mysql in the Oracle database, its structure is as follows:
Now we need to transfer the data from mysql student to Oracle's from_mysql. Here, I can quickly implement this function with the help of kettle's spoon tool.
First, open spoon, create a new transformation, named table input to table output. Then find the table input from the input in the core object , drag it to the editing interface, then find the output from the output and drag it to the editing interface, connect the table input and table output, as shown in the figure:
Right-click the table input, select the edit step, and the following window will pop up:
Connect to the database Select the connected data there, select mysql here, and click Edit to modify the database. If the database has not been configured yet, click New, and the database will be configured. For specific configuration, please view the kettle-configuration resource library.
Enter the sql statement in the sql input box to filter the data to be migrated. If the sql statement contains variables, check the box below to replace the variables in the sql statement.
Right-click the table output, select the edit step, and the following window will pop up:
The database connection is similar to the table input, except that Oracle is selected here. Select from_mysql in the target table. Because we selected test data and the amount of data is not large, the number of submitted records here can be kept as default.
Next, create a new job and name it table output. Find start, set variables, and transformation in the general area of the core object, drag it to the editing interface, and connect the three objects, as shown in the figure:
Right-click set variables, select the edit job entry, edit the variable name name and variable value in the pop-up window, as shown below:
right Click transformation, select the edit job entry, select the transformation name in the pop-up window, and find the transformation you just saved: table input to expression. As shown below:
At this point, all the work is completed. Click Run to extract data from mysql and transfer it to Oracle.
The above is the detailed content of Graphical code analysis of migrating mysql data to Oracle. For more information, please follow other related articles on the PHP Chinese website!
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