But as we have applied LEFT JOIN so the query selects all the rows from the left table even if there is no match. In the above output, the status of rollno 5 and 6 is None because their result is not mentioned in the results table. The output of the above code is as follows. Sql = "SELECT students.rollno, students.name,students.Branch,students.Address, results.status from students LEFT JOIN results ON students.rollno=results.rollno " Let us see an example given below for the Left Join: import nnector as mysql If you want to fetch all the records fromthea left-hand side table even if there is no match then Left Join will be used. It is important to note that the INNER JOIN(which we covered in the example above) only shows the rows in the resultset when there is a match. Here is the snapshot of the actual output: The above output indicates that both tables are joined. Sql = "SELECT students.rollno, students.name,students.Branch,students.Address, results.status from students INNER JOIN results ON students.rollno=results.rollno " Python MySQL - Joining two tablesīelow we have a code snippet where we will join two tables named results and students based on the column rollno: import nnector as mysql Yuo can directly run the query to create the new table in MySQL command line. Both results and students table have one field common that is rollno. Let us create another table named results after that we will join both the tables.īelow we have code to create a table named results. We have already created the students table in the studytonight database(from the Python MySQL create table tutorial). One thing to note here is that there must be a common column in both tables based on which this operation will be performed. In order to combine two or more tables in MySQL, JOIN statement is used. In this tutorial, we will learn how to join two or more MySQL tables in Python. Deleting List Elements & other Functions.
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