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I want to select data from more tables with Inner join.
These are my tables.
Student (studentId, firstName, lastname) Exam (examId, name, date) Grade (gradeId, fk_studentId, fk_examId, grade) I want to write a statement that shows which exam, grade and date alle the students have been to. Sorted after date.
This is my statement. It runs, but i want to make sure that i am doing it correctly.
SELECT student.firstname, student.lastname, exam.name, exam.date, grade.grade FROM grade INNER JOIN student ON student.studentId = grade.gradeId INNER JOIN exam ON exam.examId = grade.gradeId ORDER BY exam.date 
621
It is possible to use multiple join statements together to join more than one table at the same time. To do that you add a second INNER JOIN statement and a second ON statement to indicate the third table and the second relationship.
The syntax for multiple joins: SELECT column_name1,column_name2,.. FROM table_name1 INNER JOIN table_name2 ON condition_1 INNER JOIN table_name3 ON condition_2 INNER JOIN table_name4 ON condition_3 . . . Note: While selecting only particular columns use table_name.
SQL Server CROSS JOIN Tutorial The CROSS JOIN is used to show every possible combination between two or more sets of data. You can do a cross join with more than 2 sets of data.
Almost correctly.. Look at the joins, you are referring the wrong fields
SELECT student.firstname, student.lastname, exam.name, exam.date, grade.grade FROM grade INNER JOIN student ON student.studentId = grade.fk_studentId INNER JOIN exam ON exam.examId = grade.fk_examId ORDER BY exam.date If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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