Let us say that we have a Student Database in which we have the details of the students like their names, address, attendance percentage, etc. Now we run an SQL Query that says: SELECT AVG ATTENDANCE FROM STUDENTS.

Let us say that we have a Student Database in which we have the details of the students like their names, address, attendance percentage, etc. Now we run an SQL Query that says: SELECT AVG ATTENDANCE FROM STUDENTS.

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: hard

标签: interviewbit, db2, topic-specific, database

参考答案摘要

Can you tell me any issues that may be here? Yes, there might be an issue. For instance, if there is such a case where we have set that the attendance of any student cannot be null and at the same tim...

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