我在表中有以下數據。MySQL內部連接限制結果從第二個表
Table Books Id | Book_Name 1 | Java Programming 2 | PHP Programming 3 | HTML5 Table Chapters Book Id | Chapter_Number 1 | Chapter 1 1 | Chapter 1v2 1 | Chapter 1v3 2 | Chapter 2 Release 1 2 | Chapter 2 Rev. 3 | Chapter 1 4 | Chapter 1
我想達到的目的是將章節號數據返回從每個書本章只限制到2行。我想
Book Id | Book Name | Chapter_Number 1 | Java Programming | Chapter 1 1 | Java Programming | Chapter 1v2 2 | Java Programming | Chapter 2 Release 1 2 | Java Programming | Chapter 2 Rev. 3 | Java Programming | Chapter 1 4 | Java Programming | Chapter 1
數據
實例有沒有辦法得到這個?
使用用戶定義變量的好主意。聰明的回答。 –
適合我的需求。謝謝:) – Syed
@drgbox - np,很高興我們可以幫助! – sgeddes