为了方便一个共享用户环境(如 web 应用程序)中的客户端的识别,也显示了 CLIENT_ID 列,这可以由DBMS_SESSION.SET_IDENTIFIER 来设置。 既然ASH 信息这么有价值,那么如果以一种类似于 AWR 的永久方式来保存这种信息不是很好吗?幸运的是,它是以这种方式来进行保存的;由 MMON 从进程将信息刷新到 AWR 表中,从而
Describe the use of keys in a database. Can you have more than one key? Explain.Question:Describe the use of keys in a database. Can you have more than one key? Explain.Keys in a databaseA key is an set of data base which is designed to recognize rows and...
Why is a database system a critical component of business information systems? How do you create a culture of analytics in an organization? Why is it important to learn business analytics? Describe at least three functions that a Database Management System (DBMS) performs to help create an...
Fewer errors: Barcodes hold so little information that there is very little redundancy. Apart from the length of the bars (which effectively repeat the barcode's information in the vertical direction), there is no duplication of information to guard against a code being misprinted or damaged (su...
1. Categorize the five common characteristics of high-quality information and rank them in order of importance for big data. 2. Explain how issues with low-quality information will impact big data. Describe at least three functions that a Database ...
1. Categorize the five common characteristics of high-quality information and rank them in order of importance for big data. 2. Explain how issues with low-quality information will impact big data. Describe at least three functions that a Databas...