- SQL Server on Linux
- Jasmin Azemovi?
- 205字
- 2021-07-02 20:24:19
Database objects
Tables are the containers for database records. They represent basic elements of the database structure. For example, Students, Educators, Courses, and Grades can be a table in some hypothetical eUniversity system. Tables are built around data types bounded on table columns. For example, LastName - nvarchar(50), Salary - Money, BirthDate - datatime. Every data operation includes tables and some of the other database objects (listed as follows):
- Stored procedures are objects in the database for storing methods of actions. A procedure could be described as a program that processes actions in the database. For example, inserts, updates, and/or delete rows in a table.
- Functions are objects in the database that encapsulate formulas and calculations and return either scalar values, or sets of data.
- Views are an object that consists of one select-statement, and are referenced as a table. Normalized database views bring normalized data together and masks complex table structures.
- Schemas are an organizational object and can be described as a folder in a filesystem. All objects in a database must belong to a schema.
- User-defined objects are objects that consist of an interpretation of a native SQL Server data type and offer a standardized method of describing the value of columns, variables, and parameters.
推薦閱讀
- Spring Cloud Alibaba核心技術與實戰案例
- Building Modern Web Applications Using Angular
- 數據結構(Java語言描述)
- Java加密與解密的藝術(第2版)
- 數據結構與算法JavaScript描述
- 老“碼”識途
- Java EE 7 Development with NetBeans 8
- 自然語言處理Python進階
- Odoo 10 Implementation Cookbook
- Building Serverless Web Applications
- 網絡數據采集技術:Java網絡爬蟲實戰
- Learning Kotlin by building Android Applications
- 算法秘籍
- 從零開始學Python大數據與量化交易
- Mastering OpenStack