DBMS - DATABASE MANAGEMENT SYSTEM, DDL - Data Definition Language.(DDL) is used to create and modify the structure of objects in a database using predefined commands and a specific syntax., ER DIAGRAMMER - In ER modeling the database structure is represented as a diagram known as ER diagram (ERD). An ER diagram gives a better understanding of the overall database structure, MYSQL - is a relational database management system (RDBMS) developed by Oracle that is based on structured query language (SQL), PRIMARY KEY - The primary key in SQL is a single, or a group of fields or columns that can uniquely identify a row in a table. Putting it simply, it is a column that accepts unique values for each row., UNUQE KEY - A unique key in DBMS is a key that is able to identify all the records of a table uniquely., JOIN IN DBMS - Join is an operation in DBMS(Database Management System) that combines the rows of two or more tables based on related columns between them. The main purpose of join is to retrieve the data from multiple tables in other words Join is used to perform multi-table queries., ENTITY IN DBMS - In Database Management Systems (DBMS), an entity is a core concept representing any real-world object, concept, or person about which data can be stored., TABLE IN DBMS - Tables are database objects that contain all the data in a database., CLASSES IN DBMS - Classes define the structure of the database and the tables within it,

DBMS LEARNING

列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?