價格：免費
更新日期：2018-10-31
檔案大小：11M
目前版本：2.2
版本需求：Android 4.0.3 以上版本
官方網站：http://www.softecks.in
Email：contact@softecks.in
聯絡地址：201-B,Nishadham Blgd,1/5, Chipale,Panvel,Navi Mumbai-410206,Maharashtra, India
✴ A database management system (DBMS) is system software for creating and managing databases. The DBMS provides users and programmers with a systematic way to create, retrieve, update and manage data.✴
► A DBMS makes it possible for end users to create, read, update and delete data in a database. The DBMS essentially serves as an interface between the database and end users or application programs, ensuring that data is consistently organized and remains easily accessible.✦
【Topics Covered in this App are Listed Below】
⇢ Overview
⇢ Architecture
⇢ Data Models
⇢ Data Schemas
⇢ Data Independence
⇢ ER Model - Basic Concepts
⇢ ER Diagram Representation
⇢ Generalization Aggregation
⇢ Codd's 12 Rules
⇢ Relation Data Model
⇢ Relational Algebra
⇢ ER Model to Relational Model
⇢ SQL Overview
⇢ Normalization
⇢ Joins
⇢ Storage System
⇢ File Structure
⇢ Indexing
⇢ Hashing
⇢ Transaction
⇢ Concurrency Control
⇢ Deadlock
⇢ Data Backup
⇢ Data Recovery
⇢ What is a Database Management System?
⇢ Who Interacts with a DBMS?
⇢ Components of a Database System
⇢ Basic Set Concepts
⇢ DBMS Database Models
⇢ Database Keys
⇢ What is First Normal Form (1NF)?
⇢ What is Second Normal Form?
⇢ Third Normal Form (3NF)
⇢ Boyce-Codd Normal Form (BCNF)
⇢ Fourth Normal Form (4NF)
⇢ create command
⇢ ALTER command
⇢ Truncate, Drop or Rename a Table
⇢ INSERT SQL command
⇢ UPDATE SQL command
⇢ DELETE SQL command
⇢ Commit, Rollback and Savepoint SQL commands
⇢ GRANT and REVOKE
⇢ SELECT SQL Query
⇢ WHERE SQL clause
⇢ SQL LIKE clause
⇢ ORDER BY Clause
⇢ Group By Clause
⇢ HAVING Clause
⇢ DISTINCT keyword
⇢ AND & OR operator
⇢ Division Operator in SQL
⇢ SQL Constraints
⇢ What are SQL Functions?
⇢ Scalar Functions
⇢ SQL Alias - AS Keyword
⇢ SET Operations in SQL
⇢ What is an SQL Sequence?
⇢ SQL VIEW
