Explore comprehensive notes on Database Management Systems (DBMS) and SQL queries tailored for BIT, BCA, BScCSIT, BCSIT, and BIM programs. Learn SQL for data science and enhance your understanding of database management. Start mastering SQL today
Database management system (DBMS) is a type of software or tools that helps to manage the database. User can create , maintain, manipulate and retrieve data or information from a single table or group of interrelated table. DBMS act as an interface between user/application program and database. Example : Oracle Database , SQL Server, MySQL,
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Database is an organized collection of structure data or information that is stored in such a way that it can be easily accessed , create, update, delete and managed. Data Data are raw fact that have no specific meaning. Information Information is processed data that has purpose and meaning. Data Processing Data is a collection
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A database model refers to the structure of a database and determines how the data within the database can be organized and manipulated Multiple types of relationships can be supported in database modeling. •One to one (1-1) •One to many (1-M) •Many to One (M-1) •Many to Many (M-M) Type of Database Model Hierarchical Model
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In SQL, data types are used to define the type of data that can be stored in a database table’s columns. Some commonly used SQL data types are : Numeric Data Types Character Data Types Date and Time Data Types Boolean Data Type Binary Data Types Numeric Data Types INTEGER /INT : Used to store
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SQL Stands for Structure Query Language. It is an ANSI (American National Standard Institute) Standard. SQL is a database programming language used for manipulating and managing relational database Users can create complex queries and perform complex tasks efficiently using SQL and it is an essential tool for data management, analysis and reporting in various industries
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