Master SQL: Commands, Databases, Diagrams & Data Types
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In this riveting SQL full course by Simplilearn, brace yourself for a journey into the world of structured query language - the backbone of data management for websites, apps, and businesses. SQL, the go-to tool for organizing and analyzing data, is a must-have skill for developers, data analysts, and database admins. As companies increasingly rely on data-driven decisions, the demand for SQL experts is skyrocketing, with starting salaries hitting $50,000 in the US and 4 to 8 lakh per annum in India. Seasoned professionals can rake in over $100,000 in the US. This course promises to transform you from a SQL beginner to a confident user, equipping you with the prowess to write queries, join tables, and tackle real data analysis projects like a pro.
Delve into the realm of databases as Simplilearn sheds light on how data is stored in relational databases and introduces you to popular databases like MySQL, Oracle, MongoDB, Microsoft SQL Server, Apache Cassandra, and Postgres SQL. SQL, a domain-specific language developed by IBM, serves as the conduit for communication with databases, enabling efficient data extraction and manipulation across various database systems. Learn the ropes of SQL commands that facilitate storing, processing, analyzing, and manipulating databases, propelling you towards mastery in the realm of data management. The course not only covers the fundamentals of SQL but also delves into its practical applications, making it a comprehensive guide for aspiring data enthusiasts.
Embark on an exhilarating journey through the intricacies of entity-relationship diagrams, essential for database design and blueprint creation. These diagrams serve as a visual representation of the logical structure of a database, aiding in the identification of entities, attributes, and relationships crucial for data storage. Dive deep into the components of entity-relationship diagrams, encompassing entities, attributes like key, composite, multivalued, and derived attributes, as well as relationships like one-to-one, one-to-many, many-to-one, and many-to-many relationships. Unravel the mysteries of SQL commands, classified into data definition language (DDL), data manipulation language (DML), data control language (DCL), and transaction control language (TCL), each playing a vital role in managing database transactions and access control.
Gear up for an adrenaline-fueled ride through the basic SQL command structure, featuring the select statement, where clause, group by clause, having clause, and order by clause. Explore the diverse data types in SQL, ranging from exact numeric, approximate numeric, date and time, string, to binary data types, each serving a unique purpose in data management. Discover the array of SQL operators, from basic arithmetic operators to comparison operators, logical operators, and wildcard operators, essential for performing a myriad of operations within databases. Simplilearn's SQL full course is your ticket to mastering the art of structured query language, empowering you to navigate the data-driven landscape with confidence and finesse.
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