https://www.udemy.com/course/sql-for-beginners-with-microsoft-sql-server-postgresql/
Query and interact with databases using SQL
What you'll learn: Backup a database Restore a database Create stored procedures Write SQL queries with confidence Select data from specific table column Select data from all table columns Join data from multiple tables Insert records into the database Extract data from database using subqueries Delete records Query databases with multiple operators Group data Aggregate data Filter Data from database Sort data from database Requirements: No SQL experience required. Description: SQL or Structured Query Language is a critical tool for data professionals. It is undoubtedly the most important language for getting a job in the field of data analysis or data sciences. Millions of data points are being generated every minute and raw data does not have any story to tell. After all this data gets stored in databases and professionals use SQL to extract this data for further analysis. SQL is the most common language for extracting and organising data that is stored in a relational database. A database is a table that consists of rows and columns. SQL is the language of databases. It facilitates retrieving specific information from databases that are further used for analysis. SQL can be used to: Execute queries against a database Retrieve data from a database Insert records into a database Update records in a database Delete records from a database Create new databases, or new tables in a database Create stored procedures & views in a database Set permissions on tables, procedures, and views Backup and restore data Join data from multiple tables Microsoft SQL Server is a relational database management system developed by Microsoft. As a database server, it is a software product with the primary function of storing and retrieving data as requested by other software applications—which may run either on the same computer or on another computer across a network. PostgreSQL, also known as Postgres, is a free and open-source relational database management system emphasizing extensibility and SQL compliance. Who this course is for: Beginners to SQL
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