
Brief history of databases and the importance of SQL.
Delete data from a sql database using sql queries and the where clause, deleting by id, range, or text while emphasizing unique identifiers and backups.
Update data in a SQLite database using the update statement with a where clause to target specific rows, such as adjusting employee salaries by id or by a salary range.
Combine data from customers and contracts with a single query by joining on the common customer id, select specific columns to avoid ambiguity, and explore cross joins for results.
SQL is the most used Database language in the world, it is at heart of the Internet and every database system. Learn the basic SQL language you need to succeed
Almost every database system in the world uses SQL. It's in websites, operating systems, computer programs, mobile devices and many other places. If you are in IT, you are really missing out if you don't learn SQL. So, don't be left behind! Learn SQL the easy way with SQLite.
At the end of this course, you will be able to use SQL with any database system.
All course updates are 100% FREE. Buy this course once and own it for life. You will have SQL support: You can ask me direct questions.
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