Mysql
MySql:
You deal with data every day…
When you want to listen to your favorite songs, you open your playlist from your smartphone. In this case, the playlist is a database.
When you take a photo and upload it to your account on a social network like Facebook, your photo gallery is a database.
When you browse an e-commerce website to buy shoes, clothes, etc., you use the shopping cart database.
Databases are everywhere. So what is a database? By definition, a database is merely a structured collection of data.
The data relate to each other by nature, e.g., a product belonged to a product category and associated with multiple tags. Therefore, we use the term relational database.
In the relational database, we model data like products, categories, tags, etc., using tables. A table contains columns and rows. It is like a spreadsheet.
A table may relate to another table using a relationship, e.g., one-to-one and one-to-many relationships.
Because we deal with a significant amount of data, we need a way to define the databases, tables, etc., and process data more efficiently. Besides, we want to turn the data into information.
And this is where SQL comes to play.
Mysql:
Data manipulation and Data definition
Lets dive into Data manipulation:
MySQL SELECT |
MySQL DISTINCT |
MySQL WHERE |
MySQL AND |
MySQL OR |
MySQL LIMIT |
MySQL IN |
MySQL BETWEEN |
MySQL LIKE |
MySQL ORDER BY |
MySQL Alias |
MySQL Join |
MySQL INNER JOIN |
MySQL LEFT JOIN |
MySQL RIGHT JOIN |
MySQL CROSS JOIN |
MySQL Self Join |
MySQL GROUP BY |
MySQL HAVING |
MySQL Subquery |
MySQL UNION |
MySQL MINUS |
MySQL INTERSECT |
MySQL INSERT Statement |
MySQL Insert Or Update |
MySQL LAST_INSERT_ID Function |
MySQL UPDATE |
MySQL UPDATE JOIN |
MySQL DELETE |
MySQL DELETE JOIN |
MySQL ON DELETE CASCADE |
MySQL REPLACE |
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