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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