Inserting updating and deleting data to mysql through php

Posted by / 06-Nov-2017 05:43

Inserting updating and deleting data to mysql through php

For example, suppose we want to delete “The Alchemist” from Books TBL.

To do so, we will use the DELETE statement as follows: As in the case of UPDATE, it is a good idea to do a SELECT first in order to view the record(s) that may potentially be impacted by the DELETE.

That is part of the organization that characterizes the use of relational databases. Maria DB [(none)] Once the database has been created, we need to create at least two tables on it. As we explained earlier, tables are database objects where we will keep persistent information.

To create a new database named

For example, SELECT * FROM Authors TBL WHERE Author Name='Agatha Christie'; ---------- ----------------- | Author ID | Author Name | ---------- ----------------- | 1 | Agatha Christie | ---------- ----------------- 1 row in set (0.00 sec) Maria DB [Bookstore DB] SELECT * FROM Authors TBL; ---------- ----------------- | Author ID | Author Name | ---------- ----------------- | 1 | Agatha Christie | | 2 | Stephen King | | 3 | Paulo Coelho | ---------- ----------------- 3 rows in set (0.00 sec) Maria DB [Bookstore DB] INSERT INTO Books TBL (Book Name, Author ID, Book Price, Book Is Available) VALUES ('And Then There Were None', 1, 14.95, 1), ('The Man in the Brown Suit', 1, 23.99, 1), ('The Stand', 2, 35.99, 1), ('Pet Sematary', 2, 17.95, 0), ('The Green Mile', 2, 29.99, 1), ('The Alchemist', 3, 25, 1), ('By the River Piedra I Sat Down and Wept', 3, 18.95, 0); At this point we will do a SELECT to see the records in Books TBL.If UNSIGNED is specified, negative values are not be allowed.After having reviewed these data types, you will be in a better position to determine which data type you need to assign to a given column in a table.View all Posts Gabriel Cánepa Gabriel Cánepa is a GNU/Linux sysadmin and web developer from Villa Mercedes, San Luis, Argentina.He works for a worldwide leading consumer product company and takes great pleasure in using FOSS tools to increase productivity in all areas of his daily work.

inserting updating and deleting data to mysql through php-50inserting updating and deleting data to mysql through php-23inserting updating and deleting data to mysql through php-52

Also, don’t forget to add the WHERE clause and a condition (Book ID=6) to select the specific record to be removed.