MySQL comments are most often used in conjunction with languages like SQL and PHP where we can insert them into a text file or script using the comment function * / (e.g., /* This is my comment */). They’re typically just as easy to use anywhere else, too. How to write a comme...
MySQL, like most databases, allows you to add comments to each table and column. If used, this is useful for understanding database schema and meaning of data elements. In this tutorial, I would like to show you how to view and edit table and column comments withMySQL Workbench- a free ...
Log in to your MySQL server as root. # mysql -u root -p Create a sample database named sample_db. mysql> CREATE DATABASE sample_db; Switch to the sample_db database. mysql> USE sample_db; Create a new table named states. mysql> CREATE TABLE states ( id BIGINT PRIMARY KEY AUTO_...
Step 3: Configure Netdata to Monitor MySQL/MariaDB The default configuration is just enough to get you started with monitoring yourMySQL/MariaDBdatabase server. In case you have read the documentation, and made any changes to the above file, you need to restart the netdata service to effect ...
AMySQL Server. 1. Create a Test Database SSH to your server and log in to MySQL as root. $ sudo mysql -u root -p Key in your MySQL root password and pressEnterto continue. Then, once you get themysql>prompt, type the command below to create a test database. ...
I'll try that. I think I'll need to modify the pattern a little to accommodate the comments/notes table, and I need to provide for the possibility of more than one note per field, something like this: create table account_trans_notes ( atn_id int(10) unsigned primary key, atn_...
The main challenge here is to create 200 times 3 triggers. You can use a smart text editor or write a small piece of code that generates the script for creating the 600 triggers. Another downside of this approach is that if you need to change anything in the logic of the triggers you...
In our previous set of articles, we’ve created a simple 2 page website that allows users to submit comments about the page they were looking at. In this article, we’re going to show you how to use PHP to Connect to and Retrieve Data from MySQL. Step 1. Create our SQL Query to ...
This time, we’re going to use some of that to build a simple example application using modern tools. Hello, MySQL World We’re going to write a simple application in C that connects to a MySQL server and executes queries. The entire source code of this project ...
Presumably there'll be no need to annotate at_id or at_recorded, perhaps not at_description either. Then at most you need a four-column child table ... create table account_trans_notes ( at_id int(10) unsigned primary key, at_description_notes varchar(255), at_amount_notes varch...