In the previous tutorial, you have implemented the PHP and MySQL backend that exposes a REST API for working with an insurance database. Let's now create the Angular 7 backend.

In this tutorial, you'll learn how to use HttpClient to make HTTP calls to a REST API and use template-based forms to submit data.

Now that you've created the RESTful API with a PHP script, you can proceed to create your Angular 7 project.

Installing Angular CLI 7

The recommended way of creating Angular projects is through using Angular CLI, the official tool created by the Angular team. The latest and best version yet is Angular CLI 7 so head back to another terminal window and run the following command to install the CLI: $ npm install -g @angular/cli

Note: This will install Angular CLI globally so make sure you have configured npm to install packages globally without adding sudo in Debian systems and macOS or using an …

Please join Percona’s Information Security Architect, David Bubsy, as he presents his talk Web Application Security – Why You Should Review Yours on March 14th, 2019 at 6:00 AM PDT (UTC-7) / 9:00 AM EDT (UTC-4).

Register Now

In this talk, we take a look at the whole stack and I don’t just mean LAMP.

We’ll cover what an attack surface is and some areas you may look to in order to ensure that you can reduce it.

For instance, what’s an attack surface?

Acronym Hell, what do they mean?

…

One of the great things about Percona Monitoring and Management (PMM) is its flexibility. An example of that is how one can go beyond the exporters to collect data. One approach to achieve that is using textfile collectors, as explained in  Extended Metrics for Percona Monitoring and Management without modifying the Code. Another method, which is the subject matter of this post, is to use custom queries.

While working on a customer’s contention issue I wanted to check the behaviour of InnoDB Mutexes over time. Naturally, I went straight to PMM and didn’t find a graph suitable for my needs. No graph, no problem! Luckily anyone can enhance PMM. So here’s how I made the …

On previous posts about Group Replication consistency we:

1. introduced consistency levels;
2. explained how to configure the primary failover consistency;
3. presented how to configure transaction consistency levels to achieve the consistency required by your applications.

In blog 3. we presented the consistency levels: EVENTUAL, BEFORE, AFTER and BEFORE_AND_AFTER; their scopes: SESSION, GLOBAL; and their context: whether they only impact the ongoing transaction or all concurrent transactions.…

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MySQL Community with an APAC MySQL team are going to be part of the FOSSASIA Summit this week. We are a Bronze sponsor with a MySQL booth in the exhibition area. We are also having several talks in the Database track on Saturday, March 16, please see some of them below together with the details about the show:

• Name: FOSSASIA Summit 2019
• Place: Singapore
• Date: March 14-17, 2019
• MySQL talks in Database Track on Mar 16 in Training Room 2-1:
  • "Replication: What's New in MySQL 8.0" by Narendra S Chauhan, the Principal Technical Staff @Replication Development team. The talk is scheduled for 10:55-11:20.
  • "Upgrading to MySQL 8.0+, a more automated experience" by Nisha Gopalakrishnan, the Principal Technical Staff @MySQL Server Development team. The talk is scheduled for …

Author: Scott Stone

We are pleased to announce the general availability of SQL Diagnostic Manager for MySQL 8.8. Existing users may upgrade to this version through the Idera Customer Portal. New users may download the trial version from the Idera Website or the Monyog Website.

Rebranded from the popular Monyog product for monitoring performance of MySQL and other MySQL compatible databases, SDM for MySQL is  a comprehensive solution to monitor, alert, and diagnose the availability, health, and performance of MySQL, or MariaDB in physical, virtual, and cloud environments.

SQL Diagnostic Manager for MySQL addresses the most critical performance …

MySQL error log contains diagnostics messages such as errors, warnings and notes that occur during MySQL startup, shutdown and while the server is running. For example, a InnoDB table is corrupted and need to repaired, This will be recorded in the error log. MySQL 8.0 Error uses the MySQL component architecture for log event filtering and writing. The MySQL system variable log_error_services controls which log components to enable and the rules for filtering the log events. The component table in the mysql system database contains the information about currently loaded comments and shows which components have been registered with INSTALL COMPONENT. To confirm the components installed, you may use the SQL below:

SELECT * FROM mysql.component;

Currently the available log components are in lib/plugins:

• component_log_filter_dragnet.so
• component_log_sink_json.so
…

I have had some requests to write some blogs on the basics of using PHP and MySQL together.  This will not be a series for the experienced as it will start at a level where I will go into a lot of details but expect very few prerequisites from the reader.  If this is not you, please move on. If it is you and you read something you do not understand, please contact me to show me where I assumed too much.

PHP and MySQL are both in their mid twenties and both vital in the worlds of developers.  With the big improvements in PHP 7 and MySQL 8, I have found a lot of developers flocking to both but stymied by the examples they see as their are many details not explained. So let's get to the explaining!
1. Use the latest software
If you are not using PHP 7.2 or 7.3 (or maybe 7.1) then you are missing out in features and performance.  The PHP 5.x series is deprecated, no longer support, and …

This was not on the radar. I have never been proficient in Galera clusters and related technologies, and thus I hadn’t given much thought to Percona Xtradb Cluster (PXC), until Alkin approached me at FOSDEM, and proposed to extend dbdeployer features to support PXC. He mentioned that many support engineers at Percona use dbdeployer) on a daily basis and that the addition of PXC would be welcome.

I could not follow up …

In this blog post, I want to share a case we worked on a few days ago. I’ll show you how we approached the resolution of a MySQL performance issue and used Percona Monitoring and Management PMM to support troubleshooting. The customer had noticed a linear high CPU usage in one of their MySQL instances and was not able to figure out why as there was no much traffic hitting the app. We needed to reduce the high CPU usage on MySQL. The server is a small instance:

Models | 6xIntel(R) Xeon(R) CPU E5-2430 0 @ 2.20GHz
10GB RAM

This symptom can be caused by various different reasons. Let’s see how PMM can be used to troubleshoot the issue.

CPU

It’s important to understand where the CPU time is being consumed: user space, system space, iowait, and so on. Here we can see that CPU usage was …