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Datetimes versus timestamps in MySQL

There are several different ways to store dates and times in MySQL, and knowing which one to use requires understanding what you'll be storing and how MySQL handles each type. There are five column types that you can use to store temporal data in MySQL. They are: DATE DATETIME TIMESTAMP YEAR TIME Each column type stores slightly different data, has different minimum and maximum values, and requires different amounts of storage. In the table below, you'll see each column type and their various attributes.| Column | Data | Bytes | Min | Max | |-----------|-------------|-------|---------------------|---------------------| | DATE | Date only | 3 | 1000-01-01 | 9999-12-31 | | DATETIME | Date + time | 8 | 1000-01-01 00:00:00 | 9999-12-31 23:59:59 | | TIMESTAMP | Date + time | 4 | 1970-01-01 00:00:00 | 2038-01-19 03:14:17 | | YEAR | Year only | 1 | 1901 | 2155 | | TIME | Time only | 3 | -838:59:59 | 838:59:59 |

Dates, years, and times Based on this …

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Datetimes versus timestamps in MySQL

Storing datetime and timestamp data in MySQL correctly.

Galera Cluster 5.7 (or older) to MySQL 8.0 migration training

Course Dates

Public course: EMEA timezone 26th of September. USA timezone 27th of September.

Company dedicated training or consulting session, request for dates for your company via email to: sales@galeracluster.com

Course Duration

1 day.  The breakdown is 3 hours, with a half hour lunch break, and another 3 hours per day. There will be bio-breaks. The total contact time with the trainer is 6 hours over a span of 1 day.

Requirements

  • You need to be able to use Zoom the platform we will be using
  • You will need to have access to an SSH client. Being in a Microsoft Windows environment is OK, but you need to have SSH to access the remote servers that we provide you access to.
  • Some basic understanding of Linux (e.g. package management) as well as MySQL
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Moving MySQL Databases from AWS to OCI Using MySQL Shell

Using MySQL Shell, we can dump databases to and from various cloud providers.In this post, we will discuss how you can dump data from a MySQL database in AWS to an S3 bucket and then load that data into an instance of MySQL HeatWave in OCI using just two commands.

Build an expense tracker app with Symfony and MySQL

Learn how to build a use MySQL with Symfony by building an expense tracking application using a PlanetScale MySQL database.

Build an expense tracker app with Symfony and MySQL

Learn how to build a use MySQL with Symfony by building an expense tracking application using a PlanetScale MySQL database.

Setting up Resource Limits on Users in MySQL

Often while managing and creating new users, we use all the default options and tend not to use extra features provided by MySQL. These extra options could prevent a user from using all the resources and degrading the performance of MySQL. In this blog, we will discuss a few such features that will put resource restrictions on users.

max_user_connections

Sometimes, due to unprecedented growth or huge transactions, a single user makes too many connections, and the MySQL server gets starved of free connections. This blocks the DBA from logging into MySQL to fix it. To fix it in MySQL 5.7 and below, we have to do a restart. For MySQL 8, it can be done without a restart, but we have to configure the admin interface beforehand. You can read more about it here in Dealing With “Too Many Connections” Error in MySQL 8.

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Tuning BLOB for performance in NDB [Part 1]

Learn how to configure the inline size of BLOB columns of NDB tables through SQL and see how can it improve the application.

OpenLampTech issue #83 – Substack Repost

There is so much content online these days about any niche. But, if you want to know what’s happening in the PHP, MySQL, and LAMP stack landscapes, then OpenLampTech has you covered. Thanks for reading!

Custom WooCommerce and Shopify Solutions

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The Newsletter for PHP and MySQL Developers

Receive a copy of my ebook, “10 MySQL …

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MySQL Workbench Fits

My students wanted an illustration of where MySQL Workbench fits within the MySQL database. So, I overlaid it in this drawing from my old book on comparative SQL syntax for Oracle and MySQL. Anybody else have a cool alternative illustration?

The idea is the lightening bolt transmits an interactive call and reading a script file submits a call paradigm.

As always, I hope this helps those looking to understand things.

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