The DATETIME

Characteristics

1. Format: YYYY-MM-DD HH:MM:SS

2. Range: From January 1, 1000 to December 31, 9999.

3. Storage Size: 8 bytes.

4. Timezone: Does not convert or store timezone information. 

It stores the date and time as-is, without considering the server’s timezone 

settings.

​

Using DATETIME:

CREATE TABLE events (

    event_id INT AUTO_INCREMENT PRIMARY KEY,

    event_name VARCHAR(100),

    event_time DATETIME

);

​

INSERT INTO events (event_name, event_time)

VALUES ('Meeting', '2024-09-13 10:00:00');

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The TIMESTAMP

Characteristics

1. Format: YYYY-MM-DD HH:MM:SS

2. Range: From January 1, 1970 to December 31, 2038 (UNIX epoch time).

3.Storage Size: 4 bytes for values before the year 2038; 8 bytes for values 

after.

4. Tiimezone: Converts values to UTC for storage and converts back to the 

current timezone for retrieval based on the server’s timezone settings.

​

Using TIMESTAMP:

CREATE TABLE logs (

    log_id INT AUTO_INCREMENT PRIMARY KEY,

    log_description VARCHAR(255),

    log_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP

);

​

INSERT INTO logs (log_description)

VALUES ('User logged in');

The DATETIME type is used when you need values that contain both date

and time information. MySQL retrieves and displays DATETIME values 

in 'YYYY-MM-DD HH:MM:SS' format. The supported range is '1000-01-01 00:00:00'

to '9999-12-31 23:59:59'.

​

...

​

The TIMESTAMP data type has a range of '1970-01-01 00:00:01' UTC 

to '2038-01-09 03:14:07' UTC. It has varying properties, 

depending on the MySQL version and the SQL mode the server is running in.

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docker pull postgres