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How to Customize MySQL Date Formatting for Display and Programming Environments?

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2024-10-29 09:21:03321browse

How to Customize MySQL Date Formatting for Display and Programming Environments?

Understanding MySQL Date Format

MySQL stores dates internally in a packed three-byte integer format, consisting of day, month, and year values. However, when displayed, these dates appear as '0000-00-00' to maintain precision.

Custom Formatting with DATE_FORMAT()

To display dates in a specific format, such as 'd-m-Y', you can use the DATE_FORMAT() function. This function converts the date value to a human-readable string in the chosen format.

DATE_FORMAT() Syntax

The syntax for DATE_FORMAT() is as follows:

DATE_FORMAT(date_column, '%d-%m-%Y')

Example Usage

To select and display a date column in the 'd-m-Y' format, you can use the following query:

SELECT col1, col2, DATE_FORMAT(datecolumn, '%d-%m-%Y') AS datecolumn, more1...
FROM sometable
....

Note for Programming Environments

It's important to note that while using DATE_FORMAT() may be necessary for display purposes, when using the query in a programming environment, you should retrieve the raw date value. This value can then be formatted using the appropriate formatting function provided by your programming language.

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