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How to Remove Trailing Zeros from Decimal Values in SQL Server?

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Release: 2025-01-14 13:51:44
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How to Remove Trailing Zeros from Decimal Values in SQL Server?

Eliminating Trailing Zeros in SQL Server Decimal Values

SQL Server's decimal data type allows defining precision and scale, but automatically appends trailing zeros to decimal values, which isn't always ideal.

Problem:

How do we remove trailing zeros from a DECIMAL column in SQL Server?

Solution:

While trailing zeros are part of the decimal data type's storage, their display is a formatting issue, usually handled by the client. SQL Server Management Studio (SSMS), for example, displays floating-point numbers without trailing zeros. We can use this to our advantage by casting the decimal value to a float.

Here's a query demonstrating this:

<code class="language-sql">SELECT 
    CAST(123.4567 AS DECIMAL(9,6)) AS OriginalValue,
    CAST(CAST(123.4567 AS DECIMAL(9,6)) AS FLOAT) AS FormattedValue;</code>
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This will output:

<code>OriginalValue     FormattedValue
123.456700        123.4567</code>
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Explanation:

Casting to FLOAT forces SSMS to format the number without trailing zeros. Note that the decimal separator might differ based on your regional settings. This method addresses the display of the value, not the underlying data storage. If you need to store the value without trailing zeros, consider using a different data type or adjusting the scale of your DECIMAL column during data insertion.

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