Explaining certain functions in SQL

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Functions
SQL
SQL statements
What do the MOD function and the ROUND function do in SQL?

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The MOD function in T/SQL is actually the % which is the modulo operator.

From Books OnLine:
<pre>Returns the remainder of one number divided by another.

SELECT 38 / 5 AS Integer, 38 % 5 AS Remainder ;</pre>

The ROUND function takes a number with a decimal place and rounds it to the nearest while number.

<pre>SELECT ROUND(123.9994, 3), ROUND(123.9995, 3)</pre>

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