34,333
edits
Changes
New page: MySQL provides a a number of functions used for performing algebraic, geometric and trigonometric calculations on database data. In this chapter the basics of using this functions will be ...
MySQL provides a a number of functions used for performing algebraic, geometric and trigonometric calculations on database data. In this chapter the basics of using this functions will be covered.
== MySQL Arithmetic Functions ==
MySQL provides a wide range of functions designed to serve a range of arithmetical purposes. The following table lists each of the common functions togetehr with a brief description (although most are self-explanatory):
<table border="1" cellspacing="0">
<tr style="background:#efefef;">
<th><span class="bold"><strong>Name</strong></span></th>
<th><span class="bold"><strong>Description</strong></span></th>
</tr>
<tr>
<td>ABS()</td>
<td>Returns the absolute value</td>
</tr>
<tr>
<td>ACOS()</td>
<td>Returns the arc cosine</td>
</tr>
<tr>
<td>ASIN()</td>
<td>Returns the arc sine</td>
</tr>
<tr>
<td>
ATAN2(), ATAN()
</td>
<td>Returns the arc tangent of the two arguments</td>
</tr>
<tr>
<td>ATAN()</td>
<td>Returns the arc tangent</td>
</tr>
<tr>
<td>/</td>
<td>Division operator</td>
</tr>
<tr>
<td>
CEILING(), CEIL()
</td>
<td>Returns the smallest integer value not less than the argument</td>
</tr>
<tr>
<td>COS()</td>
<td>Returns the cosine</td>
</tr>
<tr>
<td>COT()</td>
<td>Returns the cotangent</td>
</tr>
<tr>
<td>
CRC32()()</td>
<td>Compute a cyclic redundancy check value</td>
</tr>
<tr>
<td>DEGREES()</td>
<td>Convert radians to degrees</td>
</tr>
<tr>
<td>
DIV()</td>
<td>Integer division</td>
</tr>
<tr>
<td>EXP()</td>
<td>Raise to the power of of the argument</td>
</tr>
<tr>
<td>FLOOR()</td>
<td>Returns the largest integer value not greater than the argument</td>
</tr>
<tr>
<td>MOD()</td>
<td>Returns the remainder</td>
</tr>
<tr>
<td>LN()</td>
<td>Returns the natural logarithm of the argument</td>
</tr>
<tr>
<td>LOG10()</td>
<td>Returns the base-10 logarithm of the argument</td>
</tr>
<tr>
<td>LOG2()</td>
<td>Returns the base-2 logarithm of the argument</td>
</tr>
<tr>
<td>LOG()</td>
<td> Returns the natural logarithm of the first argument </td>
</tr>
<tr>
<td>-</td>
<td>Minus operator</td>
</tr>
<tr>
<td>%</td>
<td>Modulo operator</td>
</tr>
<tr>
<td>PI()</td>
<td>Returns the value of pi</td>
</tr>
<tr>
<td>+</td>
<td>Addition operator</td>
</tr>
<tr>
<td>
POW(), POWER()
</td>
<td>Returns the argument raised to the specified power</td>
</tr>
<tr>
<td>RADIANS()</td>
<td>Returns argument converted to radians</td>
</tr>
<tr>
<td>RAND()</td>
<td>Returns a random floating-point value</td>
</tr>
<tr>
<td>ROUND()</td>
<td>Rounds the argument</td>
</tr>
<tr>
<td>SIGN()</td>
<td>Returns the sign of the argument</td>
</tr>
<tr>
<td>SIN()</td>
<td>Returns the sine of the argument</td>
</tr>
<tr>
<td>SQRT()</td>
<td>Returns the square root of the argument</td>
</tr>
<tr>
<td>TAN()</td>
<td>Returns the tangent of the argument</td>
</tr>
<tr>
<td>*</td>
<td>Times operator</td>
</tr>
<tr>
<td>TRUNCATE()</td>
<td>Truncates to specified number of decimal places specified in the argument</td>
</tr>
<tr>
<td>-</td>
<td>Change the sign of the value passed as an argument</td>
</tr>
</table>
== MySQL Arithmetic Functions ==
MySQL provides a wide range of functions designed to serve a range of arithmetical purposes. The following table lists each of the common functions togetehr with a brief description (although most are self-explanatory):
<table border="1" cellspacing="0">
<tr style="background:#efefef;">
<th><span class="bold"><strong>Name</strong></span></th>
<th><span class="bold"><strong>Description</strong></span></th>
</tr>
<tr>
<td>ABS()</td>
<td>Returns the absolute value</td>
</tr>
<tr>
<td>ACOS()</td>
<td>Returns the arc cosine</td>
</tr>
<tr>
<td>ASIN()</td>
<td>Returns the arc sine</td>
</tr>
<tr>
<td>
ATAN2(), ATAN()
</td>
<td>Returns the arc tangent of the two arguments</td>
</tr>
<tr>
<td>ATAN()</td>
<td>Returns the arc tangent</td>
</tr>
<tr>
<td>/</td>
<td>Division operator</td>
</tr>
<tr>
<td>
CEILING(), CEIL()
</td>
<td>Returns the smallest integer value not less than the argument</td>
</tr>
<tr>
<td>COS()</td>
<td>Returns the cosine</td>
</tr>
<tr>
<td>COT()</td>
<td>Returns the cotangent</td>
</tr>
<tr>
<td>
CRC32()()</td>
<td>Compute a cyclic redundancy check value</td>
</tr>
<tr>
<td>DEGREES()</td>
<td>Convert radians to degrees</td>
</tr>
<tr>
<td>
DIV()</td>
<td>Integer division</td>
</tr>
<tr>
<td>EXP()</td>
<td>Raise to the power of of the argument</td>
</tr>
<tr>
<td>FLOOR()</td>
<td>Returns the largest integer value not greater than the argument</td>
</tr>
<tr>
<td>MOD()</td>
<td>Returns the remainder</td>
</tr>
<tr>
<td>LN()</td>
<td>Returns the natural logarithm of the argument</td>
</tr>
<tr>
<td>LOG10()</td>
<td>Returns the base-10 logarithm of the argument</td>
</tr>
<tr>
<td>LOG2()</td>
<td>Returns the base-2 logarithm of the argument</td>
</tr>
<tr>
<td>LOG()</td>
<td> Returns the natural logarithm of the first argument </td>
</tr>
<tr>
<td>-</td>
<td>Minus operator</td>
</tr>
<tr>
<td>%</td>
<td>Modulo operator</td>
</tr>
<tr>
<td>PI()</td>
<td>Returns the value of pi</td>
</tr>
<tr>
<td>+</td>
<td>Addition operator</td>
</tr>
<tr>
<td>
POW(), POWER()
</td>
<td>Returns the argument raised to the specified power</td>
</tr>
<tr>
<td>RADIANS()</td>
<td>Returns argument converted to radians</td>
</tr>
<tr>
<td>RAND()</td>
<td>Returns a random floating-point value</td>
</tr>
<tr>
<td>ROUND()</td>
<td>Rounds the argument</td>
</tr>
<tr>
<td>SIGN()</td>
<td>Returns the sign of the argument</td>
</tr>
<tr>
<td>SIN()</td>
<td>Returns the sine of the argument</td>
</tr>
<tr>
<td>SQRT()</td>
<td>Returns the square root of the argument</td>
</tr>
<tr>
<td>TAN()</td>
<td>Returns the tangent of the argument</td>
</tr>
<tr>
<td>*</td>
<td>Times operator</td>
</tr>
<tr>
<td>TRUNCATE()</td>
<td>Truncates to specified number of decimal places specified in the argument</td>
</tr>
<tr>
<td>-</td>
<td>Change the sign of the value passed as an argument</td>
</tr>
</table>
