| 19 |
19 |
<tr><td><i>number</i></td><td>number</td></tr>
|
| 20 |
20 |
<tr><td>NULL</td><td>null value</td></tr>
|
| 21 |
21 |
<tr><td>exp(<tt>a</tt>)</td><td>Euler's number e to the power of <tt>a</tt></td></tr>
|
| 22 |
|
<tr><td>ln(<tt>a</tt>)</td><td>natural log (i.e. base e) of <tt>a</tt></td></tr>
|
| 23 |
|
<tr><td>log10(<tt>a</tt>)</td><td>log base 10 of <tt>a</tt></td></tr>
|
|
22 |
<tr><td>ln(<tt>a</tt>)</td><td>natural logarithm (i.e. log base e) of <tt>a</tt></td></tr>
|
|
23 |
<tr><td>log10(<tt>a</tt>)</td><td>common logarithm (i.e. log base 10) of <tt>a</tt></td></tr>
|
| 24 |
24 |
<tr><td>log(<tt>a</tt>,<tt>b</tt>)</td><td>log base <tt>b</tt> of <tt>a</tt></td></tr>
|
| 25 |
25 |
<tr><td>sqrt(<tt>a</tt>)</td><td>square root</td></tr>
|
| 26 |
26 |
<tr><td>sin(<tt>a</tt>)</td><td>sine of <tt>a</tt></td></tr>
|
| ... | ... | |
| 35 |
35 |
<tr><td>lower(<tt>a</tt>)</td><td>convert string <tt>a</tt> to lower case</td></tr>
|
| 36 |
36 |
<tr><td>upper(<tt>a</tt>)</td><td>convert string <tt>a</tt> to upper case</td></tr>
|
| 37 |
37 |
<tr><td>length(<tt>a</tt>)</td><td>length of string <tt>a</tt></td></tr>
|
| 38 |
|
<tr><td>atan2(y,x)</td><td>arctangent of y/x using the signs of the two arguments to determine the quadrant of the result.</td></tr>
|
|
38 |
<tr><td>atan2(<tt>y</tt>,<tt>x</tt>)</td><td>arctangent of <tt>y</tt>/<tt>x</tt> using the signs of the two arguments to determine the quadrant of the result.</td></tr>
|
| 39 |
39 |
<tr><td>replace(<tt>a</tt>,<i>replacethis</i>,<i>withthat</i>)</td><td>replace <i>replacethis</i> with <i>withthat</i> in string <tt>a</tt></td></td>
|
| 40 |
40 |
<tr><td>regexp_replace(<tt>a</tt>,<i>replacethis</i>,<i>withthat</i>)</td><td>replace the regular expression <i>replacethis</i> with <i>withthat</i> in string <tt>a</tt></td></td>
|
| 41 |
|
<tr><td>substr(<tt>a</tt>,from,len)</td><td>len characters of string <tt>a</tt> starting from from (first character index is 1)</td></td>
|
|
41 |
<tr><td>substr(<tt>a</tt>,<i>from</i>,<i>len</i>)</td><td><i>len</i> characters of string <tt>a</tt> starting from <i>from</i> (first character index is 1)</td></td>
|
| 42 |
42 |
<tr><td><tt>a</tt> || <tt>b</tt></td><td>concatenate strings <tt>a</tt> and <tt>b</tt></td></tr>
|
| 43 |
43 |
<tr><td>$rownum</td><td>number current row</td></tr>
|
| 44 |
44 |
<tr><td>$area</td><td>area of polygon</td></tr>
|
| ... | ... | |
| 47 |
47 |
<tr><td>$id</td><td>feature id</td></tr>
|
| 48 |
48 |
<tr><td>$x</td><td>x coordinate of point</td></tr>
|
| 49 |
49 |
<tr><td>$y</td><td>y coordinate of point</td></tr>
|
| 50 |
|
<tr><td>xat(n)</td><td>x coordinate of nth point of a line (indices start at 0; negative values apply to the last index)</td></tr>
|
| 51 |
|
<tr><td>yat(n)</td><td>y coordinate of nth point of a line (indices start at 0; negative values apply to the last index)</td></tr>
|
|
50 |
<tr><td>xat(<tt>n</tt>)</td><td>x coordinate of <tt>n</tt>th point of a line (indices start at 0; negative values apply to the last index)</td></tr>
|
|
51 |
<tr><td>yat(<tt>n</tt>)</td><td>y coordinate of <tt>n</tt>th point of a line (indices start at 0; negative values apply to the last index)</td></tr>
|
| 52 |
52 |
<tr><td><tt>a</tt> ^ <tt>b</tt></td><td><tt>a</tt> raised to the power of <tt>b</tt></td></tr>
|
| 53 |
53 |
<tr><td><tt>a</tt> * <tt>b</tt></td><td><tt>a</tt> multiplied by <tt>b</tt></td></tr>
|
| 54 |
54 |
<tr><td><tt>a</tt> / <tt>b</tt></td><td><tt>a</tt> divided by <tt>b</tt></td></tr>
|
| 55 |
|
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