Math Numeric Functions MySQL Tutorial

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  4. RAND(20)
SELECT RAND(20);
+------------------+
| RAND(20)         |
+------------------+
| 0.15888261251047 |
+------------------+
1 row in set (0.00 sec)
mysql>
mysql> SELECT RAND(20);
+------------------+
| RAND(20)         |
+------------------+
| 0.15888261251047 |
+------------------+
1 row in set (0.00 sec)
mysql>