While adding the numbers contained in quotes, how MySQL evaluates if we write non-numeric text between numbers of a string?

Suppose if we are trying to add the numbers having non-numeric text between numbers of a string, then MySQL simply use the first number of that string to evaluate the addition along with a warning. Following example will exhibit this −

Example

mysql> Select '1525 * 2' + '200'As Total;
+-------+
| Total |
+-------+
| 1725  |
+-------+
1 row in set, 1 warning (0.00 sec)

From the above query, it is clear that MySQL uses only first number i.e. 1525 for evaluating the addition and ignores the non-numeric text.

Paul Richard

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Updated on: 20-Jun-2020

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