INSERT

Returns the string str, with the substring beginning at position pos and len characters long replaced by the string newstr. Returns the original string if pos is not within the length of the string. Replaces the rest of the string from position pos if len is not within the length of the rest of the string. Returns NULL if any argument is NULL.

Syntax

INSERT(<str>, <pos>, <len>, <newstr>)

Arguments

Arguments	Description
<str>	The string.
<pos>	The position.
<len>	The length.
<newstr>	The new string.

Return Type

VARCHAR

Examples

SELECT INSERT('Quadratic', 3, 4, 'What');
+-----------------------------------+
| INSERT('Quadratic', 3, 4, 'What') |
+-----------------------------------+
| QuWhattic                         |
+-----------------------------------+

SELECT INSERT('Quadratic', -1, 4, 'What');
+---------------------------------------+
| INSERT('Quadratic', (- 1), 4, 'What') |
+---------------------------------------+
| Quadratic                             |
+---------------------------------------+

SELECT INSERT('Quadratic', 3, 100, 'What');
+-------------------------------------+
| INSERT('Quadratic', 3, 100, 'What') |
+-------------------------------------+
| QuWhat                              |
+-------------------------------------+

+--------------------------------------------+--------+
| INSERT('123456789', number, number, 'aaa') | number |
+--------------------------------------------+--------+
| 123456789                                  |      0 |
| aaa23456789                                |      1 |
| 1aaa456789                                 |      2 |
| 12aaa6789                                  |      3 |
| 123aaa89                                   |      4 |
| 1234aaa                                    |      5 |
| 12345aaa                                   |      6 |
| 123456aaa                                  |      7 |
| 1234567aaa                                 |      8 |
| 12345678aaa                                |      9 |
| 123456789                                  |     10 |
| 123456789                                  |     11 |
| 123456789                                  |     12 |
+--------------------------------------------+--------+