I'm trying to get the position of a file extension in a given string using instr(). This could be a number of possible extensions, so I need search for multiple substrings (eg. "jpg", "mp4"...).

I've tried an OR statement, eg. instr(string,"jpg" OR "mp4"), with no luck.

```
SELECT instr(column, "jpg") FROM table;

```

Any ideas for solutions or alternatives would be welcome.