## Syntax
```mermaid
%%{init: {
'theme': 'base',
'flowchart': { 'padding': '7', 'nodeSpacing': '20', 'rankSpacing': '20' },
'themeVariables': {
'fontSize': '11px',
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flowchart LR
Start((START)) --> MONTHS_BETWEEN[MONTHS_BETWEEN]:::quoted
MONTHS_BETWEEN --> End((END))
```
## Purpose
The `MONTHS_BETWEEN` SQL functions gets the number of months between two dates. The fractional part is determined using a 30-day month length.
Parameters:
- Date 1: first date.
- Date 2: second date.
Returns: A decimal with the number of months and fractional part. Negative when date 2 is before date 1. Positive otherwise.
Introduced in 17.32