So i'm trying to get from sql query all invoices that has the due date greater than 30 days ( 1 month ) compared to the current date and i ge the following errors

`SELECT * from Manager\Models\ProjectInvoices where recurring = 1 and NOW() >= DATEADD('month',1,due)`

`SQLSTATE[42000]: Syntax error or access violation: 1305 FUNCTION rhino.DATEADD does not exist`

`SELECT * from Manager\Models\ProjectInvoices where recurring = 1 and NOW() >= due + INTERVAL 1 MONTH`

`Syntax error, unexpected token INTEGER(1), near to ' MONTH', when parsing: SELECT * from Manager\Models\ProjectInvoices where recurring = 1 and NOW() >= due + INTERVAL 1 MONTH (101)`

`SELECT * from Manager\Models\ProjectInvoices where recurring = 1 and NOW() >= due + INTERVAL +1 MONTH`

`Syntax error, unexpected EOF`

## can anyone help out :?