Mysql -- Last 30 days

Edit: Changed query as per OP

select * from cc_open_incident_viewWHERE date between (CURDATE() - INTERVAL 1 MONTH ) and CURDATE()

Previous Answer:

If date is saved as date then use this

select * from cc_open_incident_viewWHERE date >= (CURDATE() - INTERVAL 1 MONTH )

If date is saved as string then use this (assuming it is in dd/mm/yyyy ...

select * from cc_open_incident_viewWHERE STR_TO_DATE(date ,''%d/%m/%y %h:%i:%s')>= (CURDATE() - INTERVAL 1 MONTH )

SELECT  *FROM    cc_open_incident_viewWHERE   yourdatetimecolumn BETWEEN CURDATE() - INTERVAL 30 DAY AND CURDATE()

Also note that CURDATE() returns only the DATE portion of the date, so if you store yourdatetimecolumn as a DATETIME with the time portion filled, this query will not select the today's records.

In this case, you'll need to use NOW instead:

SELECT  *FROM    cc_open_incident_viewWHERE   yourdatetimecolumn BETWEEN NOW() - INTERVAL 30 DAY AND NOW()

If the datatype is datetime or timestamp (and you want to check the time):

SELECT * FROM yourtable WHERE yourdatetimeortimestampcolumn <= NOW() - INTERVAL 1 MONTH;

If your column datatype is date:

SELECT * FROM yourtable WHERE yourdatecolumn <= CURRENT_DATE() - INTERVAL 1 MONTH;

If your column is a string, you will need to convert it first by doing:

SELECT STR_TO_DATE('5/16/2011 20:14 PM', '%c/%e/%Y %H:%i');

http://dev.mysql.com/doc/refman/5.7/en/date-and-time-functions.html#function_str-to-date