Lage nicht aus und Datumswerte aus der Datenbank zu erhalten unter Verwendung von PHP-MySQL

Question

ich PROJECT versuche, Activity, Dauer, Mitarbeiternamen mit todate, from, ProjectID, aber ich bin nicht in der Lage hier meinen Code zu bekommen und Schema

select ohrm_project.project_id as ohrmprojectid,ohrm_project.customer_id,ohrm_project.name as ohrm_projectname,ohrm_timesheet.timesheet_id as ohrmtimesheet_id, ohrm_timesheet.employee_id as ohrmtimesheetemployeeid,ohrm_timesheet_item.*, ohrm_project_activity.activity_id as ohrmprojectactivityid, ohrm_project_activity.project_id as ohrmprojectactivityprojectid, ohrm_project_activity.name as activityname,hs_hr_employee.* from ohrm_project,ohrm_timesheet,ohrm_timesheet_item,ohrm_project_activity,hs_hr_employee where ohrm_timesheet_item.project_id=2 and ohrm_timesheet_item.activity_id=ohrm_project_activity.activity_id and ohrm_timesheet_item.employee_id=hs_hr_employee.emp_number and ohrm_timesheet_item.employee_id=hs_hr_employee.emp_number and ohrm_timesheet_item.date between 2016-03-31 and 2016-04-04 

click here to see image

click here to see image

Answer 1

Daten würden als string s behandelt werden. Wickeln Sie sie mit quote s.

ohrm_timesheet_item.date between '2016-03-31' and '2016-04-04' 

Answer 2

verwenden:

SELECT ohrm_project.project_id AS ohrmprojectid, 
    ohrm_project.customer_id, 
    ohrm_project.name AS ohrm_projectname, 
    ohrm_timesheet.timesheet_id AS ohrmtimesheet_id, 
    ohrm_timesheet.employee_id AS ohrmtimesheetemployeeid, 
    ohrm_timesheet_item.*, 
    ohrm_project_activity.activity_id AS ohrmprojectactivityid, 
    ohrm_project_activity.project_id AS ohrmprojectactivityprojectid, 
    ohrm_project_activity.name AS activityname, 
    hs_hr_employee.* 
FROM ohrm_project, 
    ohrm_timesheet, 
    ohrm_timesheet_item, 
    ohrm_project_activity, 
    hs_hr_employee 
WHERE ohrm_timesheet_item.project_id=2 
    AND ohrm_timesheet_item.activity_id=ohrm_project_activity.activity_id 
    AND ohrm_timesheet_item.employee_id=hs_hr_employee.emp_number 
    AND ohrm_timesheet_item.employee_id=hs_hr_employee.emp_number 
    AND ohrm_timesheet_item.date BETWEEN '2016-03-31' AND '2016-04-04'