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    <p>Your tables appear small enough to do as I have done here. First, the inner-most query starts with all employees and did TWO left-joins immediately to the appointment table... By getting a MAX() of the appointments less than the date in question gets the "Previous Appointment", and getting the MIN() appointment AFTER the date in question gets the "Next Appointment". So now, for a single person, I have both their ID and possible previous and next appointments based on their specific times.</p> <p>Now, I take that result and re-join first to the appointment tables (left joined again) but this time based on same person (Terp_ID) AND their respective Previous and Next appointments date/time. This would only be a problem if you had multiple entries with the exact same date/time for a single person, and that would just result in multiple records.</p> <p>So now, I have each person with the specifics of previous and next appointments available.</p> <p>The rest is simple joining to the other tables to get only employee status of "Active", and the skill set of "Arabic" criteria (which I have at their respective JOIN criteria), otherwise you could just move these to a WHERE clause.</p> <p>As for the "Date/Time" basis of the query, I used @variable once so it could be used against both left-joins to appointments. Finally, I grabbed the respective fields you wanted. This SHOULD work, yet without your data, might need some tweaking.</p> <pre><code>SELECT EmpPrevNext.Employee_ID, EmpPrevNext.PrevApnt, EmpPrevNext.NextApnt, concat(Emp2.emp_firstname, ' ', Emp2.emp_lastname) as names, if ( Emp2.emp_gender = 1, 'Male', 'Female' ) as emp_gender, Emp2.emp_work_telephone, Emp2.emp_hm_telephone, Emp2.emp_work_email, Emp2.custom7, Emp2.city_code, Emp2.provin_code, cast( concat( DATE_FORMAT(PriorApp2.app_datetime, '%H:%i'), ' ', PriorApp2.app_facility) as char(100)) as PriorAppointment, cast( concat( DATE_FORMAT(NextApp2.app_datetime, '%H:%i'), ' ', NextApp2.app_facility) as char(100)) as NextAppointment, EStat.`name` as EmployeeStatus, Skill.`name` as SkillName FROM ( SELECT Emp.Employee_ID, MAX( PriorApp.app_DateTime ) as PrevApnt, MIN( NextApp.app_DateTime ) as NextApnt from ( select @DateBasis := '06/26/13 at 3:20 PM' ) sqlvars, hs_hr_employee as Emp LEFT JOIN li_appointments.li_appointments as PriorApp ON Emp.Employee_ID = NextApp.Terp_ID AND PriorApp.app_DateTime &lt;= @DateBasis LEFT JOIN li_appointments.li_appointments as NextApp ON Emp.Employee_ID = NextApp.Terp_ID AND NextApp.app_DateTime &gt; @DateBasis group by Emp.Employee_ID ) EmpPrevNext LEFT JOIN li_appointments.li_appointments as PriorApp2 ON EmpPrevNext.Employee_ID = PriorApp2.Terp_ID AND EmpPrevNext.PrevApnt = PriorApp2.app_DateTime LEFT JOIN li_appointments.li_appointments as NextApp2 ON EmpPrevNext.Employee_ID = NextApp2.Terp_ID AND EmpPrevNext.NextApnt = NextApp2.app_DateTime JOIN hs_hr_employee as Emp2 ON EmpPrevNext.Employee_ID = Emp2.Employee_ID JOIN orangehrm_li.ohrm_employment_status as EStat ON Emp2.Emp_Status = EStat.ID AND EStat.`name` = 'Active' JOIN hs_hr_emp_skill as EmpSkill ON Emp2.emp_number = EmpSkill.emp_number JOIN ohrm_skill as Skill on EmpSkill.skill_id = Skill.id AND Skill.`name` like '%Arabic%' order by rand(); </code></pre> <p>Make sure your appointment table has an index on (Terp_ID, app_datetime )</p>
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