I am learning how to write SQL server queries. i have an entity model which i am attaching.
Write the SQL to produce the following report on the vital signs data. Order by patient number and visit number. PatientNo VisitNo VisitDate Systolic Diastolic List the patient number and initials for every patient that never had a headache Produce the following report, showing each adverse event and the details of the medication taken for that adverse event. Include all adverse events, even those for which no medication was taken. PatientNo AE Med MedDate Produce a report showing the number of days between successive visits. Leave the column blank for the first visit for each patient. The results should be as follows: PatientNo VisitNo VisitDate DaysSincePrevious 1 1 12-Jan-2005 1 2 23-Jan-2005 11 1 3 28-Jan-2005 5 2 1 01-Feb-2005 2 2 08-Feb-2005 7 4 1 03-Feb-2005 4 2 08-Feb-2005 5
List the distinct set of medications taken in the study. Beware – this is not as trivial as it looks. Extra credit for being careful. List the average systolic blood pressure (Sys) for all patients who ever had an adverse event of “High BP” 7. List all patients who had a headache more than once
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