Difference between revisions of "SQL Examples"

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=== Join Query including Unit-Of-Measurement ===
=== Join Query including Unit-Of-Measurement ===


[[File:ExampleLab.jpg|thumb|left]]
[[File:ExampleLab.jpg|frameless|left]]


  SELECT caseID,Offset,LaboratoryValue,d_references.ReferenceValue as LaboratoryName, d_references.ReferenceUnit as LabUnit FROM `laboratory` LEFT JOIN d_references ON d_references.ReferenceGlobalID=laboratory.LaboratoryID;
  SELECT caseID,Offset,LaboratoryValue,d_references.ReferenceValue as LaboratoryName, d_references.ReferenceUnit as LabUnit FROM `laboratory` LEFT JOIN d_references ON d_references.ReferenceGlobalID=laboratory.LaboratoryID;

Revision as of 10:02, 2 November 2022

While the SICdb dataset is provided as csv raw data, it is designed to be used in a a relational database management system. Refer to Get Started for further information building up the database and corresponding software. Our software also includes one-click SQL codes for hundreds of fields like creatinine on day one/two/..., max/min/Average lactate and much more.


Using Referenced Fields

One of the most important tasks is decoding the referenced fields. While our Software does this automatically the database design makes it also quite simple in raw SQL code.

Simple Join Query

ExampleJoin.jpg
 SELECT CaseID, d_references.ReferenceValue as Survived FROM `cases` LEFT JOIN d_references ON d_references.ReferenceGlobalID=cases.HospitalDischargeType;





Join Query including Unit-Of-Measurement

ExampleLab.jpg
SELECT caseID,Offset,LaboratoryValue,d_references.ReferenceValue as LaboratoryName, d_references.ReferenceUnit as LabUnit FROM `laboratory` LEFT JOIN d_references ON d_references.ReferenceGlobalID=laboratory.LaboratoryID;

Subqueries to select select

 SELECT `cases`.`CaseID` AS CaseID ,( SELECT Max(laboratory.LaboratoryValue) FROM laboratory WHERE laboratory.CaseID = cases.CaseID AND laboratory.LaboratoryID = 367 AND Offset >= 0  AND Offset < 7 * 86400 ) AS MaximumCreatinineInFirstWeek FROM cases