You are writing a query about hospital encounters using the following FROM clause: FROM PAT_ENC HSP peh CLARITY_DEP dep ON peh.DEPARTMENT_ID = dep.DEPARTMENT_ID DEPARTMENT_ID is never NULL in either table, and for every DEPARTMENT_ID in PAT_ENC_HSP, there is a matching DEPARTMENT_ID in CLARITY_DEP. Assuming no additional filtering, which join type must you use? A. You must use either an INNER JOIN or a LEFT OUTER JOIN, and either would return the same results B. You must use an INNER JOIN C. You must use a LEFT OUTER JOIN D. You must use a CROSS JOIN

You are writing a query about hospital encounters using the following FROM clause: FROM PAT_ENC HSP peh CLARITY_DEP dep ON peh.DEPARTMENT_ID = dep.DEPARTMENT_ID DEPARTMENT_ID is never NULL in either table, and for every DEPARTMENT_ID in PAT_ENC_HSP, there is a matching DEPARTMENT_ID in CLARITY_DEP. Assuming no additional filtering, which join type must you use? A. You must use either an INNER JOIN or a LEFT OUTER JOIN, and either would return the same results B. You must use an INNER JOIN C. You must use a LEFT OUTER JOIN D. You must use a CROSS JOIN

Np Ms Office 365/Excel 2016 I Ntermed

1st Edition

ISBN:9781337508841

Author:Carey

Publisher:Carey

Chapter3: Performing Calculations With Formulas And Functions

Section: Chapter Questions

Problem 3.13CP

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Use the following quert to answer the question below it: SELECT *FROM HSP_ACCT_CVG_LISTLEFT OUTER JOIN CLARITY_EMPON COVERAGE.PAYOR_ID = CLARITY_EMP.PAYOR_IDLEFT OUTER JOIN COVERAGEON HSP_ACCT_CVG_LIST.COVERAGE_ID = COVERAGE.COVERAGE_ID Why does this query fail to run?
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JOIN TABLES One row in the PAT_ENC table represents one patient encounter. One row in the ORDER MED table represents one medication order. One patient encounter can have many medication orders but one medication order can only have one patient encounter. In other words, the cardinality of this PAT_ENC to ORDER_MED relationship is one-to- many. You start a query with PAT_ENC. You then add ORDER_MED using an inner join. What is true about the granularity of the result set before and after adding the ORDER_MED table? SELECT ONE OF THE FOLLOWING A. The granularity stays at one row per patient encounter. B. The granularity stays at one row per medication order. C. The granularity changes from one row per patient encounter to one row per medication order on an encounter. D. The granularity changes from one row per medication order to one row per patient encounter.
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