Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Use the following query to answer the question below it:

```sql
SELECT
    PAT_NAME "Patient",
    PAT_ID "Patient ID",
    PROV_NAME "Discharge Provider",
    PROV_NAME "Admitting Provider",
    DEPARTMENT_NAME "Discharge Department"
FROM PAT_ENC_HSP
    INNER JOIN PATIENT
        ON PAT_ENC_HSP.PAT_ID = PATIENT.PAT_ID
    INNER JOIN CLARITY_DEP
        ON PAT_ENC_HSP.DEPARTMENT_ID = CLARITY_DEP.DEPARTMENT_ID
    INNER JOIN CLARITY_SER
        ON PAT_ENC_HSP.ADMISSION_PROV_ID = CLARITY_SER.PROV_ID
    INNER JOIN CLARITY_SER
        ON PAT_ENC_HSP.DISCHARGE_PROV_ID = CLARITY_SER.PROV_ID
WHERE HOSP_DISCH_TIME IS NOT NULL
```

Which table from this query must be aliased?

Select one of the following:
- A. Patient
- B. PAT_ENC_HSP
- C. CLARITY_SER
- D. CLARITY_DEP
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Transcribed Image Text:Use the following query to answer the question below it: ```sql SELECT PAT_NAME "Patient", PAT_ID "Patient ID", PROV_NAME "Discharge Provider", PROV_NAME "Admitting Provider", DEPARTMENT_NAME "Discharge Department" FROM PAT_ENC_HSP INNER JOIN PATIENT ON PAT_ENC_HSP.PAT_ID = PATIENT.PAT_ID INNER JOIN CLARITY_DEP ON PAT_ENC_HSP.DEPARTMENT_ID = CLARITY_DEP.DEPARTMENT_ID INNER JOIN CLARITY_SER ON PAT_ENC_HSP.ADMISSION_PROV_ID = CLARITY_SER.PROV_ID INNER JOIN CLARITY_SER ON PAT_ENC_HSP.DISCHARGE_PROV_ID = CLARITY_SER.PROV_ID WHERE HOSP_DISCH_TIME IS NOT NULL ``` Which table from this query must be aliased? Select one of the following: - A. Patient - B. PAT_ENC_HSP - C. CLARITY_SER - D. CLARITY_DEP
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