added Übungszettel 11

2025-02-13 14:58:45 +01:00
parent 25bf599c6c
commit 66c3899154
16 changed files with 4976 additions and 2 deletions
--- a/studenttables/05_create_student_keys.sql
+++ b/studenttables/05_create_student_keys.sql
@@ -0,0 +1,118 @@
+ALTER TABLE INSTRUCTOR
+ ADD CONSTRAINT INST_PK PRIMARY KEY 
+  (INSTRUCTOR_ID)
+;
+
+ALTER TABLE GRADE
+ ADD CONSTRAINT GR_PK PRIMARY KEY 
+  (STUDENT_ID
+  ,SECTION_ID
+  ,GRADE_TYPE_CODE
+  ,GRADE_CODE_OCCURRENCE)
+;
+
+ALTER TABLE GRADE_TYPE
+ ADD CONSTRAINT GRTYP_PK PRIMARY KEY 
+  (GRADE_TYPE_CODE)
+;
+
+ALTER TABLE GRADE_CONVERSION
+ ADD CONSTRAINT GRCON_PK PRIMARY KEY 
+  (LETTER_GRADE)
+;
+
+ALTER TABLE GRADE_TYPE_WEIGHT
+ ADD CONSTRAINT GRTW_PK PRIMARY KEY 
+  (SECTION_ID
+  ,GRADE_TYPE_CODE)
+;
+
+ALTER TABLE SECTION
+ ADD CONSTRAINT SECT_PK PRIMARY KEY 
+  (SECTION_ID)
+;
+
+ALTER TABLE COURSE
+ ADD CONSTRAINT CRSE_PK PRIMARY KEY 
+  (COURSE_NO)
+;
+
+ALTER TABLE ENROLLMENT
+ ADD CONSTRAINT ENR_PK PRIMARY KEY 
+  (STUDENT_ID
+  ,SECTION_ID)
+;
+
+ALTER TABLE STUDENT
+ ADD CONSTRAINT STU_PK PRIMARY KEY 
+  (STUDENT_ID)
+;
+
+ALTER TABLE ZIPCODE
+ ADD CONSTRAINT ZIP_PK PRIMARY KEY 
+  (ZIP)
+;
+
+ALTER TABLE SECTION 
+ ADD ( CONSTRAINT SECT_SECT2_UK UNIQUE 
+  (SECTION_NO
+  ,COURSE_NO))
+;
+
+ALTER TABLE INSTRUCTOR ADD CONSTRAINT
+ INST_ZIP_FK FOREIGN KEY 
+  (ZIP) REFERENCES ZIPCODE
+  (ZIP)
+;
+
+ALTER TABLE GRADE ADD CONSTRAINT
+ GR_ENR_FK FOREIGN KEY 
+  (STUDENT_ID
+  ,SECTION_ID) REFERENCES ENROLLMENT
+  (STUDENT_ID
+  ,SECTION_ID) ADD CONSTRAINT
+ GR_GRTW_FK FOREIGN KEY 
+  (SECTION_ID
+  ,GRADE_TYPE_CODE) REFERENCES GRADE_TYPE_WEIGHT
+  (SECTION_ID
+  ,GRADE_TYPE_CODE)
+;
+
+ALTER TABLE GRADE_TYPE_WEIGHT ADD CONSTRAINT
+ GRTW_GRTYP_FK FOREIGN KEY 
+  (GRADE_TYPE_CODE) REFERENCES GRADE_TYPE
+  (GRADE_TYPE_CODE) ADD CONSTRAINT
+ GRTW_SECT_FK FOREIGN KEY 
+  (SECTION_ID) REFERENCES SECTION
+  (SECTION_ID)
+;
+
+ALTER TABLE SECTION ADD CONSTRAINT
+ SECT_INST_FK FOREIGN KEY 
+  (INSTRUCTOR_ID) REFERENCES INSTRUCTOR
+  (INSTRUCTOR_ID) ADD CONSTRAINT
+ SECT_CRSE_FK FOREIGN KEY 
+  (COURSE_NO) REFERENCES COURSE
+  (COURSE_NO)
+;
+
+ALTER TABLE COURSE ADD CONSTRAINT
+ CRSE_CRSE_FK FOREIGN KEY 
+  (PREREQUISITE) REFERENCES COURSE
+  (COURSE_NO)
+;
+
+ALTER TABLE ENROLLMENT ADD CONSTRAINT
+ ENR_STU_FK FOREIGN KEY 
+  (STUDENT_ID) REFERENCES STUDENT
+  (STUDENT_ID) ADD CONSTRAINT
+ ENR_SECT_FK FOREIGN KEY 
+  (SECTION_ID) REFERENCES SECTION
+  (SECTION_ID)
+;
+
+ALTER TABLE STUDENT ADD CONSTRAINT
+ STU_ZIP_FK FOREIGN KEY 
+  (ZIP) REFERENCES ZIPCODE
+  (ZIP)
+;