A dense index has an index for only some of the search values True False
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A: the answer is given below
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Q: Create LessonSchedule table with FK constraints Two tables are created: Horse with columns:
A: Answer has been explained below:-
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Q: Create LessonSchedule table with FK constraints in mysql database Two tables are created: Horse…
A: The solution for the above given question is given below:
Q: create a unique Key Index
A: The CREATE UNIQUE INDEX command forms a exclusive index on a table where no duplicate values…
Q: Place the number of the right column item next to the corresponding left column item.
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QUESTION 6
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A dense index has an index for only some of the search values
True
False
Step by step
Solved in 2 steps
- please find: indexes examined and value returnedINFO 2303 Database Programming Assignment : PL/SQL Practice Note: PL/SQL can be executed in SQL*Plus or SQL Developer or Oracle Live SQL. Question: Write an anonymous PL/SQL block that will delete all patients for doctors that works in the Family Practice Verify that patients have been deleted accordingly. Then do a select * from patients where doc_id = (select doc_id from doctor where area = ‘Family Practice’. You should get no rows. Patietn table: CREATE TABLE PATIENT(PT_ID NUMBER(3),PT_LNAME VARCHAR2(15),PT_FNAME VARCHAR2(15),PTDOB DATE,DOC_ID NUMBER(3),NEXTAPPTDATE DATE,LASTAPPTDATE DATE,CONSTRAINT PATIENT_PT_ID_PK PRIMARY KEY (PT_ID),CONSTRAINT PATIENT_DOC_ID_FK FOREIGN KEY(DOC_ID)REFERENCES DOCTOR); INSERT INTO patient VALUES(168, 'James', 'Paul', TO_DATE('14-MAR-97'), 432, TO_DATE('01-JUL-03'), TO_DATE('01-JUN-03'));INSERT INTO patient VALUES(331, 'Anderson', 'Brian', TO_DATE('06-MAR-48'), 235,TO_DATE('01-JUL-03'), TO_DATE('01-JUN-03'));INSERT INTO patient…Second normal form says: a. No nonkey columns depend on another nonkey column. b. Every column that's not part of the primary key is fully dependent on the primary key. c. Eliminate repeated fields. d. None of the above
- INFO 2303 Database Programming Assignment : PL/SQL Practice Note: PL/SQL can be executed in SQL*Plus or SQL Developer or Oracle Live SQL. Write an anonymous PL/SQL block that will delete all patients for doctors that works in the Family Practice Verify that patients have been deleted accordingly. Then do a select * from patients where doc_id = (select doc_id from doctor where area = ‘Family Practice’. You should get no rows.When a SELECT operation WHERE clause is made up of several conditions connected with the OR operator this is called what? Disjunctive condition Uniformly distributed Hash bucket Conjunctive conditionWhat is a NULL value?
- Delete the index named ITEM_INDEX3.What happens to the existing rows of a table if the DEFAULT value of a column is changed?SBN Title Author 12345678 The Hobbit J.R.R. Tolkien 45678912 DaVinci Code Dan Brown Your student ID DBS311 Your Name use the following statement to Write a PL/SQL Function that accepts 4 parameters, 2 strings representing students names, and 2 integers representing the marks they received in DBS311. The function will determine which student had the higher mark and return the name of the student. If the marks were the same, then return the word "same" and return "error" if an error occurs or the calculation can not be determined.