SophiaPretty

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Category > Computer Science Posted 16 Dec 2017 My Price 10.00

create an index on the Project_Name column

I need help with my homework assignment. First 3 questions are written and should be answered in 3-5 sentences. Questions 4-7 is writing SQL queries.ISM 218 - Database Systems Assignment #10 Questions 1-3 are worth 3 points each and should be answered in 3-5 sentences. 1. What is an index? How is used in a database? Which type of column would make an ideal index? 2. Can an index be created in any table? Why would you NOT want to create an index in a table? 3. What is a sequence? Why are sequences used? What are some issues that occur when using sequences? Questions 4-7 are worth 4 points each. 4. Write the code to create a new table as shown below and create an index on the Project_Name column. Table Name: Manager Column Name: ManagerID Manager_Name Project_ID Project_Name Key Type: Primary Key Null/Unique: Not Null Not Null Not Null FK Table: FK Column: Data Type: INTEGER VARCHAR INTEGER VARCHAR Max Length: 7 30 7 30 5. Write the code to create an index on the Project_ID column of the Manager table. 6. Write the code to remove the index on the Project_Name column of the Manager table. 7. Write the code to create a new table as shown below and create a sequence on the Patient_ID column. Table Name: Patient Column Name: Patient_ID P_Name Key Type: Primary Key Null/Unique: Not Null, Unique NOT NULL FK Table: FK Column: Data Type: INTEGER VARCHAR Max Length: 7 30

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SophiaPretty
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Status NEW Posted 16 Dec 2017 02:12 PM My Price 10.00

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