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Category > Computer Science Posted 16 Dec 2017 My Price 10.00

createan indexon the Project_Namecolumn.

I'm working on the following questions but I their something wrong with my coding?

 

can someone help me

 

 

4.Write the codeto createa new tableas shown below and createan indexon the Project_Namecolumn.

 

 

Table Name:Manager

 

ColumnName:

ManagerID

Manager_Name

Project_ID

Project_Name

KeyType:

PrimaryKey

 

 

 

Null/Unique:

Not Null

 

Not Null

Not Null

FKTable:

 

 

 

 

FKColumn:

 

 

 

 

DataType:

INTEGER

VARCHAR

INTEGER

VARCHAR

MaxLength:

7

30

7

30

 

CREATE TABLE Manager (

       ManagerID INT (7) NOT NULL,

       Manager_Name VARCHAR (30),

       Project_ID INT (7) NOT NULL,

       Project_Name VARCHAR (30) NOT NULL,

       PRIMARY KEY (ManagerID)

         );

 

 

 

 

CREATE INDEX index_Project_Name ON Manager (Project_Name);

 

5.Write the codeto createan indexon the Project_IDcolumn of the Manager table.

 

            CREATE INDEX index_Project_ID ON Manager (Project_ID);

 

6.Write the codeto removethe indexon the Project_Name column of the Manager table.

 

MYSQL:  

             ALTER TABLE Manager

             Drop INDEX index_Project_Name; 

 

 

 

SQL Server:

         Drop INDEX Manager.index_Project_Name;

 

 

 

7.Write the codeto createa new tableas shown below and createasequenceon the Patient_ID column.

 

Table Name:Patient

 

ColumnName:

Patient_ID

P_Name

 

 

KeyType:

PrimaryKey

 

 

 

Null/Unique:

Not Null, Unique

NOT NULL

 

 

FKTable:

 

 

 

 

FKColumn:

 

 

 

 

DataType:

INTEGER

VARCHAR

 

 

MaxLength:

7

30

 

 

 

            CREATE TABLE Patient (

              Patient_ID INT (7) NOT NULL UNIQUE PRIMARY KEY,

             P_Name VARCHAR (30) NOT NULL

            );

            CREATE INDEX index_Patient_ID ON Patient(Patient_ID);

 

 

 

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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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