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COPYRIGHT NOTICE
All ideas and information contained in this document are the intellectual property ofEducation and Research Department, Infosys Technologies Limited. This document is
not for general distribution and is meant for use only for the person they arespecifically issued to. This document shall not be loaned to anyone, within or outsideInfosys, including its customers. Copying or unauthorized distribution of thisdocument, in any form or means including electronic, mechanical, photocopying orotherwise is illegal.
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Document Revision History
Version Date Author(s) Reviewer(s) Comments
1.0 21-May-2007 N.Vijayakalyani,Rituza Khare Ajit Ravindran Nair Initial Draft
2.0 12-Jul-2007 Nihar Bhatt,Pragati Sheel
N.Vijayakalyani
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BackgroundThis document contains the assignments to be completed as part of the hands on for thesubject ORACLE (Course code: ).
Note:All assignments in this document must be completed in thesequence in this document in order to complete the course.
Assignment 1Objective:To learn how to connect to TOAD
Background:Although on your machine TOAD is pre configured but please follow these stepsto get a feel of how actually this has been configured.
Step 1:
Reach TOAD via :Start->All programs->Quest Software->TOAD for Oracle->Toad for Oracle 9.0
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Step 2:Getting connected to Oracle through TOAD supplying your Userid ,Password andHoststring
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Step 3:
After getting connected to Oracle through TOAD the following screen would appear.
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Summary:You have learnt how to get connected to Oracle using TOAD
Note:ENRTOAD must be showing your Oracle ID.(eg: TJan07LC1Comp55)
Assignment 2Objective:To learn how to create tables, apply constraints and generate ER Diagram usingTOAD
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Create the following tablesEMP
Column name Data type Description
EMPNO Number(5) Employee number
ENAME Varchar2(15) Employee name
SAL Number(8,2) Basic Salary
MGR Number(5) Managers Emp. number
DEPTNO Number(3) Department Number
PROJNO Number(3) Project Number
DEPT
Column name Data type Description
DEPTNO Number(3) Department number
DNAME Varchar2(15) Department name
LOC Varchar2(15) Location of department
PROJECT
Column name Data type Description
PROJNO Number(3) Project number
PNAME Varchar2(15) Project name
TEAMSIZE Number(3) Size of the project team
Step 1:Goto Database >>Create >>TableYou will get the following screen.
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Step 2:After adding all the columns to the EMP table the following screen would appear.It shows all the 6 columns of the EMP table with their sizes as well.
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Step 3:
To add constraints to the already existing columns click on the Constraints tabof the sameform.Click on Add Constraint tab of the form.The following screen will appear.
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Step 4:
To add the Primary key constraint select the column on which you want to set the property ofprimary key.The selected table column will appear in the Constraint columns.Note:You should have selected only the required columns for the desired constraint.Constraint name will be generated by the tool.The primary key option would have been set to Yes.
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Step 3:
To add check constraint to the Sal column click on the Constraints tab in the window andchoose Check constraint.It will open a Constraint textwindow to write the logic of check constraint.The check constraint counter will start reflecting the count 1.
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Step 4:
To check all the applied constraints on the columns go to the database menu and chooseSchema Browser or the same icon will be available in the tool bar.
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Step 5:The following screen would appear.The left frame shows the created tables list.As EMP is the only table that is created so far, so only it will appear in the list.
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Step 6:
After the creation of all the three tables the following screen would be seen with the leftframe having in list of all the 3 tables.Notice the Table tab in the left frame is selected.
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Step 7:After the creation of a table the constraints on its columns can be checked by clicking on theConstraints tab on the left frame.Then select on any constraint name, the right frame will reflect its details.
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Step 8:
To check for the ER diagram of the relational schema, click on the Database >> Report >> ERDiagram.
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Step 9:Click on the new ER Diagram(the first icon which is shown tabbed).
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Step 10:Select your UserID in the schema and EMP/EMPLOYEE table name in the table list.Let all the check boxes be ticked.Click on ok.
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Step 11:The following ER Diagram must appear.
It shows the relationship of EMPLOYEE table with all the other tables in the database viaforeign keys.
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Step 12:
Save the ERD of the schema by clicking on the save icon at the top of the frame.It will ask for the name ,save it as bitmap file with the extension .bmp.
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Assignment 3Objective:To learn how to create sequence, view and trigger using TOAD
Step 1:Go to Database>>Create>>Sequence option.
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The following window will appear.
Step 2:Supply the name of the sequence, the start value and the increment value.
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Step 3:
To check for the existing Sequences got to Databse>>Schema Browser or you can click on itsicon in the tool bar.
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Step 4:
Click on the Sequence tab in the left frame.On the right frame it will reflect all the details of the selected sequence.
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Step 1: Select View option from Database >> Createmenu. You will see the followingwindow.
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Step 2: When it is prompting for View Name, type the view name and type the followingquery in the text window provided.
SELECT deptno, COUNT (empno) as NoofEmpFROM emp
GROUP BY deptno
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Step 3: Click on Validate Query, and then you will see Query parsed OK, if the query runswithout any errors.
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Step 4: Then click on OK button.
Objective: To create a trigger using TOAD.Step 1: Select the Trigger option from Database >> Create menu, as shown in the snap shotbelow.
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Step 2: Provide the Trigger name, select the Schema name and Table name on which thetrigger is to be created.
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Step 3: Also click on the Fire when, Fire onand For eachoptions as given below
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Step 4: Select the When Clausewindow and provide the condition for the when clause asgiven below.
NEW.job = SALESMAN
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Step 5: Provide the trigger body as given below.BEGIN
IF INSERTINGTHEN :NEW.comm := 0;ELSIF :OLD.comm IS NULL
THEN :NEW.comm := 0;ELSE:NEW.comm := :OLD.comm + 0.12;
END IF;
And click on OK button.
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Step 6: Finally you can see the trigger created from Schema browser.
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Assignment 4Objective:To learn how to create a Store Procedure, SP template and how to call a SP froman anonymous block using TOAD.
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Step 1:Go to Database>>Schema Browser option.The following window will appear.Select the Treeview from the Browser Style.
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The following window will appear.
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Step 2:
Expand My Schema tab
Step 3:To see the existing Stored Procedures expand the tab of Procedure.
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Step 4:
Right click on the Procedure Tab and go for View/Edit package save option
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Step 5:
Go for the first procedure tab file path
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Step 6:
Click on edit file and the file opensWith the following code
CREATE OR REPLACE PROCEDURE %YourObjectname% IStmpVar NUMBER;/******************************************************************************
NAME: %YourObjectName%PURPOSE:
REVISIONS:Ver Date Author Description
--------- ---------- --------------- ------------------------------------1.0 %SYSDATE% %USERNAME% 1. Created this procedure.
NOTES:
Automatically available Auto Replace Keywords:Object Name: %YourObjectName%Sysdate: %SYSDATE%Date and Time: %DATE%, %TIME%, and %DATETIME%
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Username: %USERNAME% (set in TOAD Options, Procedure Editor)Table Name: %TableName% (set in the "New PL/SQL Object" dialog)
******************************************************************************/BEGIN
tmpVar := 0;
EXCEPTIONWHEN NO_DATA_FOUND THENNULL;
WHEN OTHERS THEN-- Consider logging the error and then re-raiseRAISE;
END %YourObjectName%;
Step 6:Let the file remain openThen click on add to add a new SP template
Step 8:
Fill in the following details
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Path will be the same as old Procedure template path and name of file will be the name ofthe new SP template.
Step 9:Try editing the new file.The following screen appears.Click on yes to save the file,as it does not exist it will create a new file with this name andsave it.
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Step 10:
Copy the contents of the old Procedure template in this new file with the following changeshighlighted in blue color
CREATE OR REPLACE PROCEDURE %YourObjectname%(pNum1 In number,pNum2 IN Number,pRes Out Number)IStmpVar NUMBER;/******************************************************************************
NAME: %YourObjectName%
PURPOSE:
REVISIONS:Ver Date Author Description--------- ---------- --------------- ------------------------------------1.0 %SYSDATE% %USERNAME% 1. Created this procedure.
NOTES:
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Automatically available Auto Replace Keywords:Object Name: %YourObjectName%Sysdate: %SYSDATE%Date and Time: %DATE%, %TIME%, and %DATETIME%Username: %USERNAME% (set in TOAD Options, Procedure Editor)Table Name: %TableName% (set in the "New PL/SQL Object" dialog)
******************************************************************************/BEGIN
tmpVar := 0;EXCEPTIONWHEN NO_DATA_FOUND THENNULL;
WHEN OTHERS THEN-- Consider logging the error and then re-raiseRAISE;
END %YourObjectName%;
Step 11:
Apply the changes and say ok.Now this will be the new Procedure template in addition to the old procedure template.
Step 12:
Now Come back to the schema browser and right click on the procedure tab to create a newSP.
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Step 13:
Fill in the following details and choose the new proc template as directed below.
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Step 14:
Save it.After this the following screen would appear.
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Complete the procedure body by adding the following stmt in it.
pRes:=pNum1 +pNum2;
Now execute the procedure by pressing F11
Step 15:
After the Procedure is created, create an anonymous block for calling it.declare
Result number;
begin
TryProc(&a,&b,Result);
dbms_output.put_line('The result is'||Result);end;
Step 16:Now execute this SP.Set serveroutput on.It will ask for 2 inputs at the run timeSupply the following data
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Step 17:
After execution the following output will appear in the output window.
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Assignment 5Objective:To learn how to use Debug options of TOAD
Step 1:
In TOAD Select DatabaseSchema BrowserSelect Procedures from Schema Browser
Step 2:Select the Procedure to be debugged.
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Step 3:
As shown in the figure below, load the procedure in the Procedure editor.
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Once it is loaded, you can see a new window for the procedure editor.
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Step 4:Before using any debug options, we need to set the values for input parameters of the
procedure selected. In Debug menu select Set Parameters options.
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Step 5 :Now you can see a new window opened and the parameters of the procedure are listed. One
by one we need to set the values for all IN and INOUT parameters. The following picturesillustrate this method for two input parameters (pNum1 and pNum2).
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Step 6:Once the parameters are set with the values, the procedure is ready for debug operation.Here we will see how to set a break point. Go to Debug menu in Procedure editor, and selectSet Breakpoint option after placing the cursor in the appropriate line. Debug SetBreakpoint.
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Once the Breakpoint is set, it will be highlighted with a red line, as shown below.
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Step 7:We can add watches too. Go to Debug menu and select Watches option.
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The Watch window will be opened as shown below. Here, select the add watch optionavailable in the watch window. (See the below snap shot)
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Once you click on Add watch option, a window will be popped and it will prompt forexpression to be watched. Type an expression, or variable to be watched. The following snap
shots illustrate, to add watches for variables pNum1 and pNum2.
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Please find below, the snap shot to display the added watch variables in the watch window.(It shows process not accessible because we have not yet started the debug/ trace operation)
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Step 8:
Now we can start tracing the execution of the procedure. Go to Debug menu and select TraceInto option. DebugTrace Into.
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It will prompt with the following message Do you want to compile referenced objects withDebug information? This process can take several seconds. Click on Yes.
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The Tracing is started and it will show the tracing line with highlighted color.
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Every time press shift+F7 or select the Trace Into option from Debug menu.
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While tracing the procedure execution, we can watch the variables added for watch option inthe watch window.
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Assignment 6Objective:To learn how to use the DBMS output window of SQL Editor.
The following demo is to show the use of DBMS Output window available in SQL Editor ofTOAD.
Step 1:Type the following code in SQL Editor, as given in the snap shot. Click on DBMS Outputwindow, and click on the clear window button.
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Step 2:Click on the Turn Output On button as shown in the below snap shot.
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Step 3:Go to Debug menu and select the Run option.
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Once you Run the script, the DBMS Output window will show the output.
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Assignment 7Objective:To learn how to use the CodeXpert option of SQL Editor.
Step 1:Type the following query in SQL Editor.
Select emp.empno, emp.deptno, dept.dname from emp, dept;
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Step2 :
Select CodeXpert window and click on button available in CodeXpert window.
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8/10/2019 Oracle TOAD Lab Guide
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