Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Brewbean's is implementing a new discount for return shoppers - every fifth completed order receives a 10% discount. The count of orders for a shopper is placed in a packaged variable named PV_DISC_NUM during the ordering process. This count needs to be tested upon checkout to determine if a discount should be applied. Create a trigger named BB_DISCOUNT_TRG so that when an order is confirmed (the ORDERPLACED value is set from 0 to 1), the PV_DISC_NUM packaged variable is checked. If it is equal to 5, then set a second packaged variable named PV_DISC_TXT to 'Y'. This variable is used in calculating the order summary so that a discount is applied if appropriate.
Create a package specification named DISC_PKG that contains the needed packaged variables. Use an anonymous block to initialize the packaged variables to use for testing the trigger. Test the trigger by using the following update statement:
Update bb_basket set orderplaced =1 where idbasket=13;
Reset the ORDERPLACED to zero for the basket used (this is done as needed to complete trigger testing). Also, disable this trigger when completed so that it does not affect other assignment questions.
Using DEFAULT You can use the keyword DEFAULT rather than that of the assignment operator to initialize the variables. For e.g. the declaration blood_type CHAR := ’O’; it can b
NULL Statement The NULL statement clearly specifies in action; it does nothing other than to pass control to the next statement. It can, though, improve the readability. In a
Updating Objects: To change the attributes of objects in an object table, you can use the UPDATE statement, as the illustration below shows: BEGIN UPDATE persons p SET p
Keyword and Parameter Description select_statement: This is a query which returns a result set of the rows. Its syntax is such that of select_ into_statement without the IN
BEGIN Parameter Description in pl sql: BEGIN: This keyword signals the beginning of the executable section of a PL/SQL block, that contains executable statements. The execut
Create the four tables and populate them with the given data. Answer the following queries in SQL. 1. Get all part-color/part-city combinations. Note: Here and subsequently, the
Query: SELECT * FROM EMPLOYEE1; Select 5 columns and all rows from one table Query: SELECT C_ID, COMPANY, BUILDING, DEPARTMENT, BRANCH FROM CONTRACT;
query to Find the account numbers of all customers whose balance is more than 10,000 $
Literature review
THEO R Y OF CATASTROPHISM OR CATALYSM (CUVIER 1769-1832) - The world has passed thorugh several stages and at the end of each stage there was a catastrophe killing all the
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd