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Constraints

NOT NULL CONSTRAINT -    Ensures that a column cannot have a null value. DEFAULT CONSTRAINT -    Provides a default value for a column when none is specified  UNIQUE CONSTRAINT -   Ensures that all values in columns are different  CHECK CONSTRAINT -   Makes sure that all values in a column satisfy certain criteria  PRIMARY KEY CONSTRAINT -   Used to uniquely identify a row in the table  FOREIGN KEY CONSTRAINT -   Used to ensure referential integrity of the data  Primary Key - is used uniquely to identify each row in a table . It can consist of one or more columns on a table . When Multiple columns are used on a table it is called composite key.  Foreign Key - Foreign key is a column or columns that references a column most often primary key of another table . The purpose of foreign key is to maintain referential integrity of the data. Pg admin  Data base - training - right click on training - query click  Always add semi colen to run the query  Int - integer  varchar - variable charact
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6 M's of Product Management and Product Design

Production management 

 also known as Operational Management . It is a dynamic profile , the services and product are developed in daily basis, which is why it is interesting and dynamic job role. 

6 M's of Production Management (lays)

1. Market - Consumer interested to buy the product , sales of the product. 


2. Machine - Machine to produce the lays 


3. Method - A process required to make the potato into cleaning and so on


4. Material - Potato will be the material


5. Money - Finance required to initiate the whole process.


6. Man- Labour is required for each and every step.


OBJECTIVES OF A NEW PRODUCT 

1. Satisfying customer requirements

2. They want to incorporate some changes in existing product.

3. Resources lying vacant , so to use it .

4. Sales going down .

5. To monopolise the market, to have a bigger share.

6. Achieving low cost of production, let us take an example of bakery - initially the baker can make cake as per orders, as it is growing they make cupcakes and keep in shell, here the ingredients remains the same for the cupcake , the baker is using it in better manner , the baker get better return in cupcake , it helps in reducing the cost of production.

7. Machinery on quantity basis, to make sure that the machinery is in healthy condition .



PRODUCT DESIGN ARE OF 4 TYPES 


1. FUNCTIONAL DESIGN - Consider hair brush , here it will contain some functional ingredient , to use it properly it has some curves , a better finishing.

2. AESTHETIC DESIGN - the colour of the hair brush , to make the hair brush attractive.

3.PRODUCTION DESIGN - The hair brush is made in a factory which means a production process is involved to make the product , there can be some changes in the production , to make the production efficient . The extra elements in the product to remove the hindrance .The cupcakes for the design , will be made by machine because of boom in the business.

4.DESIGN FOR PACKAGING - The bristles may damage if the packaging is not good , so the packaging will be good to make it appealing and will be safe , in the original form.









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