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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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Investment Objectives

 #Objectives of investment 

Short term priority goals -

Long term high priority goals - Invest for 7-8 months and go for your desired goals 

Low priority goals -

Entrepreneurial / money making objective -


#Investment constraints 

-Liquidity - Easily converted into cash or cash equivalents 

- Age - Start investing early to get more return

-Need for regular income - Regular income is must to know what return you expect

-Time horizon-- The more time you invest more return is compounded 

-Risk tolerance - How much capacity you have to tolerate the risk

-Tax liability - In cryptocurrency government has imposed taxes which is not good for investor .

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