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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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Hamari Pahchan NGO

                                HAMARI PAHCHAN NGO

Hunger - we all know how we feel when we are hungry even for a DAY, but poor people face hunger in their daily life and suffer from it with number of diseases and malnutrition .

Hamari Pahchan Ngo is the organisation helping children and poor people to overcome from hunger problem and not just hunger but menstrual , lack of skill and many more . They get funds from people and help these malnutrition folks to live a healthy life. I am an intern in this NGO and is working on HUNGER and collecting donations , creating awareness among people to know more about this major problem which actually increased because of COVID-19 Pandemic .

As an intern I feel pleasure to help these small children and also tried to upgrade my skills by making animated video on this topic, which I have not made in my life ever . Creating a Fundraiser Link and spreading awareness for the cause is a different experience after all. Recording lecture for the under privileged children and teaching them the subjects which is your expertise is an all together a different experience . Social media is huge gift from the technology creators which has helped me reaching maximum number of people.

This NGO is actually giving service of celebrating your birthday with these underprivileged children , also encourages you to buy the products made by the unemployed under skill folks . I highly appreciate Hamari Pahchan who is thinking so much about our nation and and doing its best for the betterment of our Future Nation.

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