Questions

Advertising is defined as a paid form of communication that reaches the target audience through mass media to provide product/service and brand related information.  

Integrity constraints are used to ensure accuracy and consistency of data in a relational database. Data integrity is handled in a relational database through the concept of referential integrity. Many types of integrity constraints play a role in referential integrity (RI).

Hence, Data integrity constraints are used to Improve the quality of data entered for a specific property i.e, table column.

Indica is the book written by Greek historian "Megasthenes" in which he described India like how is the Indians life, what way of life is followed, etc...