Questions

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.

Das Kapital, one of the major works of the 19th-century. Economist and philosopher Karl Marx (1818–83), wrote, in which he expounded his theory of the capitalist system, its dynamism, and its tendencies toward self-destruction.

Washing soda is the common name for Sodium Carbonate (Na2CO3). It is also called as Soda Ash.

“Rashtriya Vayoshri Yojana” was launched by the Ministry for Social Justice and Empowerment on 1 April 2017 at Nellore (Andhra Pradesh). Under the scheme, physical aids and assisted-living devices for senior citizens were distributed to senior citizens belonging to below poverty line (BPL) category.

– The scheme has been implemented through the sole implementing agency – Artificial Limbs Manufacturing Corporation (ALIMCO), a public sector undertaking. The aids to be distributed under the “Rashtriya Vayoshri Yojana” scheme include walking sticks, elbow crutches, walkers, tripods / quadpods, hearing aids, artificial dentures and spectacles.

– The ambitious scheme, first of its kind in the country, is expected to benefit 5,20,000 Senior citizens over a period of the 3 years.

RAM: Read / Write memory, High Speed, Volatile Memory.

ROM: Read only memory, low speed, non volite memory.