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Today, even where ER modeling could be useful, it is uncommon because many use tools that support similar kinds of model, notably class diagrams for OO programming and data models for relational database management systems. Some of these tools can generate code from diagrams and reverse-engineer diagrams from code.
The relational model was introduced by E.F. Codd in 1970 [2] as a way to make database management systems more independent of any particular application. It is a mathematical model defined in terms of predicate logic and set theory , and implementations of it have been used by mainframe, midrange and microcomputer systems.
Higher education in Pakistan is the systematic process of students continuing their education beyond secondary school, learned societies and two-year colleges. The governance of higher education is maintained under the Higher Education Commission (Pakistan) (HEC) which oversees the financial funding, research outputs and teaching quality in the ...
Board Established City Website Refs Catholic Board of Education, Pakistan: 1961 Karachi [47] Lahore [48] [49] Diocesan board of education, Pakistan 1960 Islamabad, Rawalpindi [50] [51] Presbyterian Education Board Pakistan Lahore, Punjab
The Board is autonomous in nature. The central forum is called Punjab Boards Committee of Chairmen (PBCC) and all the BISE's in Punjab take over the Chairmanship for one year in alphabetical order. Mr. Muhammad Adnan Khan is the current chairman of the Board. The Board was established in October, 1977.
Three people, of which two were police officers and one a firefighter, were injured when a garbage truck exploded in a Chicago suburb last Friday.. The police officers and firefighter were ...
The National Database & Registration Authority (NADRA) (Urdu: قومی مقتدرہِ اندراجات و معطیات) is an independent and autonomous agency under the control of the Interior Secretary of Pakistan that regulates Government Databases and statistically manages the sensitive registration database of all the National Citizens of Pakistan.
Here’s what authorities are still trying to find: The confirmed identity of the suspect. The weapon used in the shooting. The bicycle the suspect used to get away