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In the following figure, Triangle represent school, Square represent college, Circle represent Students, Rectangle represent Private college, and Trapezium represent Distance learning. Which set of letter represent college student that opted for distance learning.
If an entity set is a lower-level entity set in more than one ISA relationship, then the entity set has
In the given diagram, circle T represent 'teachers', circle S represent 'students' and circle P represent 'principles'. The region are denoted by the numbers 1 to 7. Based on the diagram answer the question given below. Select the region that represent teaches who are neither students nor principals.
An entity in A is associated with at most one entity in B, and an entity in B is associated with at most one entity in A.This is called as
In the following figure Rectangle represent Bread, Circle represent Pizza, triangle represent Burger, and Square represent Cheese. Which set of letter represent cheese and bread.
In the following figure Rectangle represent rugby players, Circle represent Chess player, triangle represent Sprinter, and square represent Kabaddi Player. Which set of letters represent Chess player and Kabaddi player but not sprinter.
In an Entity-Relationship (ER) model, suppose ? is a many-to-one relationship from entity set E1 to entity set E2. Assume that E1 and E2 participate totally in ? and that the cardinality of E1 is greater than the cardinality of E2. Which one of the following is true about ??
There are similarities between the instructor entity set and the secretary entity set in the sense that they have several attributes that are conceptually the same across the two entity sets: namely, the identifier, name, and salary attributes. This process is called
Which one of the following is used to represent the supporting many-one relationships of a weak entity set in an entity-relationship diagram?
Study the accompanying Venn diagram that represents groups of persons speaking five different languages as follows. Oblong circle = Marathi ; Rectangle = Kannada, Circle = English, Triangle = Gujarati, Equilateral quadrangle = Hindi Using above information select the false statement/s from following list. (a) Area c represent persons speaking 5 languages but area d represents persons speaking 4 languages only. (b) Areas b and d represent persons speaking same number of languages. (c) Areas f, b and e represent persons speaking same languages. (d) Areas g and h represent persons who speak two languages only.