In this video we are going to discuss another question which was asked in the exam of ISRO Given the following expression grammar: E → E ∗ F ∣ F + E ∣ FF → F − F ∣ idWhich …
In this video we are going to discuss another question which was asked in the exam of ISRO Consider the following schema: Emp (Empcode, Name, Sex, Salary, Deptt) A simple SQL query is executed as follows: SELECT Deptt FROM EmpWHERE …
In this video we are going to discuss another question which was asked in the exam of ISRO Consider the following relational schema: Suppliers(sid:integer, sname:string, city:string, street:string) Parts(pid:integer, pname:string, color:string) Catalog(sid:integer, pid:integer, cost:real) Consider the following relational query on …
In this video we are going to discuss another question which was asked in the exam of ISRO If D1, D2…Dn are domains in a relational model, then the relation is a table, which is a subset of (A) D1⊕D2⊕…⊕Dn (B) D1xD2x…xDn (C) D1∪D2∪…∪Dn …
In this video we are going to discuss another question which was asked in the exam of ISRO Let R = (A, B, C, D, E, F) be a relation schema with the following dependencies C->F, E->A, EC->D, A->B. Which …
In this video we are going to discuss another question which was asked in the exam of ISRO The maximum length of an attribute of type text is (A) 127 (B) 255 (C) 256 (D) It is variable
In this video we are going to discuss another question which was asked in the exam of ISRO Given a block can hold either 3 records or 10 key pointers. A database contains n records, then how many blocks do …
In this video we are going to discuss another question which was asked in the exam of ISRO Consider the following log sequence of two transactions on a bank account, with initial balance 12000, that transfer 2000 to a mortgage …
In this video we are going to discuss another question which was asked in the exam of ISRO Consider the following Relationship Entity Diagram(ERD) Which of the following possible relations will not hold if the above ERD is mapped into …
In this video we are going to discuss another question which was asked in the exam of ISRO The queue data structure is to be realized by using stack. The number of stacks needed would be (A) It cannot be implemented …
In this video we are going to discuss another question which was asked in the exam of ISRO A hash table with ten buckets with one slot per bucket is shown in the following figure. The symbols S1 to S7 …
In this video we are going to discuss another question which was asked in the exam of ISRO Six files F1, F2, F3, F4, F5 and F6 have 100, 200, 50, 80, 120, 150 records respectively. In what order should …
