Question
In the questions given below, there are three
statements followed by three conclusions I, II and III. You have to take the three given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts. Statements: All Posters are Banners. All Banners are Hoardings. Some Hoardings are Boards. Conclusion: I. Some Banners are Boards. II. Some Boards are Posters. III. Some Hoardings are PostersSolution
All Banners are Hoardings (A) + Some Hoardings are Boards (I) → No conclusion. Hence conclusion I does not follow. All Posters are Banners (A) + All Banners are Hoardings (A) → All Posters are Hoardings (A) + Some Hoardings are Boards (I) → No conclusion. Hence conclusion II does not follow. All Posters are Banners (A) + All Banners are Hoardings (A) → All Posters are Hoardings (A) → Conversion → Some Hoardings are Posters (I). Hence conclusion III follows.
What is the primary purpose of a `SEQUENCE` in SQL?
In PL/SQL, what type of parameter allows a procedure to both receive a value from the calling environment and return a modified value back to it?
Which SQL clause is used for filtering rows?
Which SQL command is used to modify existing records in a table?
Which type of trigger fires once for each row affected by the triggering DML statement?
Which operator is used for pattern matching in SQL?
When does an implicit cursor get automatically declared and managed by PL/SQL?
Which SQL command is used to remove a table completely?
Which join returns rows from the left table even when there is no matching row in the right table, filling with NULLs for the right side?
What is an SQL `VIEW`?
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