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Database Management System (DBMS) MCQs | Page - 143
Dear candidates you will find MCQ questions of Database Management System (DBMS) here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
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Q. 1421) Under which two circumstances do you design database triggers? (Choose two)
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Q. 1422) This statement fails when executed: CREATE OR REPLACE TRI GGER CALC_TEAM_AVG AFTER I NSERT ON PLAYER BEGIN INSERT INTO PLAYER_BATSTAT ( PLAYER_I D, SEASON_YEAR, AT_BATS, HI TS) VALUES ( : NEW. I D, 1 997, 0, 0) ; END; To which type must you convert the trigger to correct the error?
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Q. 1423) The OLD and NEW qualifiers can be used in which type of trigger?
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Q. 1425) The CREATE TRIGGER statement is used to create the trigger. THE _____ clause specifies the table name on which the trigger is to be attached. The ______ specifies that this is an AFTERINSERT trigger.
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Q. 1427) The variables in the triggers are declared using
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Q. 1428) Which of the following is NOT an Oracle-supported trigger?
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Q. 1429) Which of the following is true concerning triggers?
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Q. 1430) Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity?
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