Can you explain referential integrity?
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In the procedure division stmt OPEN OUTPUT FILE1. Which of the following is not true about file1. a) there must be a select clause for this file in the file-control paragraph of environment division. b) There must be an FD entry in the file section of the data division. c) The file name must appear in a WRITE stmt in the procedure division. d) There?ll be a CLOSE stmt in procedure division.
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In DB2 Large OBJECTS(lob) COLUMNS ARE USED TO STORE LARGE OBJECTS(DOCUMENTS,PICTURES) IN DATABASE.WHICH OF THE FOLLOWING CLAUSES CANOT BE USED ON LOB COLUMNS? A)GROUPBY B) HAVING C)ORDERBY d) NONE OF THE ABOVE WHICH MQ COMPONENT IS ESSENTIAL IN DISTRIBUTED SYSTEM MESSAGING? A)MQSERVER B)CHANEL C)CLUSTER D)QLOCAL E)QREMOTE IN THE MVS WORLD,COBOL INTRODUCED POINTERS TO THE COBOL.WHICH OF THE FOLLOWING STATEMENT IS TRUE ABOUT COBOL POINTERS? A) A COBOL POINTER CAN POINT TO ANY KIND OF OBJECT. B)COBOL POINTER DOSENOT ALLOW POINTER ARTHEMITIC. A)A b)b C)BOTH A AND B D) NONE WHAT IS THE NAME OF THE JOB THAT HAS AN ADRESS SPACE IDENTIFIER(ASID) OF ONE? what is the cics commands to enable writing mixed characters in cics region? a)cemt caps off b)caps off c)ckti d)ceot tra e)ceot caps off
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which of the following is not true about search verb A) every search stmt must contain the AT END clause B) any no of WHEN clause can be used with this verb C) this verb can only applied to a table which is defined with the OCCURS clause and INDEXED phases. D) WHEN condition is satisfied
suppose if you added a coloumn to db2 table, How would it be the Impact analysis?
COBOL 
