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What is system catalog or catalog relation?
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What are database functions?
user says the db performance is slow or yesterday the query runned 1min and today its taking 30 min. how to trouble shot or were to start with?
IF Statements BLOCK 1 . IF a >= b THEN do_this …..; ELSE do_that….; END IF BLOCK 2 . IF a < b THEN do_that …..; ELSE do_this….; END IF; • Given any pair of non-NULL values for “a” and”b”, will Block 1 and Block 2 do the same thing? • What if either “a” or”b” (or both) is NULL?
Define transaction and transaction isolation levels?
What is a system concept?
why an information gap exists in most organizations.
What are service-specific middleware?
Is it possible to modify a Datatype of a column when column contains values?
How do I check my drivers?
What happens when my integer identity runs out of scope?
What is cold backup, hot backup, warm backup recovery?
What is table normalization?
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