How many types of synonyms in Oracle?
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If I have a select statment which retrives 2 rows, & that rows have the same data in all the fields except the last field and I want to merge the 2 rows to be in 1 row with concatenating the last field which have the different data.... eg: the 1st row has these fields: A-B-C the second row has: A-B-X ........ i want to merge the two row to be in one row like ----> A- B- C,X
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Two triggers one is before insert and other is after insert are firing on a table.If 10 times you insert in a table.Then how many times before trigger and how many types after trigger will fire in pl/sql.
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