How do we use distinct statement? What is its use?
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Are there any features that are decommissioned in 11g that are not present in 11g?
Is sql better than access?
What is constant in pl sql?
What kind of join is join?
If 100 tables are there in user_tables.I want to find in which table zero records are there with table name.Is it possible?
Can we use SQL%ISOPEN in implicit cursors? Does this attribute works properly in Implicit Curosors?
What is crud sql?
What is the requirement of self-join?
State the difference between implict and explict cursor's?
difference between pl/sql table and normal pl/sql table
What is the difference between UNIQUE CONSTRAINT and PRIMARY KEY? 1. There is no difference. 2. A PRIMARY KEY cannot be declared on multiple columns. 3. A UNIQUE CONSTRAINT cannot be declared on multiple columns. 4. A table can have multiple PRIMARY KEYS but only one UNIQUE CONSTRAINT. 5. A table can have multiple UNIQUE CONSTRAINTs but only one PRIMARY KEY.
What is the difference between instead of trigger and after trigger?
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