What is a left inner join?
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What is the requirement of self-join?
what is ref cursor in pl/sql?
What does where 1/2 mean in sql?
Is keyword pl sql?
When a dml statement is executed, in which cursor attributes, the outcome of the statement is saved?
How many types of keys are there in sql?
Why join is faster than subquery?
What is thread join () in threading?
IN A TABLE HAVE ONE COLUMN PRIMARY KEY..IT WILL NOT ALLOWS NULL VALUES AND DUPLICATE VALUES..INSTEAD OF PRIMARY KEY WHY CANT WE USE UNIQUE AND NOT NULL.THESE TWO ALSO DOESNT ACCEPT NULL VALUES IN NOT NULL AND UNIQUE DOESNT ACCEPT DUPLICATE VALUES? SO WHAT IS THE DIFEERENCE BETWEEN(UNIQUE,NOT NULL) AND PRIMARY KEY??????
How do you update f as m and m as f from the below table testtable?
What is a null value?
What's the procedure?
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