What are the basic techniques of indexing?
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what is meant by forward declaration in functions?
What is difference between pls_integer and integer?
what is view? : Sql dba
What is clause in sql?
What is data manipulation language?
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 to create table with in the procedure or function?
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What is the difference between clustered and non-clustered index in sql?
How to maintain the history of code changes of pl/sql?
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