what is heap table? : Sql dba

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What is the default isolation level in sql server? : Transact sql

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How do I pipe the output of one isql to another?

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Does sql require a server?

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what are the different index configurations a table can have? : Sql dba

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What is the use of procedures?

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What is difference between stored function and application function?

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Is full outer join same as cross join?

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What is the difference between join and natural join?

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How do I run a pl sql procedure in sql developer?

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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??????

8 Answers   rsystems,

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What problem one might face while writing log information to a data-base table in pl/sql?

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