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.

7 Answers   Satyam,

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What packages(if any) has oracle provided for use by developers?

1 Answers  

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In a package if we have 10 procedures or functions,How to know which will execute first?

1 Answers   Sollet Soft,

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hi sql gurus, here is my question 4 u. i wanna use triggers for sending reminder mail to all users who are registered to the site. if any one knws the code plz send me ans here : chayabs3@gmail.com thnx advance

1 Answers  

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Hi how to import oracle sequence in Informatica? Please write stored procedure code that will import oracle sequence in Informatica SP transformation as per below scenario Oracle table product list Pro_id, pro_name 101, LED Lights. 102, 20watt CFL Lights. 103, 30 watt CFL lights Now a new flat file with new product list needs to be added to oracle table product list with oracle sequence. flat file product Prono,pro_name, 1, 20 watt tube light 2, 30 watt tube light & target should be like 101, LED Lights. 102, 20watt CFL Lights. 103, 30 watt CFL lights. 104, 20 watt tube light 105, 30 watt tube light thks reg suvarna joshi suvarnaatsuvarna@rediffmail.com

0 Answers   TCS,

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How to process query result in pl/sql?

0 Answers  

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What is query optimization in sql?

0 Answers  

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Is pl sql and postgresql same?

0 Answers  

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what are Dynamic SQL statements?

9 Answers  

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What are the sql versions?

0 Answers  

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What does the acronym acid stand for in database management?

0 Answers  

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How much does sql cost?

0 Answers  

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