what is explain plan?

4 Answers  

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what's the difference between a primary key and a unique key? : Sql dba

0 Answers  

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What is mutating sql table?

0 Answers  

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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 is union, minus and interact commands?

0 Answers  

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What is difference between Procedures and Functions ?

6 Answers   Hi Caliber IT,

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i have a customer table. trans_id trans_date trans_amt debit_credit_indicator 001 01-JAN-13 1099 cr 001 12-JAN-13 500 db 002 24-FEB-13 400 db 002 23-MAR-13 345 cr 001 18-APR-13 800 cr 002 15-MAR-13 600 db 001 12-FEB-13 200 cr i want like this output. trans_id trans_amt debit_credit_indicator i want get highest credit amount and lowest credit amount and highest debit amount and lowest debit amount for each trans_id.

2 Answers   Oracle,

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Can we use views in stored procedure?

0 Answers  

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how to calcuate the second highest salary of he employee

13 Answers   Synechron,

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What is exception? What are the types of exceptions?

0 Answers  

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How can triggers be used for the table auditing?

0 Answers  

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How do you update a sql procedure?

0 Answers  

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