Why do we need unique key in a table?

0 Answers  

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Can we alter stored procedure?

0 Answers  

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How much ram can sql express use?

0 Answers  

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wht is the difference between truncat,drop in sqlserver wht is the difference between function and stored procedure

3 Answers   Apollo,

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can i call procedure in package

3 Answers   TCS,

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Where the integrity constrints are stored in Data Dictionary?

1 Answers  

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Why do we use procedures in pl sql?

0 Answers  

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how many tables will create when we create table, what are they? : Sql dba

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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How to recompile a already made trigger?

2 Answers  

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How to improve the performance of a pl/sq stored procedures or functions or triggers and packages ?

12 Answers   IBM, TCS, UHD,

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What are the advantages of VIEW?

5 Answers  

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