scope of exception handling in plsql

4 Answers   Wipro,

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What is the fastest way of accessing a row in a table?

5 Answers   TCS,

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What has stored procedures in sql?

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 cartesian join in sql?

0 Answers  

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How do you declare a user-defined exception?

0 Answers  

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How do I find duplicates in sql?

0 Answers  

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what is the difference between undefined value and null value? : Sql dba

0 Answers  

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which command using query analyzer will give you the version of sql server and operating system? : Sql dba

0 Answers  

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In a table i have columns A,B,C and i have a composite index on columns A,B if so will the following query uses index or not? SELECT sal,name FROM <table_name> WHERE A=<value> AND B=<value> AND C=<value>;

2 Answers   Mastek,

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Can we enter data in a table in design view?

0 Answers  

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What is the need of a partition key?

0 Answers  

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