What is use of package in pl sql?

0 Answers  

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Explain how to use transactions efficiently : transact sql

0 Answers  

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Why do we need unique key in a table?

0 Answers  

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what is pragma ?

1 Answers   Polaris,

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What is the maximum number of columns in sql table?

0 Answers  

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write the Sql query for creating database backup?

7 Answers   TCS,

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I have a table with 1 million records out of which 10,000 records are of unique records, then if I will implement index, then which type of index shall I use and why shall I use?

2 Answers   HSBC,

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How do I install microsoft sql?

0 Answers  

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Is t sql a programming language?

0 Answers  

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What is Difference Between Unique and Primary Key Constraints?

0 Answers   Wipro,

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Create table emp (id number(9), name varchar2(20),salary number(9,2)); The table has 100 records after table created.Now i nee to change id's Datatype is to be Varchar2(15). now Alter table emp modify(id varchar2(15),name varchar2(20), salary number(9,2)); Whether it will work or returns error? post answer with explanation.

13 Answers   Oracle, TCS,

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What is pivot in sql?

0 Answers  

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