In my table i have 4 columns with 100 records but in that 4 columns one column contains all NULL values so can i add NOT NULL CONSTRAINT on that column......... ok if it is not possible, can i add NOT NULL CONSTRAINT from 101 Record Onwards?

4 Answers   Cap Gemini,

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How to recover a dropped index?

1 Answers  

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What would you use to improve performance on an insert statement that places millions of rows into that table?

1 Answers  

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How many types of tables are there in oracle?

0 Answers  

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How to Remove the 3rd highest salary person record from table?

9 Answers   HCL, IBM,

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Explain what are the advantages of views?

0 Answers  

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How to create additional tablespaces for an new database?

0 Answers  

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Can we commit inside a function in oracle?

0 Answers  

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What is Normalization ?

55 Answers   ACS, Genpact, Graphix Solution, IBM, Keane India Ltd, TCS, Vault,

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Q1:code to connect to sql server(database) through jdbc application. Q2:code to connect to Mysql(database) through jdbc application. Q3:code to connect to oracle(database) through jdbc application.

1 Answers  

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how will I find the first 5 highest salaried employees in each dept in oracle.

22 Answers   IBM,

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I am using an Oracle 8i Database my data contains Clob data. I am using toad version 7.6 i am able to get the data in toad but unable to extract the data in excel.when trying to extract the data into the excel the toad error says out of memory. Can any body please help me to extract the data through the same toad version. Thanks in advance

0 Answers   Cisco,

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