What happens if the update subquery returns multiple rows?

0 Answers  

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if you ctreate table identity

0 Answers  

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query optmization techniques and quwry analyser+projects+ppts

0 Answers  

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pls explain connect by prior with example and its real time use

3 Answers  

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In not less than 100 words what's the main difference between Rolap and Molap in ORACLE ?

0 Answers  

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what is the difference between dbms and rdbms?

3 Answers   Oracle,

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i can create a view with two columns from emp table,, later i need to add one more emp column to existing view.. what is query similarly add one more column to existing primary key constraint.. please give me the solutions

4 Answers   CGI,

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If I have a select statment which retrives 2 rows, & that rows have the same data in all the fields except the last field and I want to merge the 2 rows to be in 1 row with concatenating the last field which have the different data.... eg: the 1st row has these fields: A-B-C the second row has: A-B-X ........ i want to merge the two row to be in one row like ----> A- B- C,X

2 Answers  

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how can get like this result table A col1 col2 --- ----- a A b B C C .. .. .. ... .. ... wants result like for a single column col1 ------ a,b,c,........n of data and another is col1 ------- A B C D ........ a b b d ........

2 Answers   TCS,

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What are the differences between primary key and unique key?

0 Answers  

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How to resolve the ORA-39133 error in Oracle?

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What is the difference between sharding and replication?

0 Answers  

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