Why function is used in sql?

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What are three advantages to using sql?

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what are the advantages of sql ? : Sql dba

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Can we use delete in merge statement?

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How to write a procedure for displying the data in a TREE or (PARENT and CHILD ) relationship , for ex: A is the main project id, for this project B,C,D are sub tasks(sub project id's) for B the sub tasks are e,f,g and for c is h ,i ,j and for d is k,l,m now i need to display the o/p in a TREE fashion pls help me , thanks in advance surendra

2 Answers   Zensar,

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what are the differences between char and nchar? : Sql dba

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Explain the PL/SQL compilation process.

3 Answers  

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What is the differnce between view and materialized view

4 Answers   TCS,

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Which certification is best for sql?

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3. Select sum(a) sum_1,max(a) max_1 ,count(a) count_1 from ( ( select 1 a from dual union all Select to_number(‘2011’) a from dual union all select 1 a from dual) union select 2 b from dual);

1 Answers   Fintellix,

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What does joining a thread mean?

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how to extract a unit value from a date and time? : Sql dba

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