Answer / suresh pagadala

Self join is nothing but the table performs join condition itself same table is called self join

What are types of exception?

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what are the drivers in mysql? : Sql dba

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Give the structure of the function ?

2 Answers  

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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 the difference between trigger and storedprocedures

16 Answers   Tech Mahindra,

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How can a pl sql block be executed?

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What are the blocks in stored procedure?

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what is 'mysqld'? : Sql dba

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How can we schedule the procedure to run automatically ?

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Is sql better than excel?

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What is duration in sql profiler trace?

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Why do we create views in sql?

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