Mention what are different methods to trace the pl/sql code?

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what does myisamchk do? : Sql dba

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What is a column in a table?

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What is nvarchar in sql?

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Why do we need databases?

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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 equi join in sql?

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What is join view in sql?

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What is the difference between stored procedure and view?

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What is pl/sql tables?

7 Answers   TCS,

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How do you use a while loop in pl sql?

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What is the current version of postgresql?

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