Why do we use %rowtype & %type in plsql?

0 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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Inline the values in PL/SQL, what does it mean.?

0 Answers   MCN Solutions,

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how to eliminate null values in a column i.e table vlaues 1 2 3 NULL 3 4 1 5 NULL i want output like this 1 2 3 3 4 1 5 i dnt want to use nvl is null and i dnt want replace the NULL value with any value i.e nvl(col,o);

11 Answers   Satyam,

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What is the difference between between and in condition operators?

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Is sql an operating system?

0 Answers  

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I want to display the employees who have joined in last two months. (It should be executed randomly means If I execute the query in March it should display Jan and Feb joined employees. Same query if i execute in Feb, 2007 it should display dec, 2006 and jan 2007 joined employees.

15 Answers   Wipro,

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What is sorting in sql?

0 Answers  

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What is mutating table error?

0 Answers  

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how to give permission to users that users can update/insert/delete on a row of table on timeing 10am to 6pm only?

4 Answers   TCS,

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What is using in sql?

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What is sql catalog?

0 Answers  

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