check whether all the emp numbers are indeed unique.

6 Answers  

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Does user triggers have entry for trigger with compilation errors?

0 Answers  

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Hi Guys, I have a situation where I need to access the column values from rowtype variable. However, the column names are dynamic. below is sample code: declare Cursor c1 is select * from emp; Cursor c2 is select column_name from xyztable; v_c2 c2%rowtype; v_str varchar2 v_value varchar2(200); begin for rec in c1 loop open c2;---this cursor has column names like EMPLOYEE_ID, FIRST_NAME, LAST_NAME etc. loop fetch c2 into v_c2; exit when c2%notfound; /* now lets say i want to access value of LAST_NAME from cursor c1, so I am writing below code, however it does not work as expected */ v_str:= 'rec.'|| v_c2.column_name; -- this will give me string like "rec.EMPLOYEE_ID" v_value:=v_str; end loop; end loop; end; / Plz help ASAP.Thanks.

2 Answers  

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How many types of database triggers can be specified on a table ? What are they ?

2 Answers  

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i have a table like this. i want to output like this c1 c2 c1 c2 1 10 1 10 2 20 2 30 3 30 3 60 4 40 4 100 5 5 5 105 c1 and c2 are columns in a table .i want output like this c2 values are 10,10+20,10+20+30,10+20+30+40.10+20+30+40+5. write a sql query.pls help this i want urgent.

2 Answers   IBM, Loginworks, OFSS,

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can we call a procedure from a function?

9 Answers   Mind Tree,

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What is the usage of NVL?

7 Answers   Infosys, Micro Infotek,

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How can I pass the inner procedure value to outer procedure ?

2 Answers  

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What is the difference between the implicit and explicit cursors?

0 Answers  

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What will be the output for the below Query Select 'High' from dual where null = null;

12 Answers   Infosys, Satyam,

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What is the difference between join and natural join?

0 Answers  

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Why is stored procedure faster than query?

0 Answers  

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