what is oracle sql,pl/sql with interfaces

2 Answers   TCS,

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How to test for null values?

0 Answers  

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i have a table emp and columns ename,empno,mgr_id,i need ename,manager name as result i.e employee respective manager.. example empno ename mgr_id 1 john 3 2 paul 3 3 smith 1 4 kevin 1 5 stewart 2 result has to look like this ename manager john smith paul smith smith john kevin john stewart paul can u plz help me out in this.....

8 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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Can we call procedure in select statement?

0 Answers  

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How to fetch records from a partitioned table?

2 Answers   HSBC,

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How do I partition in sql?

0 Answers  

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what is check constraint? : Sql dba

1 Answers  

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Why triggers are used?

0 Answers  

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What is the difference between rename and alias?

0 Answers  

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What are the types of views in sql?

0 Answers  

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how view used for security purposes?

3 Answers   Glam India,

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