Answer / gretta

The WHEN clause with POSITION can be used to skip header and footer records.

How do u count no of rows in a table?

8 Answers   CTS,

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how will be date change into string

4 Answers  

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how can we optimize or increase the speed of a mysql select query? : Sql dba

0 Answers  

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What are the steps for performance tuning.

0 Answers  

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select * from emp where sal in(select max(sal) from emp) here there is any limit for in operator how many values accpect ?

2 Answers  

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What does (*) mean in sql?

0 Answers  

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Write a sql to print only character form the below string. @So&*CIE%$TE@GEN!@RAL

1 Answers   Societe Generale,

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Can we use more than one null value for unique key?

31 Answers   A1 Technology, Wipro,

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difference between SQL and C

1 Answers   Indus Software Technologies,

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What is pivot table in sql?

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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Show the two pl/sql cursor exceptions.

0 Answers  

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