write sub query for eliminating duplicate rows using analytical function?

3 Answers   Metric Stream,

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What is the difference between the conventional and direct path loader? : aql loader

0 Answers  

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What is use of term?

0 Answers  

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How can we Get the Updated Rows? ie, There is 100s of Rows i updated the Rows who have salary 5000. then i want to select the Updated Rows. How can we achieve it?

4 Answers   Fidelity, KCP,

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how to create a test table in your mysql server? : Sql dba

0 Answers  

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How do I remove sql developer from windows 10?

0 Answers  

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Explain about various levels of constraint.

0 Answers  

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What is the usage of sql functions?

0 Answers  

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What is varchar data type 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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when normalization is required

3 Answers   HCL,

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What are the different set operators available in sql?

0 Answers  

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