Answer / raghunath

select empno from emp group by empno having count(empno)>1;

it is working.

Answer / nagam

select count(*),empno from emp group by empno having count(*)>1;

Answer / prasad

select * from Table_name where column_name in(select Column_name from table_name group by column_name having count(1)>1)


select deptno from emp where deptno in (select deptno from emp group by deptno having count(1)>1)

u will get only duplicate records

for Example:

deptno
----------
10
10
20
20
30
40
50

by using above query the o/p displays

deptno
--------------
10
10
20
20

in one scenario source flat file like Fileld1 00122001550056200568 00256002360014500896 00123004560078900258 00147004560025800256 divide each 5 numbers as one column i.e here i need field1 field2 field3 field4 00122 00155 00562 00568 00256 00236 00145 00896 00123 00456 00789 00258 00147 00456 00258 00256 plz help me....

4 Answers  

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hi everbody, i have a problem in my project.. Native Error Code: -407 "Assignment of a null value to a not null column"  hi everbody, i have a problem in my project.. Native Error Code: -407 "Assignment of a null value to a not null column" i have no idea, what should i do..please help :(

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