sql - oracle query which selects grouped data -

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i can't handle sql statement , have ask help. table contain 3 column:

column1   column2   column3 12345       1        sometext1   23456       1        sometext2 34567       1        sometext3   45678       2        sometext4 56789       2        sometext5

i'm trying write query select data like:

12345   1   sometext1 12345   1   sometext2 12345   1   sometext3 23456   1   sometext1 23456   1   sometext2 23456   1   sometext3 34567   1   sometext1 34567   1   sometext2 34567   1   sometext3 45678   2   sometext4 45678   2   sometext5 56789   2   sometext4 56789   2   sometext5

generally 1 row looks:

column1   column2   column3 **12345**       **1**        **sometext1**   23456       1        **sometext2** 34567       1        **sometext3**   45678       2        sometext4 56789       2        sometext5

and on...

if understand right, need:

select t1.column1, t1.column2, t2.column3 your_table t1 join your_table t2 on t1.column2=t2.column2

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