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query

Taj.Dec 14 2010 — edited Dec 14 2010
dear all,

there is a table called TEST
in that there is a field called UNIT data type is varchar2(30)
SQL> desc TEST
-----------------------
UNIT varchar2(30) (datatype)


the field value is like below

MM-XX-11
MM-YY-11
AA-BB-XXX
AA/BB-XX-000

now my query is i want to retrieve result as below

MM
MM
AA
AA/BB 

means return only value which is before first '-'.

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Locked on Jan 11 2011
Added on Dec 14 2010
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