[odb-users] Question about complex query implementing

Music samal zxbzswxr at gmail.com
Thu Nov 29 20:50:24 EST 2018


If I have a class which has a std::string menber

and It is stored in database as Name + index form

#pragma db object
class A{
public:
   A(){}
   friend class odb::access;
  #pragma db id
   uuid  m_id;
  #pragma db column("name")
  std::string m_strName;
};

If I want to store A  object in the database, and make them show like that

A1 has name AName_001;
A2 has name  AName_002;
.....
AXX  has name  AName_0XX;
.....
AZZZ has name  AName_ZZZ;

A1,A2.... AXX ....AZZZ  are all A objects.

If I want to query the an A object with this name form  AName_XXX which has
the biggist index, maybe it's AName_657 or other number and I want to
return this number.
what should I do to implement this query


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