1? 
1 auto
1 extern
1 static
2? 
2 const
2 volatile
3 float
3 double
3 decimal ( precision
3.1? , scale
3.2 )
3? signed
3.1 long long
3.1 long
3.1 short
3.2! int
3 sqlint32
3 sqlint64
4+ ,
4 variable-name
4.1?  =  expression
4.1.1  ;