下列哪些内容在声明块中有效？( )
intCustomerId int4 := 67;
intCustomerId int4 = 67;
intCustomerId int4;
intCustomerId int4; intCustomerId:= 67
青云测评
青云测评
下列哪些内容在声明块中有效？( )
intCustomerId int4 := 67;
intCustomerId int4 = 67;
intCustomerId int4;
intCustomerId int4; intCustomerId:= 67
