快捷键：alt +shift + a
效果：
select v1.customer_id,
v1.companynamechn companyName,
v1.customer_level customer_level,
v1.customer_type customer_type,
v1.contractlocation contractLocation,
v1.ticketnum noOfTicket,
v1.servicenum noOfServiceID,
decode(v1.servicenum,
可以将sql和代码美化