oracle,db2,sqlserver怎样根据已有表的创建新表?
sqlserver中用select * into newtable from oldtable where 1=0
oracle和mysql中用create table newtable as select * from oldtable where 1=0
db2:create table newtable like oldtable
oracle和mysql中用create table newtable as select * from oldtable where 1=0
db2:create table newtable like oldtable
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