if object_id('tb') is not null drop table tb;goCREATE TABLE tb(yearid int,[population] int,income int)goinsert into tb(yearid,[population],income)select 2010 as id,100000 as population,123456 as incomeunion all select 2011,110000,1346000un
if object_id('tb') is not null drop table tb; go CREATE TABLE tb(yearid int,[population] int,income int) go insert into tb(yearid,[population],income) select 2010 as id,100000 as population,123456 as income union all select 2011,110000,1346000 union all select 2012,115000,1200000 union all select 2013,120000,1500000
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