瞭解sql執行順序-優化sql-提升執行速度

**7.select 8.distinct (plan) ,name,riskcode ,duty 1. from pandaa a 3. inner join pandab b 2.on a.plan = b.id （至關於 select distinct (plan) ,name,riskcode ,duty from pandaa a,pandab b where a.plan=b.id 只

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