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isnull 譯殊
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edit
螳 isnull()襯 .
select isnull(colA, colB) colA from test
襷曙
colA varchar(1)
colB varchar(10)
企
貎朱Μ colA螳 null 蟆曙 colB varchar(1)朱 讌るΠ.
鏤
蠍 蠍郁鍵..
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: Last modified 2018-04-13 23:12:54
瑚 蟆. 覓企Μ 渚 瑚企 豐狩螻 覿 瑚 蟆. 蠏碁Μ螻 蠏碁れ 讌 襷 蟆. (譽襴)