SQL - Kuangcp/Note GitHub Wiki
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目录 end|2020-04-27 23:42|
基础SQL语言的学习使用
soar
SQL Optimizer And Rewriter
case when then else end
update table_test set mark =
case
when id = 2 then '2'
when id = 5 then '5'
else ''
end
where id in (2,5);