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私はいくつかのコードでこれに出くわしました:
SELECT column1 +'='+ column2 . . . .
誰が何をするか知って+'='+いますか?私は前にそれを見たことがありません。
+'='+
It is string concatentation.
Put some spaces in there , and it won't look so weird to you. (And will not change functionality) .. this is kinda like
Select LastName + ', ' + FirstName as FullName from dbo.MyTable