問題描述
假設(shè)我有一個 int 字段，我將默認(rèn)值設(shè)置為 (0)，這可行，但我見過有人這樣做((0))，為什么?
Let's say I have an int field, and I set the default value as (0), which works, but I've seen people doing it like this instead ((0)),why?
推薦答案
((0)) 是它在目錄視圖中或在 SSMS 中生成腳本時的顯示方式.所以我認(rèn)為當(dāng)你看到它很可能是一個生成的腳本而不是從頭開始手寫的時候.
((0)) is how it will appear within the catalog views or if you generate a script in SSMS. So I think when you see that it's most likely a generated script and not hand-written that way from scratch.
也就是說，(0)、((0)) 甚至 ((((((((((((0))))))))))))) ...假設(shè)我數(shù)對了，額外的括號不會改變意思，只是可讀性.
That said, there is nothing different between (0), ((0)) or even (((((((((((((0))))))))))))) ... assuming I counted right, extra parentheses don't change the meaning, just readability.
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