literal constant 中文意思是什麼
literal constant
解釋
文字常數-
A constant is a meaningful name that takes the place of a literal and retains this same value throughout the program, as opposed to a variable, whose value may change
常數是一個替代文本並在整個程序中保持此相同值的有意義名稱，它與變量相對，變量的值可能會更改。 -
Can be of any sql server system data type that can be expressed as a literal constant
可以是任意可用文字常量表示的sql server系統數據類型。 -
Every variable, literal, constant, enumeration, property, procedure parameter, procedure argument, and procedure return value has a data type
每個變量、文本、常數、枚舉、屬性、過程參數、過程變量和過程返回值都具有數據類型。 -
If you have a value that never changes in your application, you can define a named constant and use it in place of a literal value
如果有一個值在應用程序中始終不變，則可以定義一個命名常數，並用該常數取代文本值。
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