context n. 1.上下文;文章的前后關(guān)系[脈絡(luò)]。 2.(事情等的)關(guān)節(jié),范圍,場合,處境,條件;來龍去脈。 tell the meaning of a word from its context從一個字的上文下推知其字義。 in one context 在一定場合,在某一范圍內(nèi)。 in the context of 在…情況下。 in this context 關(guān)于這一點,在這種場合下。 outside the context of 在…之外。
Consider the case in which a user explicitly switches context at the server - level using the execute as login statement 假設(shè)用戶使用execute as login語句在服務(wù)器級顯式切換上下文。
If the execute as statement has been used to switch context , system user returns the name of the impersonated context 如果已使用execute as語句進行上下文切換,則system _ user將返回模擬的上下文的名稱。
To allow for other workers to run , the current running worker has to relinquish control of the scheduler or switch context 若要允許其他工作線程運行,當前正在運行的工作線程必須放棄對計劃程序或切換上下文的控制權(quán)。
First , the application must switch context to the user performing the encryption decryption by issuing the seckfmswitchtoidfile call 首先,因為應(yīng)用程序必須通過調(diào)用seckfmswitchtoidfile將上下文切換到執(zhí)行加密/解密的用戶。
When called without an argument within a batch that has switched context by using execute as , suser sid returns the sid of the impersonated context 當通過使用execute as切換上下文的批處理中無參數(shù)調(diào)用時, suser _ sid將返回模擬上下文的sid 。
When called without an argument within a batch that has switched context by using execute as , suser sname returns the name of the impersonated context 當通過使用execute as切換上下文的批中無參數(shù)調(diào)用suser _ sname時,將返回模擬上下文的名稱。
Switching context between users for example , switching from admin - user to another user , and then back multiple times has performance implications 在用戶間進行多次上下文切換例如,從admin用戶切換到另一個用戶,然后又切換回來會帶來性能隱患。
Because for each process created , not only is just the tss descriptor used for maintaining context - switch context being loaded , but an ldt descriptor is being loaded too 因為對于所創(chuàng)建的每個進程,都不僅要加載一個tss描述符用來維護上下文切換的內(nèi)容,另外還要加載一個ldt描述符。 )