default constraint造句
例句與造句
- F . adding a default constraint to an existing column
F .在現(xiàn)有列中添加一個default約束 - For more information about these default constraints , see
有關(guān)這些默認(rèn)約束的更多信息，請參見 - Table has a default constraint
表具有default約束。 - As the default constraint , instead of
，而不是將 - If you do n ' t apply a constraint , a default constraint is applied for you
如果您并未具體指定，則使用默認(rèn)的限制。 - It's difficult to find default constraint in a sentence. 用default constraint造句挺難的
- Bound defaults and default constraints cannot be used with an identity column
不能對標(biāo)識列使用綁定默認(rèn)值和default約束。 - Provide priority consignments facility , assign default constraint code automatically
提供“優(yōu)先貨物”設(shè)施，自動編制預(yù)設(shè)的限制代碼 - As its default constraint , you should reset this configuration while doing the tutorial . you configure the auto - connect features in the
作為默認(rèn)的約束，則應(yīng)當(dāng)在執(zhí)行教程時重置此配置。 - Use session user with default constraints in either the create table or alter table statements , or use it as any standard function
Session _ user可在create table或alter table語句中與default約束一起使用，或者將它用作任何標(biāo)準(zhǔn)函數(shù)。 - If no default constraint is defined for the column , this function sets the column to null . an exception is thrown if the row is not marked as updatable
如果沒有為該列定義默認(rèn)的約束，此函數(shù)便將該列設(shè)置為空引用（在visual basic中為nothing ） 。 - When you execute drop login , the login is dropped even if database users are mapped to the login . expressions in computed columns , check constraints and default constraints
執(zhí)行drop login時，即使數(shù)據(jù)庫用戶映射到該登錄名，該登錄名仍會被刪除。 - This option cannot be used when there is a check or default constraint on a udt column , if a udt column is part of the primary key , or if a computed column references a udt column
如果udt列是主鍵的一部分或者計算列引用udt列，則當(dāng)udt列上具有check或default約束時，此選項無法使用。 - The insert statement must supply values for all the columns in the view , even if the underlying member tables have a default constraint for those columns or if they allow for null values
即使基礎(chǔ)成員表對這些列具有default約束或允許null值， insert語句也必須為視圖中的所有列提供值。 - This option cannot be used when there is a check or default constraint on a user - defined type column , if a udt column is part of the primary key , or if a computed column references a udt column
如果udt列是主鍵的一部分或者計算列引用udt列，則當(dāng)udt列上具有check或default約束時，此選項無法使用。 - For example , the as soon as possible constraint , which is the default constraint , tells microsoft project to schedule a task to start on the earliest date possible , taking predecessor links , lag or lead time , and other scheduling factors into account
譬如，默認(rèn)的限制是“越早越好” ，此限制要求microsoftproject按以下原則排定任務(wù)的日程：滿足前置鏈接、提前或推遲日期，以及其他日程排定因素后，在最早的可能日期開始任務(wù)。