在關聯式資料庫 (Relational Database) 中,必須將所有的規則 (Rule) 套用於交易的修改,以維護所有的資料整合性 (Integrity)。 所有的內部資料結構,例如 B 型樹狀結構索引 (B-tree Index) 或是雙向連結串列 (Doubly Linked List),在交易終止時必須是正確的。
此程序依賴資料表 dbo.DomainIntegrity、dbo.ReferentialIntegrity 和dbo.UniqueIntegrity 取得需要驗證的完整性規則 - 此範例會根據 AdventureWorks2022 資料庫中原始資料表的檢查、外部索引鍵及唯一條件約束,以填入這些資料表。 這依賴協助程式程序 dbo.usp_GenerateCKCheck、dbo.usp_GenerateFKCheck 和dbo.Generate...
适用范围:SQL Server 通过运行DBCC CHECKDBTransact-SQL 语句,使用“检查数据库完整性任务”对话框可以检查数据库中的用户和系统表以及索引的分配和结构完整性。 运行DBCC CHECKDB确保数据库中的任何完整性问题均能得到报告,以便系统管理员或数据库所有者在以后加以解决。
When user code runs inside the CLR-hosted environment in SQL Server (called CLR integration), the following design goals apply: Reliability (safety) User code shouldn't be allowed to perform operations that compromise the integrity of the Database Engine process, such as popping a message box ...
DatabaseBackup: SQL Server Backup DatabaseIntegrityCheck: SQL Server Integrity Check IndexOptimize: SQL Server Index and Statistics Maintenance CommandExecute: Stored procedure to execute and log commands CommandLog: Table to log commands Note that you always need CommandExecute; DatabaseBackup, Databas...
Applies to: SQL Server Azure SQL Managed Instance Trace flags are used to set specific server characteristics or to alter a particular behavior. For example, Trace Flag 3226 is a commonly used startup trace flag that suppresses successful backup messages in the error log. Trace flags are frequen...
In SQL Server, you use UNIQUE and CHECK constraints, which are database objects that enforce data integrity in SQL Server tables. To validate that a value is valid in another table, use a foreign key constraint. To validate that a value in a column is within a specific ...
Consult this SQL Server error code list (between 10000 and 10999) to find explanations for error messages for SQL Server database engine events.
Overview of report server modes Processing engines (processors) are the core of the report server. The processors support the integrity of the reporting system and can't be modified or extended. Extensions are also processors, but they perform specific functions. Reporting Services includes one or ...
請使用 DB2SET 指令來指定在 DB2DOMAINLIST 環境變數中擁有使用者 ID 的網域名稱。 sqlcode:-1068 sqlstate:08004 SQL1069N資料庫名稱不是起始資料庫。 說明 資料庫不是本端資料庫。 本端資料庫在系統資料庫目錄中編目為間接的,而此登錄在同一節點上參照本端資料庫目錄中的起始登錄。 無法終止遠端資料庫。