Scope of rows:all constraints Ordered byschema, table name, constraint type Sample results QueryColumnsRowsSample results Confused about your SQL Server database? You don't have to be. There's an easy way to understand the data in your databases. ...
TABLE_CONSTRAINTS (Transact-SQL) 發行項 2023/12/22 11 位參與者 意見反應 適用於:SQL Server Azure SQL 資料庫 Azure SQL 受控執行個體針對目前資料庫中的每個數據表條件約束,各傳回一個數據列。 這項資訊架構檢視會傳回目前使用者具有許可權之對象的相關信息。
SEARCH PROPERTY LIST SECURITY POLICY SEQUENCE SERVER AUDIT SERVER AUDIT SPECIFICATION SERVER CONFIGURATION SERVER ROLE SERVICE SERVICE MASTER KEY SYMMETRIC KEY TABLE TABLE column_constraint TABLE column_definition TABLE computed_column_definition TABLE index_option ...
有关添加主键或唯一键的详细信息,请参阅 ALTER TABLE table_constraint。备注 可恢复添加表约束仅适用于主键和唯一键约束。 FOREIGN KEY 约束不支持可恢复添加表约束。可恢复操作在以前版本的 SQL Server 中,可使用 ONLINE=ON 选项执行 ALTER TABLE ADD CONSTRAINT 操作。 但是,对于大型表,该操作可能需要数小时才...
本文转自:https://stackoverflow.com/questions/14229277/sql-server-2008-get-table-constraints You should use the currentsyscatalog views (if you're on SQL Server2005or newer - thesysobjectsviews aredeprecatedand should be avoided) - check out theextensive MSDN SQL Server Books Online documentation ...
Is a column or list of columns specified in parentheses that are used in a new constraint. [ ASC | DESC ] Specifies the order in which the column or columns participating in table constraints are sorted. The default is ASC. WITH FILLFACTOR =fillfactor Specifies how full the Database Engine...
SQL Server / Oracle / MS Access: CREATETABLEPersons(Id_PintNOTNULLUNIQUE,LastNamevarchar(255)NOTNULL,FirstNamevarchar(255),Addressvarchar(255),Cityvarchar(255)) 1. 2. 3. 4. 5. 6. 7. 8. 如果需要命名 UNIQUE 约束,以及为多个列定义 UNIQUE 约束,请使用下面的 SQL 语法: ...
Specifies the order in which the column or columns participating in table constraints are sorted. The default is ASC. WITH FILLFACTOR **=**fillfactor Specifies how full the Microsoft SQL Server 2005 Database Engine should make each index page used to store the index data. User-specifiedfillfactor...
You can also add check constraints to a table after a table exists using the ALTER TABLE syntax. The following constraint will ensure an employee date of hire is always in the past by using the system function GETTIME. CREATE TABLE Employees_2 ...
适用于:SQL Server Azure SQL 数据库 Azure SQL 托管实例 Microsoft Fabric SQL 数据库在数据库中创建新表。备注 有关Microsoft Fabric 中仓库的引用,请访问 CREATE TABLE (Fabric 数据仓库)。 有关Azure Synapse Analytics 和 Analytics Platform System (PDW) 的参考,请访问 CREATE TABLE (Azure Synapse Analytics...