Applies to: SQL Server 2008 (10.0.x) and later. Can be specified for FOREIGN KEY constraints and CHECK constraints. If this clause is specified for a constraint, the constraint is not enforced when replication
Applies to: SQL Server 2008 (10.0.x) and later. Can be specified for FOREIGN KEY constraints and CHECK constraints. If this clause is specified for a constraint, the constraint is not enforced when replication agents perform insert, update, or delete operations. ...
兼容性视图 (Transact-SQL) 动态管理视图和函数 (Transact-SQL) 信息架构视图 (Transact-SQL) 信息架构视图 (Transact-SQL) CHECK_CONSTRAINTS (Transact-SQL) COLUMN_DOMAIN_USAGE (Transact-SQL) COLUMN_PRIVILEGES (Transact-SQL) COLUMNS (Transact-SQL) CONSTRAINT_COLUMN_USAGE (Transact-SQL) CONSTRAINT_TABLE_...
Documenting WITH FILLFACTOR =fillfactoras the only index option that applies to PRIMARY KEY or UNIQUE constraints is maintained for backward compatibility, but will not be documented in this manner in future releases. Other index options can be specified in theindex_option (Transact-SQL)clause of ...
Applies to: SQL Server 2016 (13.x) and later, SQL Database. Must be 'AEAD_AES_256_CBC_HMAC_SHA_256'. For more information including feature constraints, see Always Encrypted (Database Engine). ADD MASKED WITH ( FUNCTION = ' mask_function ') Applies to: SQL Server 2016 (13.x) and...
TheALTER TABLEstatement is used to add, delete, or modify columns in an existing table. TheALTER TABLEstatement is also used to add and drop various constraints on an existing table. ADD COLUMN We want to add a column namedcolorto ourcarstable. ...
If set, check semantics (CHECK or NOCHECK) of foreign key constraints are preserved. Otherwise, if not set, and if UseOnlineApproach is not set, foreign key constraints are always recreated with the NOCHECK option to minimize the impact on applications. KeepCheckForeignKeyConstraints is valid onl...
CONSTRAINT_NAME nvarchar(128) 约束名称。 请参阅 参考 系统视图 (Transact-SQL) 信息架构视图 (Transact-SQL) sys.columns (Transact-SQL) sys.objects (Transact-SQL) sys.types (Transact-SQL) sys.check_constraints (Transact-SQL) sys.key_constraints (Transact-SQL) sys.foreign_keys (Transact-SQL)中文...
当我们有了聚集列存储索引后,就不需要非聚集列索引了,因为此时所有的数据都是按照列存储了。但是如果表上需要添加Constraints或者工作负载仍然需要B-tree形式的非聚集索引,那么我们还是只能考虑使用非聚集列存储索引。 语句的执行上有以下改进 基于矢量的计算方式得到改 ...
但是如果表上需要添加Constraints或者工作负载仍然需要B-tree形式的非聚集索引,那么我们还是只能考虑使用非聚集列存储索引。 语句的执行上有以下改进 基于矢量的计算方式得到改 支持更多的语法 所有的join方式(包括OUTER, HASH, SEMI (NOT IN, IN) UNION ALL Scalar aggregates “Mixed mode” plans 对bitmap和...