使用ALTER TABLE语句启用和禁用 CHECK 约束,该语句始终需要架构修改锁 (Sch-M)。 Sch-M 锁可阻止对表的并发访问。 有关详细信息,请参阅锁定和 ALTER TABLE。 权限 需要对表的 ALTER 权限。 使用SQL Server Management Studio 在“对象资源管理器”中,展开具有约束的表,再展...
Try this for T-SQL script change the database name of course! ;) prettyprint USE <databasename>; GO SET NOCOUNT ON DBCC UPDATEUSAGE(0) -- DB size. EXEC sp_spaceused-- Table row counts and sizes. CREATE TABLE #t ( [name] NVARCHAR(128) , [rows] CHAR(11) , reserved VARCHAR(18)...
*** Table spt_server_info ObjectID 1938105945. Index ID 1 FirstIAM (1:520) Root (1:508) Dpages 1. Index ID 1. 3 pages used in 0 dedicated extents. Total number of extents is 0. *** Processed 52 in sysindexes for database ID 1. File 1. Numberof extents= 210, used ...
*** Table spt_server_info ObjectID 1938105945. Index ID 1 FirstIAM (1:520) Root (1:508) Dpages 1. Index ID 1. 3 pages used in 0 dedicated extents. Total number of extents is 0. *** Processed 52 in sysindexes for database ID 1. File 1. Numberof extents= 210, used ...
When database objects are accessed by SQL Server, the access check is cached in an internal structure called theaccess check result cache. On an instance of SQL Server that has a high rate of ad hoc query execution, you might notice many access check token entries that have a class of 65...
syntaxsql sp_check_subset_filter[ @filtered_table= ]N'filtered_table', [ @subset_filterclause= ]N'subset_filterclause'[ , [ @has_dynamic_filters= ]has_dynamic_filtersOUTPUT] [ , [ @dynamic_filters_function_list= ]N'dynamic_filters_function_list'OUTPUT] [ ; ] ...
【mysql】关于命令SHOW CREATE TABLE <表名\G>报错问题:1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '/G' at line 1 1、首先该命令是用来查看表的详细信息...
当您在表设计器中右击表定义网格并单击**“CHECK 约束”时,这些属性将会出现。 此对话框包含附加到数据库表的约束(唯一约束除外)的一组属性。 应用于唯一约束的属性出现在“索引/键”**对话框上。 备注 如果发布表以进行复制,则必须使用 Transact-SQL 语句 ALTER TABLE 或 SQL Server 管理对象 (SMO) 更改此...
Table error: Object ID <object id>, index ID <index id>, partition ID <partition id>, alloc unit ID <alloc unit id> (type LOB data). The off-row data node at page (<page id>), slot <slot id>, tex...
Parallel checking can be disabled by using Trace Flag 2528. For more information, seeTrace Flags (Transact-SQL). Nonclustered indexes on separate filegroups If a nonclustered index in the specified filegroup is associated with a table in another filegroup, the index isn't checked because the ba...