Article for:SQL Server▾ Query below lists all table (and view) constraints - primary keys, unique key constraints and indexes, foreign keys and check and default constraints. Query selecttable_view, object_type, constraint_type, constraint_name, detailsfrom(selectschema_name(t.schema_id) +'...
*** 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 ...
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...
转储文件包含DBCC CHECKALLOC命令的结果以及其他诊断输出数据。 该文件拥有任意访问控制列表 (DACL)。 只有 SQL Server 服务帐户和 sysadmin 角色的成员才有权进行访问。 默认情况下,sysadmin 角色包含 Windows BUILTIN\Administrators 组和本地管理员组的所有成员。 如果数据收集进程失败,DBCC 命令不会失败。
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] [ ; ] ...
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)...
You can create a check constraint in a table to specify the data values that are acceptable in one or more columns in SQL Server by using SQL Server Management Studio or Transact-SQL. For more information on adding column constraints, see ALTER TABLE column_constraint. For more information, ...
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...
Except for the database connection and server properties. Adjust adapter batch settings A receive adapter can make use of batching in order to reduce the numbers of database "round trips" required to publish messages to the BizTalkMsgBoxDb (message box). Batch sizes can be configured on ...