Usergrants a login access to the databaseList users in SQL Server database One login can be associated with many users but only in different databases Query selectsp.nameaslogin, sp.type_descaslogin_type, sl.pa
Article for:SQL Server▾ Query below lists table (and view) indexes. Query selectschema_name(t.schema_id) +'.'+ t.[name]astable_view,casewhent.[type] ='U'then'Table'whent.[type] ='V'then'View'endas[object_type], i.index_id,casewheni.is_primary_key =1then'Primary key'wheni...
without the data dictionary, though SQL Server would know and understand the SQL language, it wouldn’t know about your database tables and columns; therefore, it wouldn’t be able to query them.
For this discussion, a data dictionary will be built from the ground up using T-SQL. While this work will be done in SQL Server, a similar process could be written in other database systems to perform the same tasks. The benefits of building a data dictionary from scratch a...
SQL Server 2016 (13.x) 藉由將字串數據行的述詞向下推送至 SCAN 節點,大幅改善了使用字串型數據行的分析查詢效能。 String predicate pushdown leverages the primary/secondary dictionary created for columns to improve the query performance. 例如,請考慮數據列群組內包含100個相異字串值的字串資料行區段。
To query the server for all available collations, use the following fn_helpcollations() built-in function: SQL Copy SELECT * FROM sys.fn_helpcollations(); Collations in Azure SQL Database You can't change or set the logical server collation on Azure SQL Database, but can configure each...
例外狀況資訊:例外狀況類型:Microsoft.SqlServer.Management.SqlIMail.Server.Common.BaseException 訊息:交易無效。 數據:System.Collections.ListDictionaryInternal TargetSite: Void ValidateConnectionAndTransaction() HelpLink:NULL 來源:DatabaseMailEngine StackTrace 資訊:at Microsoft.SqlServer.Management.SqlIMail.Server.Da...
此外，SQL 也有一些变种，就像中文有很多方言，比如：1）微软的 SQL Server 使用T-SQL；2）Oracle ...
ADOMD.NET .NET 托管的数据访问接口,提供对多维数据源(例如 Microsoft SQL Server Analysis Services)的访问。 聚合函数 对多个值执行计算并返回单个值的函数。 聚合查询 (aggregate query) 通过包括聚合函数(例如 Sum 或 Avg)来汇总多行信息的查询(SQL 语句)。 aggregation 包含用于联机分析处理 (OLAP) 多维数据集...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) SQL database in Microsoft Fabric Modifies an existing table or view index (rowstore, columnstore, or XML) by disabling, rebuilding, or reorganizing the index; or by ...