CREATE TABLE t_account ( accountkey int NOT NULL PRIMARY KEY NONCLUSTERED, Accountdescription nvarchar (50), accounttype nvarchar(50), unitsold int, INDEX t_account_cci CLUSTERED COLUMNSTORE ) WITH (MEMORY_OPTIMIZED = ON ); 现在,无需对应用程序进行任...
| QUERYTRACEON <integer_value> | RECOMPILE | ROBUST PLAN | USE HINT ( <use_hint_name> [ , ...n ] ) | USE PLAN N'<xml_plan>' | TABLE HINT ( <exposed_object_name> [ , <table_hint> [ [ , ] ...n ] ] ) | FOR TIMESTAMP AS OF '<point_in_time>' } <table_hint> :...
How can I show the table structure in SQL Server query? 回答1 For SQL Server, if using a newer version, you can use select*fromINFORMATION_SCHEMA.COLUMNSwhereTABLE_NAME='tableName' There are different ways to get the schema. Using ADO.NET, you can use theschema methods. Use theDbConnect...
OPENROWSET('provider_name', {'datasource';'user_id';'password'|'provider_string'} , { [ catalog. ] [ schema. ] object |'query'} ) OPENROWSET(BULK)语法用于读取外部文件: syntaxsql OPENROWSET(BULK'data_file', {FORMATFILE='format_file_path'[<bulk_options>] |SINGLE_BLOB|SINGLE_CLOB|SINGL...
where TABLE_NAME='tableName' 1. 2. 3. There are different ways to get the schema. Using ADO.NET, you can use theschema methods. Use theDbConnection'sGetSchemamethodor theDataReader'sGetSchemaTablemethod. Provided that you have a reader for the for the query, you can do something like ...
Type or paste the query into the text box. The query must be a single SELECT* statement. When finished, click OK. When you click OK, the query runs and the custom SQL query table appears in the logical layer of the canvas. Only relevant fields from the custom SQL query display in the...
For more information, seeWITH common_table_expression. NO_PERFORMANCE_SPOOL Applies to: SQL Server (starting with SQL Server 2016 (13.x)) and Azure SQL Database. Prevents a spool operator from being added to query plans (except for the plans when spool is required to guarantee valid update...
如果需要返回事件数据,使用 XQuery value()方法而不是 query()方法。 query() 方法可在输出中返回 XML 和以“and”符转义的回车符和换行符 (CR/LF) 实例,而 value() 方法无法在输出中呈现 CR/LF 实例。 B. 创建事件数据在 DDL 触发器中的日志表 ...
数据定义语言 (Data Definition Language, DDL),是SQL语言集中对数据库内部的对象结构进行创建,删除,修改等的操作语言,这些数据库对象包括database(schema)、table、view、index等。核心语法由CREATE、ALTER与DROP三个所组成。DDL并不涉及表内部数据的操作。 在某些上下文中,该术语也称为数据描述语言,因为它描述了数据...
We use the following code to send out emails with query results. Transact-SQL DECLARE @tableHTML NVARCHAR(MAX) ; SET @tableHTML = N'<H3 style="font-family:verdana;color:darkblue;">Header1</H3>' + N'<H5 style="font-family:verdana;color:darkblue;">SubHeader:</H5>' + N'<H6 style...