将log表改名为action_log 添加备注(comment)字段,数据类型为varchar(70) time字段名改为actionTime,数据类型改为DATETIME 删除备注(comment)字段 二、设置主外键约束 添加主键语法: ALTER TABLE 表名 ADD CONSTRAINT 主键名 PRIMARY KEY 表名(主键字段); 添加外键语法: ALTER TABLE 表名 ADD CONSTRAINT 外键名 FORE...
select UserName as name --给列起别名 from UserInfo ui select top 2 * --查询前两行 from UserInfo select top 10 percent * --查询前百分之10 from UserInfo insert into UserInfo values('zsb1','1'),('zsb2','3'),('zsb1','4'),('zsb2','7') select * from UserInfo order by UserName...
The string that contains the text of the comment. Remarks The server does not evaluate the text between the comment characters, /* and */. Comments can be inserted on a separate line or within a Multidimensional Expressions (MDX) statement. Multiple-line comments must be indicated by /* and...
Commenti e suggerimenti Si applica a:SQL Serverdatabase SQL di AzureIstanza gestita di SQL di Azureendpoint di analisi SQL di Azure Synapse AnalyticsPlatform System (PDW)in Microsoft FabricWarehouse nel database SQL di Microsoft Fabricin Microsoft Fabric ...
Indicates user-provided text. Comments can be inserted on a separate line, nested at the end of a Transact-SQL command line, or within a Transact-SQL statement. The server does not evaluate the comment. Transact-SQL syntax conventions
SQL Server È possibile aggiungere commenti in una query XQuery. Per aggiungere stringhe di commento, utilizzare i delimitatori "(:" e ":)". Ad esempio: declare @x xml set @x='' SELECT @x.query(' (: simple query to construct an element :) ...
SQL Server 2005全文检索技术 如果想要高管要在A城检索全部的人事信息、财务信息、产品信息,根据上面讨论需要增加一系列统一查询结果的配置登记。 1. 链接服务器登记表 表:连接服务器登记表 (LS : Linked Server) 2. 查询结果统一化登记表 这里为了所有的操作都可以配置化,同时为了提高开发库的重用性,笔者采用了...
Indicates user-provided text. Comments can be inserted on a separate line, nested at the end of a Transact-SQL command line, or within a Transact-SQL statement. The server does not evaluate the comment. Transact-SQL syntax conventions
The server does not evaluate the comment. Transact-SQL syntax conventions Syntax syntaxsql Copy -- text_of_comment Arguments text_of_comment Is the character string that contains the text of the comment. Remarks Use two hyphens (--) for single-line or nested comments. Comments inserted ...
那么还有关于如何在生成Microsoft SQL Server 2000数据库脚本时自动生成注释的方法也在此说明一下。在Column 下建立Text键ColumnComment,并把这段代码复制到 Value文本框中去就可以了:EXECUTE sp_addextendedproperty N'MS_Description', N'%COMMENT%', N'user', N'%OWNER%', N'table', N'%TABLE%', N'column...