mssql new guid

Address: http://www.cnblogs.com/huangfr/archive/2012/03/28/2420780.html[Guid] [uniqueidentifier] Not NULL CONSTRAINT [Df_table_guid_guid] DEFAULT (NEWID ()),　　The following article mainly describes the GUID (Global unique identifier) Globally

This post mainly demonstrates "CREATE FILE encountered operating system error 5 (Access is denied.)" The cause of the error (which is, of course, a scenario that causes the error to occur) and how to solve the problem and some puzzling confusion.Lab

MSSQL error tableError Code 3000-3999Error severity description (message text)3009 16 failed to insert backup or restore history/detailed records in the MSDB database. This may indicate a problem with the MSDB database. The backup/restore operation

Recently in the study of ASP. NET core, which uses the Entity Framework core, for the Entity Framework core connected SQL Server database, use code frist to create a database, update the database to make a record.Development tool: VS2017 RCNet Core

Memory-Optimized tables are a new feature of SQL Server 2014, which can put tables in memory, which significantly improves DML performance.For memory-optimized tables, refer to the two Heroes article: SQL Server 2014 new features Quest (1)-Memory

Noun Explanation: This dynamic runtime dynamic, so that the EF dynamic support new tables, dynamic switching database is intended to not change the core framework of the project, The header is achieved by adding or replacing components. First, a

Description of PHP calling COM component. in PHP 4.2.0 to 4.2.3, you can use the w32api_register_function function to call an external DLL, provided that the extended php_w32api.dll needs to be opened in php. ini. If PHP 5 is used, only the php com

access|server|sql| Comparison | tips Background database:[Microsoft Access]And[Microsoft SQL Server]After the replacement, the ASP code should note some of the areas to be modified: [One] connection problem (for example)[Microsoft Access]Constr =

Preface: I haven't written any text for a long time. It was three months ago before the previous article. Although I was very busy at work, I still lacked the content and passion for writing, so I didn't do anything. In the past, I tried to

access|server|sql| comparison Background database:[Microsoft Access]And[Microsoft SQL Server]After the replacement, the ASP code should note some of the areas to be modified: [One] connection problem (for example)[Microsoft Access]Constr =