One of my co workers is under the impression that when adding an index to a table in SQL Server 2008 that the P开发者_Python百科K\'s index is added to that index as well. Therefore if you are using a
I\' working on a Chinese/Japanese learning web app where many tables are indexed by the characters (the \"glyphs\") of those languages.
I\'m on the cusp of starting work on a new webapp. Part of this will give users pages that they can customise in a one to many relationship. These pages naturally need to have unique URLs.
I have a table that keeps the user ratings for items. I want to allow each user to rate an item only once, is there any way to force the database not to allow duplicate for 开发者_JAVA技巧itemId and u
I have a MS SQL Server Database with about 75 tables on it, and I am trying to insert records into tables if a record with the same primary key doesn\'t exist, or update if they do.
Using the ADO.NET MySQL Connector, what is a good way to fetch lots of records (1000+) by primary key?
I\'m working with SQL Server and trying to do a little \"reflection,\" if you will. I\'ve found the system view sys.identity_columns, which contains all of the identity columns for all of my tables.
database= mysql language=php I am codingprogram to work like this PC1 =computer1 step 1.PC1 insert data ,new ID from Auto-increment.
How does the PRIMARY KEY keyword relate to clustered indexes in SQL Server? (Some people seem to want to answer this question ins开发者_开发知识库tead of a different question I asked, so I am giving
Paraphrasing from this MSDN documentation ... An INSERT statement is generated by the Entity Framework and executed on
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