in sql server 2008

Certificates and asymmetric keys encrypt data using the internal public key at the database level, and data is decrypted using a database-level internal private key. Symmetric keys are relatively simple, and they contain a key for both encryption

This paper mainly deals with the application examples of DDL triggers and login triggers. MicrosoftSQL Server provides two primary mechanisms for enforcing business rules and data integrity: constraints and triggers. Triggers are special types of

Copy Code code as follows: Create Table Demo_values (pkid int NOT null identity (1,1) primary key , dname Nvarchar () null , Dcode NVarchar () null , ddate datetime NULL ) Go --this SQL is only for SQL Server 2008 Insert

When you insert multiple rows of data, you do not have to write more than n insert INTO. SELECT DISTINCT ' (' + ' "' +loginip + ' + ') ' + ', ' from dbo. Login WHERE LoginName in ( SELECT DISTINCT loginname from dbo. Login WHERE loginip= ' 61.17

Problem Security is a major consideration for any company. Database backups are easily stolen and restored to another instance of SQL Server. As we explore the new features of SQL Server 2008, we are interested in a feature called Transparent data

Mainly in modeling when we added some notes to the table, column, and Sql2005 after the system table sysproperties has been discarded and replaced by sys.extended_properties .1. Modify the Table Tablecomment sectionMenu database, Edit current DBMS

Because SQL2008 optimizes file and log management, the following commands can be run in SQL2000 and 2005, but SQL2008 does not support clearing logs by no_log.1. Clear logs The code is as follows:Copy code Dump transaction database name WITH

An important new feature of SQL Server 2008. The main problem to solve is the table with hierarchical relationships. For example, we use the most organization chart in our daily life. We typically save employee data with a Employees table, and each

Create a table: Copy Code code as follows: CREATE TABLE [TestTable] ( [ID] [int] IDENTITY (1, 1) not NULL, [FirstName] [nvarchar] (MB) COLLATE chinese_prc_ci_as NULL, [LastName] [nvarchar] (MB) COLLATE chinese_prc_ci_as NULL, [

When a user database is available and TDE is enabled, encryption is implemented at the page level when it is written to disk. Decrypts when the data page is read into memory. If a database file or database backup is stolen, the original certificate

An asymmetric key contains a database-level internal public and private key that can be used to encrypt and decrypt data in a SQL Server database, either imported from an external file or assembly, or generated in a SQL Server database. It is not

stored procedure encryption In fact, with this more than 10-year SQL Server, I've become a true fan of the stored procedures. When dealing with business logic directly using SQL statements or stored procedures, I basically choose the latter without

SQL Server 2008 provides an enhanced SQL command merge for use in the msdn:http://msdn.microsoft.com/zh-cn/library/bb510625.aspx Function: Inserts, updates, or deletes on the target table based on the results of joining with the source table. For

Previous versions of SQL Server did not do a good job of tracking object dependencies. The reason is that all object dependencies are tracked by object IDs, which means that the object must be present at the outset. However, tracking objects by

In fact, these two types of the largest research point is the difference in the index. Now I write down one of my discoveries when I use SQL Server2008. (Note: This discussion does not establish any full-text indexing) Usually we think like '%

Summary: When I log in to a new user in SQL Server, there are three errors, 18456, 15128, 4064, respectively, of the error codes-----------------------------------Body-----------------------------------First, the experimental environmentWindows 7SQL

To find the oldest active transaction, you can use the DBCC OPENTRAN command. See Msdn:http://msdn.microsoft.com/zh-cn/library/ms182792.aspx for detailed usage Give an example: Copy Code code as follows: CREATE TABLE t_product (pkid

The certificate also contains both the public key and the key, which is used for encryption and the latter to decrypt. SQL Server can generate its own certificate, or it can be loaded from an external file or assembly. Because they can be backed up

The following figure: 1. The Server Master key (Service master key) is at the top of the hierarchy and is created automatically when SQL Server is installed to encrypt system data, linked server logins, and database master keys. The first time a

One, top instead of SET ROWCOUNT In traditional SQL statements prior to SQL Server 2005, the top statement does not support local variables. See Http://www.jb51.net/article/27089.htm Set ROWCOUNT can be used at this time, but in SQL Server 2005/2008,