sql server sync tables between databases

This article mainly introduces the experience of correctly optimizing the SQL Server database, including the descriptions worth your attention in the actual operations on it, the most basic principles for optimizing SQL statements are described below.Database optimization considerations:1. Create an index for the key fields.2. Using Stored Procedures makes

server|web| Data | Database one. This is for C # connection WinForm Note points: (1) The namespace of this class must be referenced when called (2) The namespaces referenced in the class Using System; Using System.Data; Using System.Data.SqlClient; (3) Call Example: DataSet DS =new DataSet (); String Sql= "select * from [user]"; Ds=dodatabase.getdataset (SQL); Da

few main examplesU-----------User-created tables, different from system tables (user_table)S-----------system table (system_table)V-----------Views (view)P-----------Stored Procedure (sql_stored_procedure)2. View the column name of the tableSELECT * from syscolumns where id=object_id (' table name ') and name= ' column name '3. View the databaseSELECT * from sys.databases where name = ' Student '4. View Ba

thought at that time ?!　　 This is broken! The database cannot be connected, and the enterprise manager says "(doubt)" next to it )". And the most terrible thing is that this database has never been backed up. The only thing I can find is another database server that was migrated six months ago. The application is usable, but many records, tables, and stored procedures are missing. I really hope this is jus

tables, when adding records at different times, the programmer to use different SQL statements, such as when adding records in 2011, the programmer to add records to the 2011 table, in 2012 to add records, The programmer wants to add the record to the 2012 table. In this way, the programmer's workload increases and the likelihood of errors increases.The use of partitioned

organizations. The programmer includes these modification statements into a transaction so that SQL Server 2005 Database Engine can force the physical integrity of the transaction. Ms SQL SERVER provides a mechanism to ensure the physical integrity of each transaction.1. Lock the device to isolate transactions.2. Reco

1. Pass to database statement parameters Passing parameters to a database operation statement can be implemented by a stored procedure, and here are two other easy ways to do this: You can pass parameters directly into a SQL statement variable in C # by using string manipulation, for example: String s= "Davolio"; String Sql= "SELECT * FROM Employees where lastname=" + "" "+s+" " Equivalent to writing to

The security of databases has always been very important and I believe it will help you. 1. First, you need to install the latest service package To improve Server security, the most effective method is to upgrade to SQL Server 2000 Service Pack 3a (SP3a ). In addition, you should install all released security updates.

, Len (@PrintText)-2) WHERE right (@PrintText, 2) in (char) +char (Ten), Char (+char (13)) SELECT @PrintText =left (@PrintText, LEN (@PrintText)-1) WHERE Right (@PrintText, 1) in (char, char ())--select @Print Text=right (@PrintText, LEN (@PrintText)-1) WHERE left (@PrintText, 1) in (char, char ()) PRINT @PrintText--p RINT '/*** len= ' + cast (len (@PrintText) as varchar) + ' Datalength= ' + cast (datalength (@PrintText) as varchar) + ' ***/' END select @[emailprotected] Select @PrintT Ext=

Regular database backup is a very important task. This is even more important if you have encountered data loss, Server failure, or other backup files. However, if manual backup is performed each time, it is very troublesome. Is there any way to enable automatic backup? Of course. How to do it? Please come with me. The following uses SQL Server 2005 as an example

Data operations between databases on different servers -- Create a linked serverExec sp_addrole server 'itsv', '', 'sqloledb', 'remote server name or IP address'Exec sp_add1_srvlogin 'itsv', 'false', null, 'username', 'Password' -- Query exampleSelect * From itsv. Database Name. DBO. Table Name -- Import exampleSelect * into table from itsv. Database Name. DBO. T

Click Manage/SQL server proxy/jobCreate a job:On the General tab, enter "name" in "regular backup database", "enable", select "check", and "target local server ","Category" select "database service ",On the "Steps" tab, create a step. Step name: backup database; Type: Transact-SQL script (TSQL ); Database: the database

1. Pass database statement Parameters You can use the stored procedure to pass parameters to database operation statements. The following two simple and convenient methods are provided: You can directly input parameters to SQL statement variables through string operations in C #. For example: String s = "Davolio "; String SQL = "select * from employees where LastName =" + "'" + s + "'" Equivalent to writing

System tables: User-defined tables operate on the data they populate. For SQL Server, the user-defined table is equivalent to the data populated by the system tables, so the system table is used to manipulate the user database.Data table