types of cursor in sql server

SQL Server uses scripts to create updatable subscriptions for distribution services and transaction replication, and SQL server scripts [Create a local distributor] /************************ [Use local distribution server configuration release ]******* */-- SqlServer 2008 R

listening. But remember, for the default instance, if you choose a port other than 1433, hey, you need to configure the default connection port or use an alias on the client using the Cliconfg.exe tool.Does dynamically configuring a port mean that SQL Server randomly chooses an unused port after each reboot? That's not it. When restarted, SQL

, calculated fields can be indexed. The following conditions must be met:　　 A. The expression of calculated fields is definite.　　 B. Data Types of text, ntext, and image cannot be used.　　 C. The following options must be prepared: ansi_nulls = on, ansi_paddings = on ,.......　　 41. Try to put data processing on the server to reduce network overhead, such as using stored procedures. The stored procedure is co

SQL injection attack types and prevention measures bitsCN.com Observing recent security events and their consequences, security experts have come to the conclusion that these threats are mainly caused by SQL injection. Although many articles have discussed SQL injection, the content discussed today may help you check y

, doesn't it? Let's take a closer look at how to define a cursor: Cursors are divided into cursor types and cursor variables, which, for cursor variables, follow the definition of T-SQL variables (what are the rules defined by T-

What is a cursorThe result set, which is the collection of all row data returned after the select query.Cursors are a mechanism for working with result sets, which can locate a row in the result set, read or write multiple data, or move the cursor to navigate to the rows you want to manipulate the data.Generally complex stored procedures, there will be the appearance of cursors, his main use is: Navigates to a row in the result set. Reads

and returns an error. If the value is the same, the server performs the modification. Select this concurrency option optimistic with row VERSIONING: This optimistic concurrency control option is based on row versioning. With row versioning, the table must have a version identifier that the server can use to determine whether the row has changed since it was read into the

Oracle PL/SQL Composite data types Composite data types can be roughly divided into two types. The first type is record type, which is suitable for processing single row and multiple columns of data, a bit similar to VO in java; the first type is set type, suitable for processing Single Column and multiple rows of data

SQL Server is a relational database management system that was originally developed by the Microsoft,sybase and ashton-tate three companies and launched the first OS/2 version in 1988. After Windows NT was launched, Microsoft and Sybase went their separate ways in the development of SQL Server, and Microsoft ported

record of which box of football they have. But if someone comes in to steal or cheat, I'm afraid it's not the end of the world. On the other hand, if your database has personal data about the children in your team, such as your home address and phone number, you may need to tighten security (and may require it legally). You can protect the privacy of your data by isolating access so that almost anyone accessing the database can change device data, but only a few people can access personal data.

Label:A clear introduction to SQL cursors, a good learning material. Turn fromHttp://www.cnblogs.com/knowledgesea/p/3699851.htmlWhat is a cursor result set, which is the collection of all row data returned after the select query. Cursors are a mechanism for working with result sets, which can locate a row in the result set, read or write multiple data, or move the curs