sql server if then else example

Example of deleting duplicate records in a data table in SQL Server, SQL Server [Project] The users table in the database contains the u_name and u_pwd fields. The u_name contains duplicate items. Now we need to delete duplicate items! [Analysis] 1. Generate a temporary tabl

SQL Server creates a stored procedure example for the linked Server, and SQL stored procedure Create a linked server. The linked server allows you to perform distributed heterogeneous

Example of recursive calling of stored procedures in SQL Server: SQL Server Stored Procedure Recursion refers to the situation where a code snippet calls itself. The danger lies in how to prevent it from repeatedly calling itself if it calls itself once. That is to say, rec

SQL Server, db2, and oracle Stored Procedure dynamic SQL statement example Oracle Create or replace procedure a_testAS t_ SQL VARCHAR2 (2000); t_a VARCHAR2 (20); t_ B VARCHAR2 (20); t_c VARCHAR2 (20); t_d VARCHAR2 (20); BEGIN t_c: = 'F'; t_d: = 'G'; -- any

SQL server, db2, oracle Stored Procedure dynamic SQL statement example, db2oracle Oracle Create or replace procedure a_testAS t_ SQL VARCHAR2 (2000); t_a VARCHAR2 (20); t_ B VARCHAR2 (20); t_c VARCHAR2 (20); t_d VARCHAR2 (20); BEGIN t_c: = 'F'; t_d: = 'G'; -- any

name and its corresponding role name. Right-click the solution-add-new folder (ViewModel), then right-ViewModel the folder--add--class to create a new Userrole class, and add the following entities:Namespace Mvcdemo.viewmodels{public class Userrole{public string UserName {get; set;}public string Userrole {get; set;}}}Right-click the Controllers folder to add a control class that inherits from the Controller classAdd the following code (federated Query with LINQ to entity two tables):Using Syste

SQL Server has an SQL profiler that can track the SQL statements executed by the server in real time, which is useful in many times for debugging errors. For example, the complexity of othersCode, Production system, no debugging e

SQL Server uses exec to process SQL strings containing variables. Prompt: the scalar variable @ must be declared (solved !)Copy codeThe Code is as follows:Declare @ tssj nvarchar (100) -- external variableDeclare @ SQL _ SQL nvarchar (100) -- save

procedure", a template-based creation statement will appear. Click "query> specify template parameter value" in the menu to bring up a dialog box to set the template and create the stored procedure. In addition, click "View> template resource manager" in the menu to view the various SQL statement templates provided by SQL SERVER. [A simple

ArticleDirectory Comment Data Synchronization processing (using SQL Server 2000 as an example) 1. Main Purpose Data synchronization between two or more servers 2. Method Use the database replication method to synchronize data through publishing, distribution, and subscription. 3. Steps 1. Configure distribution and release servers (ensure

is declared and needs to be inserted before the BEGIN keyword: dynamic RESULT sets 1LANGUAGE sql*/create PROCEDURE a_test2 ( V_c VARCHAR (()) DYNAMIC RESULT sets 1LANGUAGE sqlbegin DECLARE t_sql VARCHAR2 (a); DECLARE t_a VARCHAR2 (); DECLARE t_b VARCHAR2 (); DECLARE t_c VARCHAR2 (); DECLARE t_d VARCHAR2 (); --The t_stmt behind the for is consistent with the following prepare variable, and its type is statement.

' √ ' Else "' End) allow null, IsNull (E.text,"') default value, IsNull (g.value,"') asDescription fromSyscolumns A Left JoinSystypes b onA.xtype = B.xusertypeInner Joinsysobjects D ona.ID = D.id andD.xtype =' U ' andD.name ' dtproperties ' Left Joinsyscomments E onA.cdefault = e.id Left JoinSys.extended_properties g ona.ID = g.major_id andA.colid = g.minor_id Left JoinSys.extended_properties F onD.id = F.class andf.minor_id =0 whereB.name is not NUL

* FROM Sys.server_audit_specifications --Server Audit Specification Object SELECT * from Sys.server_audit_ Specification_details --Audit action of the server Audit specification object SELECT * from Sys.database_audit_specifications --Database Audit Specification Object SELECT * FROM Sys.database_audit_specification_details --Audit action for Database Audit specification Object SELECT * from Sys.dm_aud

Your current location: homepage tutorial Programming Development mssql database SQLServer basic syntax instance application (3) SQLServer basic syntax instance application (3) thanks to 3lian8 delivery time: Source: triple tutorial 3. Develop applications 1. sort by surname strokes: Select * FromTableNameOrderByCustomerName Your current location: Home> tutorial> programming and development> mssql database> SQLServer basic syntax instance application (3) SQLServer basic syntax instance applicatio

path (1) If an absolute path name is given, the server uses the path name. (2) If a relative pathname with one or more predecessor parts is given, the server searches for files relative to the server's data directory. (3) If you give a filename without a predecessor, the server looks for files in the database directory of the current database.

is no longer in use Exec sp_dropserver 'itsv', 'droplogins' -- Connect to remote/LAN data (openrowset/openquery/opendatasource) 14. openrowset -- Query example Select * from openrowset ('sqlodb', 'SQL Server name'; 'username'; 'Password', database name. dbo. Table name) -- Generate a local table Select * into table from openrowset ('sqlodb', '

. ActiveConnection = Adoconn'//type is stored procedure, adCmdStoredProc = 4. CommandType = 4'//Stored procedure name. CommandText = "Upgetuserinfos"'//Set up user groups. Parameters.item ("@intUserGroup"). Value = 1'//execute stored procedures, unlike the above examples, the open method of using the recordsetAdors.open Adocomm'//Show First valueResponse.Write Adors.fields (0). ValueEnd with'//Release objectSet adors = NothingSet Adocomm = NothingFinally, let's look at how

= ' P ')drop proc SpupdatestudentGoCREATE TABLE Student(FName nvarchar (10),Fagesmallint,Fdiqu varchar (50),Ftel int)GoINSERT into Student values (' x.x.y ', ' tesing ', 888888)GoCreate proc Spupdatestudent(@fCase int,@fName nvarchar (10),@fAge smallint,@fDiqu varchar (50),@fTel int)AsUpdate StudentSet Fage = @fAge,---------To update Fage no case requiredFdiqu = (case is @fCase = 2 or @fCase = 3 then @fDiqu else Fdiqu end),Ftel = (case if @fCase = 3 then @fTel else Ftel end)where fName = @fName

An example of SQL SERVER database attack Recently, it was found that the SERVER on the internet is inexplicably restarted. This SERVER currently mainly starts the IIS and SQL SERVER se

gives it a name. Each time you use a stored procedure, you only need to use the following format: Exec proc stored procedure name Stored procedures can also run with parameters: Exec proc stored procedure name parameter value [, parameter value...] ? The stored procedure is not mysterious. It is batch processing. As mentioned above, a view is a named select statement stored on the server. Similarly, a stored procedure is a named batch process stored