


SQL Server generates XML files based on query results_PHP tutorial
/*
'bcp' is not recognized as an internal or external command or operable program?
Check if there is a bcp.exe file in C:Program FilesMicrosoft SQL Server80ToolsBinn
Then add C:Program FilesMicrosoft SQL Server80ToolsBinn to the path and see if there is no such directory.
Right-click My Computer--Properties- -Advanced--Environment variables--Find path in system variables--Edit
Add at the end of the variable value:
C:Program FilesMicrosoft SQL Server80ToolsBINN
*/
/***************************************************** ******************
Stored procedure: P_SaveXML
Function: Generate XML file
Parameters: Table name
Return: XML file in the specified directory
Calling method: Pass the table name that exists in the intermediate table TB_TABLECOLUMN_T
exec P_ZehuaSavexml 'WQ_STINFO_B,WQ_PHY_D','D:xx.xml'
Last change date: 2005-8-17
Contact information: zlp@zehua.com.cn
Remarks: Generate XML files in standard format based on the intermediate table
www.knowsky.com
********************** *************************************************** ***/
/*
exec P_ZehuaSavexml 'WQ_STINFO_B,WQ_PHY_D','D:xx.xml'
*/
go
create proc P_ZehuaSavexml
@TableCodeS varchar(8000) ,
@fname varchar(1000)='c: mp.xml' --Default saved XML file address
as
declare @sql nvarchar(200),@sql1 varchar(400)
declare @cnt int,@Table_Name varchar(20)
declare @i int,@TableCode varchar(20)
declare @err int,@src varchar(255),@desc varchar(255)
create table ##t(re nvarchar(4000))
insert ##t
select Re=''
union all select '
set @i=charindex(',',@TableCodeS)
while @i>0
begin
set @TableCode=left(@TableCodeS,@i-1)
set @sql=''
set @sql=N'select @cnt=count(*),@Table_Name=max(Table_Name) from '
set @sql=@sql N'('
set @sql=@sql N'select top 100 percent * from TB_TABLECOLUMN_T where '
set @sql=@sql N'TABLE_CODE=''' @TableCode ''' and COLUMNS_ISKEY=''√'' '
set @sql=@sql N'order by COLUMNS_SORT '
set @sql=@sql N')'

PHPsessionscanstorestrings,numbers,arrays,andobjects.1.Strings:textdatalikeusernames.2.Numbers:integersorfloatsforcounters.3.Arrays:listslikeshoppingcarts.4.Objects:complexstructuresthatareserialized.

TostartaPHPsession,usesession_start()atthescript'sbeginning.1)Placeitbeforeanyoutputtosetthesessioncookie.2)Usesessionsforuserdatalikeloginstatusorshoppingcarts.3)RegeneratesessionIDstopreventfixationattacks.4)Considerusingadatabaseforsessionstoragei

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PHP sessions have a significant impact on application performance. Optimization methods include: 1. Use a database to store session data to improve response speed; 2. Reduce the use of session data and only store necessary information; 3. Use a non-blocking session processor to improve concurrency capabilities; 4. Adjust the session expiration time to balance user experience and server burden; 5. Use persistent sessions to reduce the number of data read and write times.

PHPsessionsareserver-side,whilecookiesareclient-side.1)Sessionsstoredataontheserver,aremoresecure,andhandlelargerdata.2)Cookiesstoredataontheclient,arelesssecure,andlimitedinsize.Usesessionsforsensitivedataandcookiesfornon-sensitive,client-sidedata.

PHPidentifiesauser'ssessionusingsessioncookiesandsessionIDs.1)Whensession_start()iscalled,PHPgeneratesauniquesessionIDstoredinacookienamedPHPSESSIDontheuser'sbrowser.2)ThisIDallowsPHPtoretrievesessiondatafromtheserver.

The security of PHP sessions can be achieved through the following measures: 1. Use session_regenerate_id() to regenerate the session ID when the user logs in or is an important operation. 2. Encrypt the transmission session ID through the HTTPS protocol. 3. Use session_save_path() to specify the secure directory to store session data and set permissions correctly.

PHPsessionfilesarestoredinthedirectoryspecifiedbysession.save_path,typically/tmponUnix-likesystemsorC:\Windows\TemponWindows.Tocustomizethis:1)Usesession_save_path()tosetacustomdirectory,ensuringit'swritable;2)Verifythecustomdirectoryexistsandiswrita


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