' 以下为在asp中增加一个sql server2000用户函数,并为建立一个数据库,给他dbo的 权限 ' ****************注意:sql server的验证方式不要选仅为windows方式, ' **************** 允许远程sql server连接 ' ****************该函数已通过测试*************
' 以下为在asp中增加一个sql server2000用户函数,并为建立一个数据库,给他dbo的权限
' ****************注意:sql server的验证方式不要选仅为windows方式,
' **************** 允许远程sql server连接
' ****************该函数已通过测试****************************
' 有什么问题欢迎和我交流,以后会推出对sql server的一些管理操作程序
' 参数:StrLoginName:新增登录名,StrPwd:登录名的密码,StrDBName:新建数据库名
' 函数内局部变量说明:StrServer:服务器所在机器名(本机为local),StrUid:sql管理员,
' StrSaPwd:sql管理员密码。以上三个变量应根据你的情况设置
' 该函数主要调用系统存储过程来实现的
' 注意:本函数没有容错处理,如出现错误,可以确定是你的sql server设置有问题,或已存在该login帐号或该数据库
' call AddUserToMSSQL("testlogin","iamhere","db_test")
Sub AddUserToMSSQL(StrLoginName,StrPwd,StrDBName)
'定义服务器变量和系统管理员登录信息,根据具体情况修改
Dim StrServer,StrUid,StrSaPwd
StrServer="(local)"
StrUid="sa"
StrSaPwd=""
Dim Conn '数据库连接
Dim StrDSN '数据库连接字符串
Dim StrCmd '命令字符串
StrDSN="driver={SQL server};server="&StrServer&";uid="&StrUid&";pwd="&StrSaPwd&";database=master"
'建立和数据库master的连接
set Conn = Server.CreateObject("ADODB.Connection")
Conn.Open StrDSN
'新建一数据库
StrCmd="CREATE DATABASE "&StrDBName
Conn.execute(StrCmd)
'新建一登录帐号
StrCmd="sp_addlogin '"&StrLoginName&"','"&StrPwd&"','"&StrDBName&"'"
Conn.execute(StrCmd)
Conn.Close
'建立与新建数据库的连接,并赋给新登录帐号访问新建数据库的权利
StrDSN="driver={SQL server}; server="&StrServer&";uid="&StrUid&";pwd="&StSarPwd&";database="&StrDBName
StrCmd="sp_grantdbaccess '"&StrLoginName&"'"
Conn.Open StrDSN
Conn.execute(StrCmd)
'使新登录帐号成为新建数据库的拥有者
StrCmd="sp_addrolemember 'db_owner','"&StrLoginName&"'"
Conn.execute(StrCmd)257108.com
'关闭释放连接
Conn.Close
Set Conn=Nothing
Response.Write "用户 "&StrLoginName&" 成功建立!,并且已为他建立了一个数据库 "&StrDBName&"!"
End Sub

MySQLstringtypesimpactstorageandperformanceasfollows:1)CHARisfixed-length,alwaysusingthesamestoragespace,whichcanbefasterbutlessspace-efficient.2)VARCHARisvariable-length,morespace-efficientbutpotentiallyslower.3)TEXTisforlargetext,storedoutsiderows,

MySQLstringtypesincludeVARCHAR,TEXT,CHAR,ENUM,andSET.1)VARCHARisversatileforvariable-lengthstringsuptoaspecifiedlimit.2)TEXTisidealforlargetextstoragewithoutadefinedlength.3)CHARisfixed-length,suitableforconsistentdatalikecodes.4)ENUMenforcesdatainte

MySQLoffersvariousstringdatatypes:1)CHARforfixed-lengthstrings,2)VARCHARforvariable-lengthtext,3)BINARYandVARBINARYforbinarydata,4)BLOBandTEXTforlargedata,and5)ENUMandSETforcontrolledinput.Eachtypehasspecificusesandperformancecharacteristics,sochoose

TograntpermissionstonewMySQLusers,followthesesteps:1)AccessMySQLasauserwithsufficientprivileges,2)CreateanewuserwiththeCREATEUSERcommand,3)UsetheGRANTcommandtospecifypermissionslikeSELECT,INSERT,UPDATE,orALLPRIVILEGESonspecificdatabasesortables,and4)

ToaddusersinMySQLeffectivelyandsecurely,followthesesteps:1)UsetheCREATEUSERstatementtoaddanewuser,specifyingthehostandastrongpassword.2)GrantnecessaryprivilegesusingtheGRANTstatement,adheringtotheprincipleofleastprivilege.3)Implementsecuritymeasuresl

ToaddanewuserwithcomplexpermissionsinMySQL,followthesesteps:1)CreatetheuserwithCREATEUSER'newuser'@'localhost'IDENTIFIEDBY'password';.2)Grantreadaccesstoalltablesin'mydatabase'withGRANTSELECTONmydatabase.TO'newuser'@'localhost';.3)Grantwriteaccessto'

The string data types in MySQL include CHAR, VARCHAR, BINARY, VARBINARY, BLOB, and TEXT. The collations determine the comparison and sorting of strings. 1.CHAR is suitable for fixed-length strings, VARCHAR is suitable for variable-length strings. 2.BINARY and VARBINARY are used for binary data, and BLOB and TEXT are used for large object data. 3. Sorting rules such as utf8mb4_unicode_ci ignores upper and lower case and is suitable for user names; utf8mb4_bin is case sensitive and is suitable for fields that require precise comparison.

The best MySQLVARCHAR column length selection should be based on data analysis, consider future growth, evaluate performance impacts, and character set requirements. 1) Analyze the data to determine typical lengths; 2) Reserve future expansion space; 3) Pay attention to the impact of large lengths on performance; 4) Consider the impact of character sets on storage. Through these steps, the efficiency and scalability of the database can be optimized.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

SublimeText3 English version
Recommended: Win version, supports code prompts!

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

Dreamweaver CS6
Visual web development tools
