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在线管理数据库 类
摘要:

<%

ClassRLManDBCls

PrivatesDBPath,RLConn,sDBType,sServerName,sUserName,sPassword

PublicCount

PrivateSubClass_Initialize()

sDBType=""

EndSub

PrivateSubClass_Terminate()

IfIsObject(RlConn)Then

RlConn.Close

SetRlConn=Nothing

Endif

EndSub

PublicPropertyLetDBType(ByValstrVar)

sDBType=strVar

EndProperty

PublicPropertyLetServerName(ByValstrVar)

sServerName=strVar

EndProperty

PublicPropertyLetUserName(ByValstrVar)

sUserName=strVar

EndProperty

PublicPropertyLetPassword(ByValstrVar)

sPassword=strVar

EndProperty

'设置数据库路径

PublicPropertyLetDBPath(ByValstrVar)

sDBPath=strVar

SelectCasesDBType

Case"SQL"

StrServer=sServerName'数据库服务器名

StrUid=sUserName'您的登录帐号

StrSaPwd=sPassword'您的登录密码

StrDbName=sDBPath'您的数据库名称

sDBPath="driver={SQLserver};server="&StrServer&";uid="&StrUid&";pwd="&StrSaPwd&";database="&StrDbName

Case"ACCESS",""

sDBPath="Provider=Microsoft.Jet.OLEDB.4.0;DataSource="&Server.MapPath(sDBPath)

EndSelect

CheckDataRLConn,sDbPath

EndProperty

'检查数据库链接,(变量名,连接字串)

PrivateSubCheckData(DataConn,ConnStr)

OnErrorResumeNext

SetDataConn=Server.CreateObject("ADODB.Connection")

DataConn.OpenConnStr

IfErrThen

Err.Clear

SetDataConn=Nothing

ErrMsg("数据库连接出错:"&Replace(ConnStr,"","")&",n请检查连接字串,确认您输入的数据库信息是否正确。")

Response.End

EndIf

EndSub

'检查表是否存在

FunctionCheckTable(TableName)

OnErrorResumeNext

RLConn.Execute("select*From"&TableName)

IfErr.Number<>0Then

Err.Clear()

CallErrMsg("错误提示:"&Err.Description)

CheckTable=False

Else

CheckTable=True

EndIf

EndFunction

'错误提示信息(消息)

PrivateSubErrMsg(msg)

Response.Writemsg

Response.Flush

EndSub

'---------------------------------------字段值的操作-----------------------------------------------

'修改字段的值

PublicSubupColumn(ByValTableName,ByValColumnName,ByValValueText,ByValWhereStr)

OnErrorResumeNext

IfWhereStr<>""Then

IfInStr(WhereStr,"Where")<=0Then

WhereStr="Where"&WhereStr

Endif

Else

WhereStr=""

Endif

RLConn.Execute("update"&TableName&"set"&ColumnName&"="&ValueText&""&WhereStr)

IfErr.Number<>0Then

CallErrMsg("错误提示:"&Err.Description)

Err.Clear()

EndIf

EndSub

'执行SQL语句

PublicSubExecute(StrSql)

SetRsCount=Server.CreateObject("ADODB.RecordSet")

OnErrorResumeNext

RsCount=RLConn.Execute(StrSql)

IfLeft(StrSql,12)="SelectCount"ThenCount=RsCount(0)

IfErr.Number<>0Then

CallErrMsg("错误提示:"&Err.Description)

Err.Clear()

EndIf

RsCount.Close

SetRsCount=Nothing

EndSub

'---------------------------------------索引(Index),视图(View),主键操作-----------------------------------------------

'添加字段索引

PublicFunctionAddIndex(ByValTableName,ByValIndexName,ByValValueText)

OnErrorResumeNext

RLConn.Execute("CREATEINDEX"&IndexName&"ON["&TableName&"](["&ValueText&"])")

IfErr.Number<>0Then

CallErrMsg("在"&TableName&"表新建"&IndexName&"索引错误,原因"&Err.Description&"请手工修改该索引。")

Err.Clear()

AddIndex=False

Else

AddIndex=True

EndIf

EndFunction

'删除表索引

PublicFunctionDelIndex(ByValTableName,ByValIndexName)

OnErrorResumeNext

RLConn.Execute("drop空格INDEX["&TableName&"]."&IndexName)

IfErr.Number<>0Then

CallErrMsg("在"&TableName&"表删除"&IndexName&"索引错误,原因"&Err.Description&"请手工删除该索引。")

Err.Clear()

DelIndex=False

Else

DelIndex=True

EndIf

EndFunction

'更改表TableName的定义把字段ColumnName设为主键

PublicFunctionAddPRIMARYKEY(ByValTableName,ByValColumnName)

OnErrorResumeNext

TableName=Replace(Replace(TableName,"[",""),"]","")

RLConn.Execute("ALTERTABLE"&TableName&"ADDCONSTRAINTPK_"&TableName&"PRIMARYKEY("&ColumnName&")")

IfErr.Number<>0Then

CallErrMsg("在"&TableName&"将字段"&ColumnName&"添加为主键时出错,原因"&Err.Description&"请手工修改该字段属性。")

Err.Clear()

AddPRIMARYKEY=False

Else

AddPRIMARYKEY=True

EndIf

EndFunction

'更改表TableName的定义把字段ColumnName主键的定义删除

PublicFunctionDelPRIMARYKEY(ByValTableName,ByValColumnName)

OnErrorResumeNext

RLConn.Execute("ALTERTABLE"&TableName&"drop空格PRIMARYKEY("&ColumnName&")")

IfErr.Number<>0Then

CallErrMsg("在"&TableName&"将字段"&ColumnName&"主键的定义删除时出错,原因"&Err.Description&"请手工修改该字段属性。")

Err.Clear()

DelPRIMARYKEY=False

Else

DelPRIMARYKEY=True

EndIf

EndFunction

'检查主键是否存在,返回该表的主键名

FunctionGetPrimaryKey(TableName)

onerrorResumeNext

DimRsPrimary

GetPrimaryKey=""

SetRsPrimary=RLConn.OpenSchema(28,Array(Empty,Empty,TableName))

IfNotRsPrimary.EofThenGetPrimaryKey=RsPrimary("COLUMN_NAME")

SetRsPrimary=Nothing

IfErr.Number<>0Then

CallErrMsg("数据库不支持检测数据表"&TableName&"的主键。原因:"&Err.Description)

Err.Clear()

EndIf

EndFunction

'---------------------------------------表结构操作-----------------------------------------------

'添加新字段

PublicFunctionAddColumn(TableName,ColumnName,ColumnType)

OnErrorResumeNext

RLConn.Execute("AlterTable["&TableName&"]Add["&ColumnName&"]"&ColumnType&"")

IfErrThen

ErrMsg("新建"&TableName&"表中字段错误,请手动将数据库中<B>"&ColumnName&"</B>字段建立,属性为<B>"&ColumnType&"</B>,原因"&Err.Description)

Err.Clear

AddColumn=False

Else

AddColumn=True

EndIf

EndFunction

'更改字段通用函数

PublicFunctionModColumn(TableName,ColumnName,ColumnType)

OnErrorResumeNext

RLConn.Execute("AlterTable["&TableName&"]AlterColumn["&ColumnName&"]"&ColumnType&"")

IfErrThen

CallErrMsg("更改"&TableName&"表中字段属性错误,请手动将数据库中<B>"&ColumnName&"</B>字段更改为<B>"&ColumnType&"</B>属性,原因"&Err.Description)

Err.Clear

ModColumn=False

Else

ModColumn=True

EndIf

EndFunction

'删除字段通用函数

PublicFunctionDelColumn(TableName,ColumnName)

OnErrorResumeNext

IfsDBType="SQL"THen

RLConn.Execute("AlterTable["&TableName&"]drop空格Column["&ColumnName&"]")

Else

RLConn.Execute("AlterTable["&TableName&"]drop空格["&ColumnName&"]")

Endif

IfErrThen

CallErrMsg("删除"&TableName&"表中字段错误,请手动将数据库中<B>"&ColumnName&"</B>字段删除,原因"&Err.Description)

Err.Clear

DelColumn=False

Else

DelColumn=True

EndIf

EndFunction

'---------------------------------------表操作---------------------------------------------------

'打开表名对象

PrivateSubReNameTableConn()

OnErrorResumeNext

SetobjADOXDatabase=Server.CreateObject("ADOX.Catalog")

objADOXDatabase.ActiveConnection=ConnStr

IfErrThen

ErrMsg("建立更改表名对象出错,您所要升级的空间不支持此对象,您很可能需要手动更改表名,原因"&Err.Description)

Response.End

Err.Clear

EndIf

EndSub

'关闭表名对象

PrivateSubCloseReNameTableConn()

SetobjADOXDatabase=Nothing

Conn.Close

SetConn=Nothing

EndSub

'更改数据库表名,入口参数:老表名、新表名

PublicFunctionRenameTable(oldName,newName)

OnErrorResumeNext

CallReNameTableConn

objADOXDatabase.Tables(oldName).Name=newName

IfErrThen

CallErrMsg("更改表名错误,请手动将数据库中<B>"&oldName&"</B>表名更改为<B>"&newName&"</B>,原因"&Err.Description)

Err.Clear

RenameTable=False

Else

RenameTable=True

EndIf

CallCloseReNameTableConn

EndFunction

'删除表通用函数

PublicFunctionDelTable(TableName)

OnErrorResumeNext

RLConn.Execute("drop空格Table["&TableName&"]")

IfErrThen

ErrMsg("删除"&TableName&"表错误,请手动将数据库中<B>"&TableName&"</B>表删除,原因"&Err.Description)

Err.Clear

DelTable=False

Else

DelTable=True

EndIf

EndFunction

'建立新表

PublicFunctionCreateTable(ByValTableName,ByValFieldList)

DimStrSql

IfsDBType="SQL"THen

StrSql="CREATETABLE["&TableName&"]("&FieldList&")"

Else

StrSql="CREATETABLE["&TableName&"]"

Endif

RLConn.Execute(StrSql)

IfErr.Number<>0Then

CallErrMsg("新建"&TableName&"表错误,原因"&Err.Description&"")

Err.Clear()

CreateTable=False

Else

CreateTable=True

EndIf

EndFunction

'---------------------------------------数据库操作-----------------------------------------------

'建立数据库文件

PublicfunctionCreateDBfile(byValdbFileName,byValSavePath)

OnerrorresumeNext

SavePath=Replace(SavePath,"/","")

IfRight(SavePath,1)<>""OrRight(SavePath,1)<>"/"ThenSavePath=Trim(SavePath)&""

IfLeft(dbFileName,1)=""OrLeft(dbFileName,1)="/"ThendbFileName=Trim(Mid(dbFileName,2,Len(dbFileName)))

IfDbExists(AppPath()&SavePath&dbFileName)Then

ErrMsg("对不起,该数据库已经存在!"&AppPath()&SavePath&dbFileName)

CreateDBfile=False

Else

Response.WriteAppPath()&SavePath&dbFileName

DimCa

SetCa=Server.CreateObject("ADOX.Catalog")

IfErr.number<>0Then

ErrMsg("无法建立,请检查错误信息<br>"&Err.number&"<br>"&Err.Description)

Err.Clear

CreateDBfile=False

Exitfunction

EndIf

callCa.Create("Provider=Microsoft.Jet.OLEDB.4.0;DataSource="&AppPath()&SavePath&dbFileName)

SetCa=Nothing

CreateDBfile=True

EndIf

Endfunction

'查找数据库文件是否存在

PrivatefunctionDbExists(byValdbPath)

OnErrorresumeNext

Dimc

Setc=Server.CreateObject("ADODB.Connection")

c.Open"Provider=Microsoft.Jet.OLEDB.4.0;DataSource="&dbPath

IfErr.number<>0Then

Err.Clear

DbExists=false

else

DbExists=True

EndIf

setc=nothing

Endfunction

'取当前真实路径

PrivatefunctionAppPath()

AppPath=Server.MapPath("./")

IfRight(AppPath,1)=""THen

AppPath=AppPath

ELse

AppPath=AppPath&""

Endif

Endfunction

'删除一个数据库文件

PublicfunctionDeleteDBFile(filespec)

filespec=AppPath()&filespec

Dimfso

Setfso=CreateObject("Scripting.FileSystemObject")

IfErr.number<>0Then

ErrMsg("删除文件发生错误!请查看错误信息:"&Err.number&""&Err.Description&"<br>")

Err.Clear

DeleteDBFile=False

EndIf

IfDbExists(filespec)THen

callfso.DeleteFile(filespec)

DeleteDBFile=True

Else

ErrMsg("删除文件发生错误!请查看错误信息:"&Err.number&""&Err.Description&"<br>")

DeleteDBFile=False

ExitFunction

Endif

Setfso=Nothing

Endfunction

'修改一个数据库名

PublicfunctionRenameDBFile(filespec1,filespec2)

filespec1=AppPath()&filespec1:filespec2=AppPath()&filespec2

Dimfso

Setfso=CreateObject("Scripting.FileSystemObject")

IfErr.number<>0Then

ErrMsg("修改文件名时发生错误!请查看错误信息:"&Err.number&""&Err.Description)

Err.Clear

RenameDBFile=False

EndIf

IfDbExists(filespec1)THen

callfso.CopyFile(filespec1,filespec2,True)

callfso.DeleteFile(filespec1)

RenameDBFile=True

Else

ErrMsg("源文件不存在!!!")

RenameDBFile=False

ExitFunction

Endif

Setfso=Nothing

Endfunction

'压缩数据库

PublicFunctionCompactDBFile(strDBFileName)

DimJet_Conn_Partial

DimSourceConn

DimDestConn

DimoJetEngine

DimoFSO

Jet_Conn_Partial="Provider=Microsoft.Jet.OLEDB.4.0;Datasource="

SourceConn=Jet_Conn_Partial&AppPath()&strDBFileName

DestConn=Jet_Conn_Partial&AppPath()&"Temp"&strDBFileName

SetoFSO=Server.CreateObject("Scripting.FileSystemObject")

SetoJetEngine=Server.CreateObject("JRO.JetEngine")

WithoFSO

IfNot.FileExists(AppPath()&strDBFileName)Then

ErrMsg("数据库文件未找到!!!!")

Stop

CompactDBFile=False

ExitFunction

Else

If.FileExists(AppPath()&"Temp"&strDBFileName)Then

ErrMsg("不知道的错误!!!")

.DeleteFile(AppPath()&"Temp"&strDBFileName)

CompactDBFile=False

ExitFunction

EndIf

EndIf

EndWith

WithoJetEngine

.CompactDatabaseSourceConn,DestConn

EndWith

oFSO.DeleteFileAppPath()&strDBFileName

oFSO.MoveFileAppPath()&"Temp"&strDBFileName,AppPath()&strDBFileName

SetoFSO=Nothing

SetoJetEngine=Nothing

CompactDBFile=True

EndFunction

EndClass

DimManDb

SetManDb=NewRLManDBCls

'//---------连接SQL数据库--------------

'ManDb.DBType="SQL"

'ManDb.ServerName="TAO-KUIZU"

'ManDb.UserName="sa"

'ManDb.Password="123456"

'ManDb.DBPath="hhstuss"

'ManDb.CreateTable"cexo255","idintNotNullPRIMARYKEY,Namevarchar(20)NotNull"'建立表(表名)

'ManDb.ReNameTable"cexo255","cexo2552"'表改名(旧表名,新表名)(用组件)

'ManDb.DelTable"cexo255"'删除表(表名)

'ManDb.AddColumn"cexo255","Sex","varchar(2)null"'建立表结构(表名,字段名,数据类型)

'ManDb.ModColumn"cexo255","name","intNotnull"'修改表结构(表名,字段名,新数据类型)_

'ManDb.DelColumn"cexo255","Sex"'删除表结构(表名,字段名)

'ManDb.AddIndex"cexo255","i_ID","ID"'建立表索引(表名,索引名,索引字段名)

'ManDb.DelIndex"cexo255","i_ID"'删除表索引(表名,索引名)

'ManDb.AddPRIMARYKEY"cexo255","name"'建立表主键(表名,主键字段名)

'ManDb.DelPRIMARYKEY"cexo255","name"'删除表主键(表名,主键字段名)_

'Response.WriteManDb.GetPrimaryKey("cexo255")'取表的主键(表名)

'ManDb.upColumn"cexo255","id",12345,"name=1"'修改字段的值

'ManDb.Execute"insert空格intocexo255(id,Name)values(2,2)"'添加记录

'ManDb.Execute"Updatecexo255Setid=3WhereName=2"'修改记录

'ManDb.Execute"delete空格Fromcexo255WhereName=2"'删除记录

'ManDb.Execute("SelectCount(*)Fromcexo255"):Response.WriteManDb.Count'统计记录个数

'IfManDb.CheckTable("StudInfo")THenResponse.Write"StudInfo表存在!!!"ElseResponse.Write"StudInfo表不存在!!!"

'//-----------End--------------------------

'//---------连接Access数据库--------------

ManDb.DBType="ACCESS"

ManDb.DBPath="test.mdb"

'ManDb.CreateDBfile"test2.mdb",""'建立数据库(数据库名,保存路径)

'ManDb.DeleteDBFile("test2.mdb")'删除数据库(数据库名)

'ManDb.RenameDBFile"test2.mdb","test3.mdb"'数据库改名(旧数据库名,新数据库名)

'ManDb.CompactDBFile("test3.mdb")'压缩数据库(数据库名)

'ManDb.CreateTable"dw",""'建立表(表名)

'ManDb.ReNameTable"dw","dw2"'表改名(旧表名,新表名)(用组件)_

'ManDb.DelTable"dw"'删除表(表名)

'ManDb.AddColumn"cexo255","name","varchar(255)Notnull"'建立表结构(表名,字段名,数据类型)

'ManDb.ModColumn"cexo255","name","intNotnull"'修改表结构(表名,字段名,新数据类型)

'ManDb.DelColumn"cexo255","name"'删除表结构(表名,字段名)

'ManDb.AddIndex"cexo255","UserID","ID"'建立表索引(表名,索引名,索引字段名)

'ManDb.DelIndex"cexo255","UserID"'删除表索引(表名,索引名)_

'ManDb.AddPRIMARYKEY"cexo255","id"'建立表主键(表名,主键字段名)

'ManDb.DelPRIMARYKEY"cexo255","id"'删除表主键(表名,主键字段名)_

'Response.WriteManDb.GetPrimaryKey("cexo255")'取表的主键(表名)

'ManDb.upColumn"cexo255","id","12345","id='12'"'修改字段的值

'ManDb.Execute"insert空格intocexo255(id)values('789')"'添加记录

'ManDb.Execute"Updatecexo255Setid='wxf'Whereid='789'"'修改记录

'ManDb.Execute"delete空格Fromcexo255Whereid='wxf'"'删除记录

ManDb.Execute("SelectCount(*)Fromcexo255"):Response.WriteManDb.Count'统计记录个数

'IfManDb.CheckTable("StudInfo")THenResponse.Write"StudInfo表存在!!!"ElseResponse.Write"StudInfo表不存在!!!"

'//-----------End--------------------------

SetManDb=Nothing

%>

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