1.Access数据库的DSN-less连接方法: set adocon=Server.Createobject("adodb.connection") adoconn.Open"Driver={Microsoft Access Driver(*.mdb)};DBQ="& _ Server.MapPath("数据库所在路径") 2.Access OLE DB连接方法: set adocon=Server.Createobject("adodb.connection") adocon.open"Provider=Microsoft.Jet.OLEDB.4.0;"& _ "Data Source=" & Server.MapPath("数据库所在路径") 3.SQL server连接方法: set adocon=server.createobject("adodb.recordset") adocon.Open"Driver={SQL Server};Server=(Local);UID=***;PWD=***;"& _ "database=数据库名;" 4.SQL server OLE DB连接方法: set adocon=Server.Createobject("adodb.connection") adocon.open"provider=SQLOLEDB.1;Data Source=RITANT4;"& _ "user ID=***;Password=***;"& _ "inital Catalog=数据库名" 5.Oracle 连接方法: set adocon=Server.Createobject("adodb.connection") adocon.open"Driver={microsoft odbc for oracle}; server=oraclesever.world;uid=admin;pwd=pass;" 6.Oracle OLE DB 连接方法: set adocon=Server.Createobject("adodb.connection") adocon.open"Provider=OraOLEDB.Oracle; data source=dbname;user id=admin;password=pass;" 7.dBase 连接方法: set adocon=Server.Createobject("adodb.connection") adocon.open"Driver={microsoft dbase driver(*.dbf)}; driverid=277;dbq=------------;" 8.mySQL 连接方法: set adocon=Server.Createobject("adodb.connection") adocon.open"Driver={mysql};database=yourdatabase; uid=username;pwd=yourpassword;option=16386;" 9.Visual Foxpro 连接方法: set adocon=Server.Createobject("adodb.connection") adocon.open"Driver={microsoft Visual Foxpro driver}; sourcetype=DBC;sourceDB=*.dbc;Exclusive=No;" 10.MS text 连接方法: set adocon=Server.Createobject("adodb.connection") adocon.open"Driver={microsoft text driver(*.txt; *.csv)};dbq=-----;"&_ "extensions=asc,csv,tab,txt;Persist SecurityInfo=false;" 11.MS text OLE DB 连接方法: set adocon=Server.Createobject("adodb.connection") adocon.open"Provider=microsof.jet.oledb.4.0;data source=your_path;"&_ "Extended Properties’text;FMT=Delimited’" |
1.查询数据记录(Select) 语法:Select 字段串行 From table Where 字段=内容 例子:想从user表中找出作者为"cancer"的所有记录,SQL语句便如下: select * from user where author=’cancer’ "*"是取出user表所有的字段,如查询的字段值为数字,则其后的"内容"便无须加上单引号,如是日期,则在Access中用(#)包括,而在SQL server中则用(’)包括, 如: select * from user where id=1 select * from user where pub_date=#2002-1-7# (Access) select * from user where pub_date=’2002-1-7’ (SQL Server) 提示: 日期函数to_date不是标准sql文,不是所有的数据库适用,所以大家在使用的时候要参考数据库具体语法 另外如果是查询传入的变量,则如下: strau=request.form("author") strsql="select * from user where author=’"&strau&"’" 如果查询的是数字,则: intID=request.form("id") strsql="select * from user where id="&intID ! 在很多数据库中,如:oracle,上面的语句是可以写成: strsql="select * from user where id=’"&intID&"’" 但是字符型一定不能按照数字格式写,需要注意。 2.添加记录(Insert) 语法: Insert into table(field1,field2,....) Values (value1,value2,....) 例子:添加一作者是"cancer"的记录入user表: insert into user (userno,author,username) values (’CF001’,’cancer’,’Cancer无组件上传程序’) 同样,如果用到变量就如下: ! strno=request.form("userno") strau=request.form("author") strname=request.form("username") strsql="insert into user (userno,author,username) values (’"&strno&"’,’"&strau&"’,’"&strname&"’)" 3.用Recordset对象的Addnew插入数据的方法: 语法: rs.addnew rs("field1").value=value1 rs("field2").value=value2 ... rs.update 4.修改数据记录(Update) 语法: update table set field1=value1,field2=value2,...where fieldx=valuex 例子: update user set author=’babycrazy’ where userno=’CF001’ 如果用到变量就如下: strno=request.form("userno") strau=request.form("author") strsql="update user set author=’"&strau&"’ where userno=’"&strno"’" 5.Recordset对象的Update方法: 语法: rs("field1").value=value1 rs("field2").value=value2 ... rs.update 例子: strno=request.form("userno") strau=request.form("author") set adocon=server.createobject("adodb.connection") adocon.open "Driver={Microsoft Access Driver(*.mdb)};DBQ=" & _ Server.Mappath=("/cancer/cancer.mdb") strsql="select * from user where userno=’"&strno&"’" set rs=server.createobject("adodb.recordset") rs.open strsql,adconn,1,3 if not rs.eof then ’如果有此记录的话 rs("author").value=strau rs.update end if rs.close set rs=nothing adocon.close set adocon=nothing 6.删除一条记录(Delete) 语法: Delete table where field=value 例子:删除user表中作者是cancer的记录 delete user where author=’cancer’ |
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