操作oracle 写和读可以,修改和删除不能操作,请问是怎么回事?
Statement   stmt   =   myconn.createStatement();
//stmt.executeUpdate( "UPDATE   TBLUSER   SET   PASSWORD= 'XABCA ' ");       //我把下面的写注释了,然后把   删除的注释拿了就始终不能执行,数据库的权限是   SYSTEM  
  stmt
.execute( "insert   into   TBLUSER(   username   ,password,question,answer,realname,phone,email,mobilephone,msgwakeup,emailwakeup,companymarketchoose   ,companymarketcode,zipcode,province,city,address,investmoney                 ,salesdepartment,partnercode1,partnercode2)   values( ' "
+   username
+   " ', ' "
+   password
+   " ', ' "
+   question
+   " ', ' "
+   answer
+   " ', ' "
+   realname
+   " ', ' "
+   phone
+   " ', ' "
+   email
+   " ', ' "
+   mobilephone
+   " ', ' "
+   msgwakeup
+   " ', ' "
+   emailwakeup
+   " ', ' "
+   companymarketchoose
+   " ', ' "
+   companymarketcode
+   " ', ' "
+   zipcode
+   " ', ' "
+   province
+   " ', ' "
+   city
+   " ', ' "
+   address
+   " ', ' "
+   investmoney
+   " ', ' "
+   salesdepartment
+   " ', ' "
+   partnercode1
+   " ', ' "
+   partnercode2   +   " ') ");

------解决方案--------------------
这问题描述的。。。看不懂