说明： oracle xmltype类型字段的数据插入和检索
(oracle xmltype type field data insertion and retrieval)
文件列表：
oracleXmlTest
.............\mcc.xml
.............\mcc1.xml
.............\oracleXmlTest
.............\.............\bin
.............\.............\...\Debug
.............\.............\Form1.cs
.............\.............\Form1.Designer.cs
.............\.............\Form1.resx
.............\.............\mcc.xml
.............\.............\obj
.............\.............\...\Debug
.............\.............\...\oracleXmlTest.csproj.FileList.txt
.............\.............\oracleXmlTest.csproj
.............\.............\Program.cs
.............\.............\Properties
.............\.............\..........\AssemblyInfo.cs
.............\.............\..........\Resources.Designer.cs
.............\.............\..........\Resources.resx
.............\.............\..........\Settings.Designer.cs
.............\.............\..........\Settings.settings
.............\oracleXmlTest.sln
