抓虫子：RA-06550...nPLS-00306: 调用 'MEETING_NOTICE_CREATE' 时参数个数或类型

抓虫子："System.Data.OracleClient.OracleException: ORA-06550: 第 1 行, 第 7 列: \nPLS-00306: 调用 'MEETING_NOTICE_CREATE' 时参数个数或类型

这个错误折腾了我好久好久（几个小时），然后扔到一边，今天一个一个参数的排除，终于知道原因啦 T.T

实体类的属性没有赋初始值，null值插入就会出现这种错误  所以记得赋值呀,string就设为string.empty得了吧

扔个实体类的codesmith:

<% @ CodeTemplate Language = " C# "  TargetLanguage = " Text "  Src = ""  Inherits = ""  Debug = " False "  Description = " Template description here. "   %>
<% @ Assembly Name = " SchemaExplorer "   %>
<% @ Assembly Name = " System.Design "   %>
<% @ Assembly Name = " System.Data.OracleClient "   %>
<% @ Import Namespace = " System.Data.OracleClient "   %>
<% @ Import Namespace = " SchemaExplorer "   %>
<% @ Property Name = " SourceTables "  Type = " SchemaExplorer.TableSchemaCollection "  Category = " Connection "  Description = " Tables of the sytem. "   %>
<% @ Assembly Name = " System.Data "   %>
<% @ Import Namespace = " System.Data "   %>
<%  WriteData(); %>
< script runat = " template " >
//  My methods here.
public  void  WriteData() {
    Response.Write(@"private const int INT_INIT = 0;
private const string INT_STRING = string.Empty;
private const DateTime INI_DATE = System.DateTime.MaxValue;");
Response.Write("\r\n\r\n");

    foreach(TableSchema table in SourceTables){
        //Response.Write("public class "+table.Name+"\r\n{\r\n");
        foreach(ColumnSchema column in table.Columns){
            Response.Write("private "+GetDbType(column.DataType)[0]+" _"+column.Name.ToLower()+ GetDbType(column.DataType)[1] + ";\r\n");
            Response.Write("///<summary>\r\n///"+column.Description+"\r\n///</summary>\r\n");
            Response.Write("public "+GetDbType(column.DataType)[0]+" "+column.Name+"\r\n{\r\n");
            Response.Write("get{return _"+column.Name.ToLower()+";}\r\n");
            Response.Write("set{_"+column.Name.ToLower()+"=value;}\r\n}\r\n\r\n");
        }
        //Response.Write("\r\n}\r\n");
    }
}  

public string GetDbTypeStr(System.Data.DbType type) {
    return type.ToString();
    }

public string[] GetDbType(System.Data.DbType type) {
    string ret=string.Empty;
    string iv = string.Empty;
    
    switch(type){
        case DbType.String :
            ret="string";
            iv=" = INI_STRING";
            break;
        case (DbType)System.Data.OracleClient.OracleType.Number:
        case DbType.Int32 :
            ret="int";
            iv=" = INI_INT";
            break;
        case DbType.Int16 :
            ret="short";
            iv=" = INI_INT";
            break;
        case DbType.Int64 :
            ret="int";
            iv=" = INI_INT";
            break;
        case DbType.DateTime :
            ret="DateTime" ;
            iv=" = INI_DATE";
            break;
        case DbType.Boolean:
            ret="bool";
            break;
        case DbType.Decimal:
            ret="decimal";
            break;
        case DbType.Double:
            ret="double";
            break;
    }
    return new string[]{ret,iv};
}
</ script >