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SQl XmlºÍC# XmlÊý¾ÝµÄÒ»µã²Ù×÷×ܽá
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1.Ê×ÏȽ¨Á¢Ò»Õź¬ÓÐxmlÊý¾ÝÀàÐ͵ıí
CREATE TABLE [dbo].[TestXml](
 [ID] [bigint] IDENTITY(1,1) NOT NULL,
 [Message] [xml] NULL,
 CONSTRAINT [PK_TestXml] PRIMARY KEY CLUSTERED
(
 [ID] ASC
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
2.´´½¨ÏàÓ¦µÄDataSet
×¢ÒâĬÈÏMessageÊÇStringÀàÐÍ£¬Îª´ËÎÒÃÇÒª°ÑËü¸ÄΪXDocument»òÔòXmlDocument£¬È磺
 [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
            public XDocument Message {
                get {
                    try {
                        string xmlstr=  ((string)(this[this.tableTestXml.MessageColumn]));
                       return  XDocument.Parse(xmlstr);
                    }
                    catch (global::System.InvalidCastException e) {
                        throw new global::System.Data.StrongTypingException("±í“TestXml”ÖÐÁГMessage”µÄֵΪ DBNull¡£", e);
                    }
      


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CREATE TABLE [t_ActivityRecord] (
[activityId] [nchar]  (10) NOT NULL,
[activityName] [nvarchar]  (50) NOT NULL,
[activityMark] [decimal]  (18,3) NOT NULL,
[activityStatement] [ntext]  NOT NULL,
[activityDateTime] [date]  NOT ......

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  Èç¹ûÉè¼Æʱ²»¿ÉÒÔΪnull,Ëü¾Í»áĬÈÏΪ:   '1900-01-01'
CREATE proc UP_Rsk_AddModel  @ygcode varchar(6),  @name varchar(8),  @xb varchar(2),  @bm varchar(32),  @jg varchar(16),  @mz varchar(16) ......

SQL 2000Óû§×Ô¶¨Ò庯Êý

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select sql_text, spid, v$session.program, process
  from v$sqltext, v$session, v$process
  where v$sqltext.address = v$session.sql_address
  and v$sqltext.hash_value = v$session.sql_hash_value
  and v$session.paddr = v$process.addr
  and v$process.spid in (4335);
×¢Ò ......

Sql helperʹÓ÷½·¨

    public List<FirmAttachmentModel> LoadFirmAttachmentByFirmId(int FirmId, int pageIndex, int pageSize)
        {
            List<FirmAttachmentModel> result = new List<FirmAtt ......
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