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多表查询返回多个DataTable并合并到一个Table中

作者 佚名技术 来源 NET编程 浏览 发布时间 2012-05-20
d.runtime,s.status,s.failcode from " + sendTables[i] + " as d," + statusTables[i] + " as s " +
 26                                    "where d.id=s.id and d.maildomain=" + "\"" + mdomain + "\"" + " and d.mailuser=" + "\"" + muser + "\"");
 27                if (mstatus != "all")
 28                {
 29                    sbCommand.Append(" and s.status=" + "\"" + mstatus + "\"");
 30                }
 31                if (mtype == "jobs")
 32                {
 33                    sbCommand.Append(" and (d.host!=''quickmail6'' and d.host!=''quickmail7'')");
 34                }
 35                else
 36                {
 37                    sbCommand.Append(" and (d.host=''quickmail6'' or d.host=''quickmail7'')");
 38                }
 39                sbCommand.Append("order by d.runtime  asc");
 40                strSelect[i] = sbCommand.ToString();
 41            }
 42            return strSelect;
 43        }
 44        private static string[] PrepareExportString2(string[] sendTables, string [] statusTables, string muser, string mdomain, string mstatus, string mtype)
 45        {
 46            string[] strSelect = new string[sendTables.Length];
 47            StringBuilder sbCommand2 = new StringBuilder();
 48            for (int i = 0; i < sendTables.Length; i++)
 49            {
 50                StringBuilder sbCommand = new StringBuilder(@"select cast(d.rundate as char(10)) as rundate,d.runtime,s.status,s.failcode from " + sendTables[i] + " as d," + statusTables[i] + " as s " +
 51                                    "where d.id=s.id and d.maildomain=" + "\"" + mdomain + "\"" + " and d.mailuser=" + "\"" + muser + "\"");
 52                if (mstatus != "all")
 53                {
 54                    sbCommand.Append(" and s.status=" + "\"" + mstatus + "\"");
 55                }
 56                if (mtype == "jobs")
 57                {
 58                    sbCommand.Append(" and (d.host!=''quickmail6'' and d.host!=''quickmail7'')");
 59                }
 60                else
 61    

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