1.case應用和||應用例項
select o.oidleft || o.oidrite || o.oidtype as onuid,
d.nmsuserlabel as 裝置名稱,
c.name as 裝置編碼,
'' as 接入型別,
'' as 所屬機房id,
o.location3 as 所屬機房,
o.networkid as 所屬ems,
d.nmschnlabel as 安裝具體位址描述,
'' as 歸屬分光器,
c.nodeid as oltip,
c.ontid as ontid，
c.oltoidleft || c.oltoidrite || c.oltoidtype as 歸屬olt,
c.oltptpoidleft || c.oltptpoidrite || c.oltptpoidtype as 歸屬olt的pon口主用,
'' as 歸屬olt的pon口備用,
'' as 產權,
case
when a.vendor = 100 then
'cisco'
when a.vendor = 104 then
'alcatel-lucent'
when a.vendor = 115 then
'華為'
when a.vendor = 116 then
'中興'
when a.vendor = 125 then
'烽火'
when a.vendor = 126 then
'h3c'
when a.vendor = 127 then
'銳捷'
end as 廠家名稱,
c.onttype as 規格型號,
case
when o.installationstatus = 1 then
'入網'
when o.installationstatus = 2 then
'未入網'
when o.installationstatus = 3 then
'拆除'
when o.installationstatus = 4 then
'關機'
end as 網元狀態,
c.ontsoftwareversion as 版本資訊,
'' as 入網時間,
'' as 退網時間,
'' as 覆蓋範圍,
c.ipaddr as 裝置管理位址,
c.macaddr as 裝置註冊mac位址,
'' as 網域名稱標識,
'' as 語音的ip位址,
c.olttimeslot as onu的id號
from nmsnetworkelement o, nodetypemap a, ont c, nmsnetworkelement d
where o.nodetype = a.typeid
and o.nodeid = c.nodeid
and o.networkid = c.networkid
and c.ontid = d.nodeid
and c.networkid = d.networkid
2.update級聯更新
update oltvoipservice x set x.phnum = (select y.phone from resources_oltvoipservice y where x.ip = y.ip and x.tid = y.tid)
where exists (select 1 from resources_oltvoipservice y where x.ip = y.ip and x.tid = y.tid)
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