2012-10-23 23 views
1

我重寫了一些代碼從sql到sql_oracle,但我無法找到一種溶劑<>''。翻譯<>''到sql_oracle

!=''不起作用。

如果我可以翻譯<>''它應該工作。我已經googled很多,但沒有找到任何awnsers ..即時通訊沒有編碼經驗,所以也許有人可以幫助我。

這SQL代碼

SQL_genericp2.Insert(
      "from tsdsmd trip       " 
      "  left outer join       " 
      "  (          " 
      "  select tsroma.* from tsroma   " 
      "  where tsroma.tstohn <> ''    " 
      "  )  leg        " 
      "  on  trip.dosvlg = leg.tsrido  " 
      "  left outer join dosier shipment   " 
      "  on  leg.dosvlg = shipment.dosvlg " 
      "  left outer join       " 
      "  (          " 
      "  select * from tsdsco     " 
      "  where laloin = 1 and volgnr = 1  " 
      "  )  tsdsco1       " 
      "  on  leg.dosvlg = tsdsco1.dosvlg  " 
      "  left outer join       " 
      "  (          " 
      "  select * from tsdsco     " 
      "  where laloin = 2 and volgnr = 1  " 
      "  )  tsdsco2       " 
      "  on  leg.dosvlg = tsdsco2.dosvlg  " 
      ,1); 
    </i> 

這是sql_orcale代碼:

SQL_Oracle_genericp2.Insert(
      "from              " 
      "  \"dkf_tsdsmd\"                trip  " 
      "              " 
      "  left outer join           " 
      "  (select * from \"dkf_tsroma\" where \"tstohn\" != '')      leg  " 
      "  on  trip.\"dosvlg\" = leg.\"tsrido\"        " 
      "              " 
      " left outer join            " 
      "  \"dkf_tsdsmd\"                 shipment " 
      "  on  leg.\"dosvlg\" = shipment.\"dosvlg\"        " 
      "              " 
      " left outer join            " 
      " (             " 
      " select             " 
      "  \"fileNumber\"         \"dosvlg\", " 
      "  max(case when \"addressRole\" = 0 then \"relationSearchname\" else null end) \"zoek0\", " 
      "  max(case when \"addressRole\" = 0 then \"nameLine1\"  else null end) \"tsnam10\", " 
      "  max(case when \"addressRole\" = 0 then \"streetLine1\"  else null end) \"tsadr10\", " 
      "  max(case when \"addressRole\" = 0 then \"countryCode\"  else null end) \"land0\", " 
      "  max(case when \"addressRole\" = 0 then \"placeName\"  else null end) \"tscity0\", " 
      "  max(case when \"addressRole\" = 0 then \"postcode\"  else null end) \"postun0\", " 
      "              " 
      "  max(case when \"addressRole\" = 1 then \"relationSearchname\" else null end) \"zoek1\", " 
      "  max(case when \"addressRole\" = 1 then \"nameLine1\"  else null end) \"tsnam11\", " 
      "  max(case when \"addressRole\" = 1 then \"streetLine1\"  else null end) \"tsadr11\", " 
      "  max(case when \"addressRole\" = 1 then \"countryCode\"  else null end) \"land1\", " 
      "  max(case when \"addressRole\" = 1 then \"placeName\"  else null end) \"tscity1\", " 
      "  max(case when \"addressRole\" = 1 then \"postcode\"  else null end) \"postun1\", " 
      "              " 
      "  max(case when \"addressRole\" = 3 then \"relationSearchname\" else null end) \"zoek3\", " 
      "  max(case when \"addressRole\" = 3 then \"nameLine1\"  else null end) \"tsnam13\", " 
      "  max(case when \"addressRole\" = 3 then \"streetLine1\"  else null end) \"tsadr13\", " 
      "  max(case when \"addressRole\" = 3 then \"countryCode\"  else null end) \"land3\", " 
      "  max(case when \"addressRole\" = 3 then \"placeName\"  else null end) \"tscity3\", " 
      "  max(case when \"addressRole\" = 3 then \"postcode\"  else null end) \"postun3\", " 
      "              " 
      "  max(case when \"addressRole\" = 4 then \"relationSearchname\" else null end) \"zoek4\", " 
      "  max(case when \"addressRole\" = 4 then \"nameLine1\"  else null end) \"tsnam14\", " 
      "  max(case when \"addressRole\" = 4 then \"streetLine1\"  else null end) \"tsadr14\", " 
      "  max(case when \"addressRole\" = 4 then \"countryCode\"  else null end) \"land4\", " 
      "  max(case when \"addressRole\" = 4 then \"placeName\"  else null end) \"tscity4\", " 
      "  max(case when \"addressRole\" = 4 then \"postcode\"  else null end) \"postun4\" " 
      " from             " 
      "  \"dkf_v_cw_fileAddress\"         " 
      " group by            " 
      "  \"fileNumber\"           " 
      " )           tsdnaw  " 
      " on leg.\"dosvlg\" = tsdnaw.\"dosvlg\"        " 
      "              " 
      " left outer join            " 
      " (             " 
      " select             " 
      "  \"dkf_tsdsco\".\"dosvlg\"       \"dosvlg\", " 
      "  max(case when \"laloin\" = 1 and \"volgnr\" = 1 then \"tsfrti\" else null end) \"tsfrti1\", " 
      "  max(case when \"laloin\" = 1 and \"volgnr\" = 1 then \"tsttim\" else null end) \"tsttim1\", " 
      "  max(case when \"laloin\" = 2 and \"volgnr\" = 1 then \"tsfrti\" else null end) \"tsfrti2\", " 
      "  max(case when \"laloin\" = 2 and \"volgnr\" = 1 then \"tsttim\" else null end) \"tsttim2\" " 
      " from             " 
      "  \"dkf_tsdsco\"           " 
      " group by            " 
      "  \"dosvlg\"           " 
      " )           tsdsco  " 
      "  on leg.\"dosvlg\" = tsdsco.\"dosvlg\"        " 
      ,1); 

回答

2
tsroma.tstohn <> '' 

甲骨文對待空字符串爲NULL。因此,在這種情況下,你必須把它寫成

tsroma.tstohn IS NOT NULL 

你還需要想一想如果空字符串成爲NULL是你的數據模型的一個問題。

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