Question

我在webapp中的mysql中有四个查询，我试图将其转换为oracle查询。但是，当我尝试运行新查询时，日期时间字符串中断。有人可以帮我弄清楚我做错了吗？

PostGreSql查询： -

插入o_stat_daily                                     （businesspath，渣油，日，值）
                                    （选择businesspath，                                         int8（substring（businesspath from position（＆＃39;：＆＃39; in businesspath）+ 1 for position（＆＃39;]＆＃39; businesspath） - position（＆＃39;：＆＃39; in   businesspath） - 1）），                                         date_trunc（＆＃39; day＆＃39;，creationdate）为d，                                         将（*）计为c                                     来自o_loggingtable，其中actionverb =＆＃39; launch＆＃39;和actionobject =＆＃39;节点＆＃39;和businesspath！=＆＃39;＆＃39; group by businesspath，d）;

插入o_stat_weekly                                     （businesspath，渣油，本周的值）
                                    （选择businesspath，                                         int8（substring（businesspath from position（＆＃39;：＆＃39; in businesspath）+ 1 for position（＆＃39;]＆＃39; businesspath） - position（＆＃39;：＆＃39; in   businesspath） - 1）），                                         to_char（creationdate，＆＃39; IYYY＆＃39;）|| ＆＃39; - ＆＃39; || to_char（creationdate，＆＃39; IW＆＃39;）为d，                                         将（*）计为c                                     来自o_loggingtable，其中actionverb =＆＃39; launch＆＃39;和actionobject =＆＃39;节点＆＃39;和businesspath！=＆＃39;＆＃39; group by businesspath，d）;

插入o_stat_dayofweek                                     （businesspath，渣油，日，值）
                                    （选择businesspath，                                         int8（substring（businesspath from position（＆＃39;：＆＃39; in businesspath）+ 1 for position（＆＃39;]＆＃39; businesspath） - position（＆＃39;：＆＃39; in   businesspath） - 1）），                                         int8（to_char（creationdate，＆＃39; D＆＃39;））为d，                                         将（*）计为c                                     来自o_loggingtable，其中actionverb =＆＃39; launch＆＃39;和actionobject =＆＃39;节点＆＃39;和businesspath！=＆＃39;＆＃39; group by businesspath，d）;

插入o_stat_hourofday                                     （businesspath，渣油，小时，值）
                                    （选择businesspath，                                         int8（substring（businesspath from position（＆＃39;：＆＃39; in businesspath）+ 1 for position（＆＃39;]＆＃39; businesspath） - position（＆＃39;：＆＃39; in   businesspath） - 1）），                                         int8（to_char（creationdate，＆＃39; HH24＆＃39;））为d，                                         将（*）计为c                                     来自o_loggingtable，其中actionverb =＆＃39; launch＆＃39;和actionobject =＆＃39;节点＆＃39;和businesspath！=＆＃39;＆＃39; group by businesspath，d）;

Oracle查询： -

插入o_stat_daily                                         （businesspath，渣油，日，值）
                                        （选择businesspath，                                             convert（subspath（businesspath，locate（＆＃39;：＆＃39;，businesspath）+ 1，找到（＆＃39;]＆＃39;，businesspath） - 找到（＆＃39;：＆＃39;， businesspath） - 1），int），                                             转换（creationdate，date）d，                                             count（*）c                                         来自o_loggingtable，其中actionverb =＆＃39; launch＆＃39;和actionobject =＆＃39;节点＆＃39;和businesspath！=＆＃39;＆＃39; group by businesspath，d）;

插入o_stat_weekly                                     （businesspath，渣油，本周的值）
                                    （选择businesspath，                                         convert（subspath（businesspath，locate（＆＃39;：＆＃39;，businesspath）+ 1，找到（＆＃39;]＆＃39;，businesspath） - 找到（＆＃39;：＆＃39;， businesspath） - 1），int），                                         年（creationdate）+＆＃39; - ＆＃39; +重复（＆＃39; 0＆＃39;，2-length（转换（（dayofyear（creationdate）-dayofweek（creationdate））/ 7，varchar（7））））+转换（（DAYOFYEAR（creationdate）-dayofweek（creationdate））/ 7，VARCHAR（7））   d，                                         count（*）c                                     来自o_loggingtable，其中actionverb =＆＃39; launch＆＃39;和actionobject =＆＃39;节点＆＃39;和businesspath！=＆＃39;＆＃39; group by businesspath，d）;

插入o_stat_dayofweek                                     （businesspath，渣油，日，值）
                                    （选择businesspath，                                         convert（subspath（businesspath，locate（＆＃39;：＆＃39;，businesspath）+ 1，找到（＆＃39;]＆＃39;，businesspath） - 找到（＆＃39;：＆＃39;， businesspath） - 1），int），                                         dayofweek（creationdate）d，                                         count（*）c                                     来自o_loggingtable，其中actionverb =＆＃39; launch＆＃39;和actionobject =＆＃39;节点＆＃39;和businesspath！=＆＃39;＆＃39; group by businesspath，d）;

插入o_stat_hourofday                                     （businesspath，渣油，小时，值）
                                    （选择businesspath，                                         convert（subspath（businesspath，locate（＆＃39;：＆＃39;，businesspath）+ 1，找到（＆＃39;]＆＃39;，businesspath） - 找到（＆＃39;：＆＃39;， businesspath） - 1），int），                                         小时（creationdate）d，                                         count（*）c                                     来自o_loggingtable，其中actionverb =＆＃39; launch＆＃39;和actionobject =＆＃39;节点＆＃39;和businesspath！=＆＃39;＆＃39; group by businesspath，d）;

Answer 1

我没有重写你的所有查询，而是采用了最后一个查询。

oracle查询应该是这样的：

INSERT INTO o_stat_hourofday (
   businesspath,
   resid,
   hour,
   VALUE
)
SELECT businesspath,
       TO_NUMBER (
          SUBSTR (
             businesspath,
             INSTR(businesspath, ':') + 1,
             INSTR(businesspath, ']') - INSTR(businesspath, ':') - 1
          )
       ),
       TO_NUMBER(TO_CHAR(creationdate, 'HH24')) d,
       COUNT (*) c
  FROM o_loggingtable
 WHERE actionverb = 'launch'
   AND actionobject = 'node'
   AND businesspath IS NOT NULL
 GROUP BY businesspath,
          TO_NUMBER (
             SUBSTR (
                businesspath,
                INSTR(businesspath, ':') + 1,
                INSTR(businesspath, ']') - INSTR(businesspath, ':') - 1
             )
          ), 
          TO_NUMBER(TO_CHAR(creationdate, 'HH24'));

仅供参考，Oracle无法识别HOUR函数，而oracle中的CONVERT将一个字符集转换为另一个字符集，而不是字符串转换为数字。 LOCATE也不是Oracle函数，您需要使用INSTR来查找字符串中的字符。

阅读TO_CHAR（包括日期格式等），TO_NUMBER和INSTR。

希望这能帮到你！

Answer 2

我还对其余三个查询进行了调查。他们都在工作。感谢Ollie的帮助。

INSERT INTO o_stat_daily (
   businesspath,
   resid,
   DAY,
   VALUE
)
SELECT businesspath,
       TO_NUMBER (
          SUBSTR (
             businesspath,
             INSTR(businesspath, ':') + 1,
             INSTR(businesspath, ']') - INSTR(businesspath, ':') - 1
          )
       ),
       to_date(creationdate)
       d,
       COUNT (*) c
  FROM o_loggingtable
 WHERE actionverb = 'launch'
   AND actionobject = 'node'
   AND businesspath IS NOT NULL
 GROUP BY businesspath,
          TO_NUMBER (
             SUBSTR (
                businesspath,
                INSTR(businesspath, ':') + 1,
                INSTR(businesspath, ']') - INSTR(businesspath, ':') - 1
             )
          ), 
          to_date(creationdate);



INSERT INTO o_stat_weekly (
   businesspath,
   resid,
   WEEK,
   VALUE
)
SELECT businesspath,
       TO_NUMBER (
          SUBSTR (
             businesspath,
             INSTR(businesspath, ':') + 1,
             INSTR(businesspath, ']') - INSTR(businesspath, ':') - 1
          )
       ),
       to_char(creationdate, 'IYYY') || '-' || to_char(creationdate, 'IW') 
       d,
       COUNT (*) c
  FROM o_loggingtable
 WHERE actionverb = 'launch'
   AND actionobject = 'node'
   AND businesspath IS NOT NULL
 GROUP BY businesspath,
          TO_NUMBER (
             SUBSTR (
                businesspath,
                INSTR(businesspath, ':') + 1,
                INSTR(businesspath, ']') - INSTR(businesspath, ':') - 1
             )
          ), 
          to_char(creationdate, 'IYYY') || '-' || to_char(creationdate, 'IW') ;

INSERT INTO o_stat_dayofweek (
   businesspath,
   resid,
   day,
   VALUE
)
SELECT businesspath,
       TO_NUMBER (
          SUBSTR (
             businesspath,
             INSTR(businesspath, ':') + 1,
             INSTR(businesspath, ']') - INSTR(businesspath, ':') - 1
          )
       ),
       TO_NUMBER(TO_CHAR(creationdate, 'D')) d,
       COUNT (*) c
  FROM o_loggingtable
 WHERE actionverb = 'launch'
   AND actionobject = 'node'
   AND businesspath IS NOT NULL
 GROUP BY businesspath,
          TO_NUMBER (
             SUBSTR (
                businesspath,
                INSTR(businesspath, ':') + 1,
                INSTR(businesspath, ']') - INSTR(businesspath, ':') - 1
             )
          ), 
          TO_NUMBER(TO_CHAR(creationdate, 'D'));

将查询从mysql转换为oracle时出错

2 个答案: