如何合并这些将列插入表的查询答案

【问题标题】：How to merge these queries that insert columns to table如何合并这些将列插入表的查询
【发布时间】：2019-04-07 04:42:13
【问题描述】：

我已经使用光标选择了这些数据。像这样，我可以插入每个数据。我只需要在一个插入命令中合并该查询。

CURSOR moc_local_call_records
      IS
      SELECT RECIPIENT, COUNT(*) N_CNT
      FROM (SELECT RECIPIENT,
                   SERVICE_TYPE,
                   MPS_SWTCH_CD,
                   MPS_FTR_CD1
            FROM ABA_RM_INB_USAGE
            WHERE SERVICE_TYPE = 100
               OR SERVICE_TYPE = 0
              AND MPS_SWTCH_CD = 'T11'
              AND MPS_FTR_CD1 = 1033)
      GROUP BY RECIPIENT;

CURSOR moc_local_home_records
      IS
      SELECT RECIPIENT, COUNT(*) N_CNT
      FROM (SELECT RECIPIENT,
                   SERVICE_TYPE,
                   MPS_FTR_CD1
            FROM ABA_RM_INB_USAGE
            WHERE SERVICE_TYPE = 100
               OR SERVICE_TYPE = 0
              AND MPS_FTR_CD1 = 1031)
      GROUP BY RECIPIENT;

像这样我可以插入每个数据。

FOR mocLocalCallRecords IN moc_local_call_records
      LOOP
        IF mocLocalCallRecords.N_CNT > 0 THEN
          INSERT INTO TRAFFIC_PREPROCESS_INB(TADIG, MOC_LOCAL_CALL_RECORDS)
          VALUES (mocLocalCallRecords.RECIPIENT, mocLocalCallRecords.N_CNT);
        END IF;
    END LOOP;

FOR mocLocalHomeRecords in moc_local_home_records
      LOOP
        IF mocLocalHomeRecords.N_CNT > 0 THEN
          INSERT INTO TRAFFIC_PREPROCESS_INB(moc_local_home_records)
          VALUES (mocLocalHomeRecords.N_CNT);
        end if;
end loop;

我只需要在一个插入命令中合并这些查询。给我一些建议，顺便说一下我是初学者

【问题讨论】：

这适用于哪个 RDBMS？请添加标签以指定您使用的是mysql、postgresql、sql-server、oracle 还是db2 - 或其他完全不同的东西。
ORACLE PL/SQL -------------------------- --------------------------
那么请在您的问题中添加 oracle 标签！

标签： sql oracle stored-procedures plsql

【解决方案1】：

你为什么要使用光标？您可以使用 1 个这样的插入命令轻松插入：

INSERT INTO TRAFFIC_PREPROCESS_INB(TADIG, MOC_LOCAL_CALL_RECORDS)
select RECIPIENT, N_CNT 
from (
SELECT RECIPIENT, COUNT(*) N_CNT
      FROM (SELECT RECIPIENT,
                   SERVICE_TYPE,
                   MPS_SWTCH_CD,
                   MPS_FTR_CD1
            FROM ABA_RM_INB_USAGE
            WHERE SERVICE_TYPE = 100
               OR SERVICE_TYPE = 0
              AND MPS_SWTCH_CD = 'T11'
              AND MPS_FTR_CD1 = 1033)
      GROUP BY RECIPIENT
      HAVING COUNT(*) > 0
union all
SELECT NULL as RECIPIENT, COUNT(*) N_CNT
FROM (SELECT RECIPIENT,
             SERVICE_TYPE,
             MPS_FTR_CD1
      FROM ABA_RM_INB_USAGE
      WHERE SERVICE_TYPE = 100
           OR SERVICE_TYPE = 0
          AND MPS_FTR_CD1 = 1031)
 GROUP BY RECIPIENT
 HAVING COUNT(*) > 0
  )X

希望对你有帮助

【讨论】：

【解决方案2】：

如果中间不进行任何转换，可以直接这样插入：

INSERT INTO TRAFFIC_PREPROCESS_INB(TADIG, MOC_LOCAL_CALL_RECORDS,MOC_LOCAL_HOME_RECORDS)
SELECT RECIPIENT, COUNT(*) N_CNT, NULL
      FROM (SELECT RECIPIENT,
                   SERVICE_TYPE,
                   MPS_SWTCH_CD,
                   MPS_FTR_CD1
            FROM ABA_RM_INB_USAGE
            WHERE SERVICE_TYPE = 100
               OR SERVICE_TYPE = 0
              AND MPS_SWTCH_CD = 'T11'
              AND MPS_FTR_CD1 = 1033)
      GROUP BY RECIPIENT
      HAVING COUNT(*) > 0;

UNION ALL 

SELECT NULL, NULL, COUNT(*) N_CNT
  FROM (SELECT RECIPIENT,
               SERVICE_TYPE,
               MPS_FTR_CD1
        FROM ABA_RM_INB_USAGE
        WHERE SERVICE_TYPE = 100
           OR SERVICE_TYPE = 0
          AND MPS_FTR_CD1 = 1031)
  GROUP BY RECIPIENT
  HAVING COUNT(*) > 0;

【讨论】：

以及如何插入下一个？
同理。插入 traffic_preprocess_inb 从（您的查询）中选择 n_cnt
这对你有帮助吗？？
其实没有:(我需要将过滤后的数据逐列插入到表中，这是我的问题。然后我可以直接将该表插入到另一个表中。
如果你需要向两个表中插入数据，你应该有两个插入查询。 count > 0 的条件由“HAVING”子句执行，因此希望更新后的答案能满足您的要求。

【解决方案3】：

您的两个查询非常相似，where 子句中的谓词差别不大。由于您按 RECIPIENT 分组并且想要一个 Count(*)，因此它们都可以合并到一个更简单的查询中，就像这样

SELECT RECIPIENT, COUNT(*) N_CNT       
FROM ABA_RM_INB_USAGE
WHERE SERVICE_TYPE IN (100, 0)    
  AND ((MPS_FTR_CD1 = 1033 AND MPS_SWTCH_CD = 'T11')      
        OR MPS_FTR_CD1 = 1031)  
GROUP BY RECIPIENT

此外，您希望从该 SELECT 中插入那些 COUNT(*) 大于零的记录到另一个表中。这可以通过不使用游标的单个 INSERT 语句来实现，因此具有更好的性能，就像这样

INSERT INTO TRAFFIC_PREPROCESS_INB
(TADIG, MOC_LOCAL_CALL_RECORDS)
SELECT RECIPIENT, COUNT(*) N_CNT       
FROM ABA_RM_INB_USAGE
WHERE SERVICE_TYPE IN (100, 0)    
  AND ((MPS_FTR_CD1 = 1033 AND MPS_SWTCH_CD = 'T11')      
        OR MPS_FTR_CD1 = 1031)  
GROUP BY RECIPIENT
HAVING N_CNT > 0

【讨论】：