Oracle Data Integrator中的錯誤ORA-12154

Question

運行映射時出現錯誤。

我創建了一個“新數據服務器”

我可以通過單擊“測試連接”按鈕來成功測試連接。

但是，映射無法成功運行。 完整的錯誤消息如下：

ODI-1228: Task Merge rows-IKM Oracle Merge-Load USERS fails on the target connection DB-TARGET.
Caused By: java.sql.SQLException: ORA-12154: TNS:невозможно разрешить заданный идентификатор соединения

    at oracle.jdbc.driver.T4CTTIoer11.processError(T4CTTIoer11.java:495)
    at oracle.jdbc.driver.T4CTTIoer11.processError(T4CTTIoer11.java:447)
    at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:1055)
    at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:624)
    at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:253)
    at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:613)
    at oracle.jdbc.driver.T4CStatement.doOall8(T4CStatement.java:214)
    at oracle.jdbc.driver.T4CStatement.doOall8(T4CStatement.java:38)
    at oracle.jdbc.driver.T4CStatement.executeForRows(T4CStatement.java:891)
    at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1194)
    at oracle.jdbc.driver.OracleStatement.executeInternal(OracleStatement.java:1835)
    at oracle.jdbc.driver.OracleStatement.execute(OracleStatement.java:1790)
    at oracle.jdbc.driver.OracleStatementWrapper.execute(OracleStatementWrapper.java:301)
    at oracle.odi.runtime.agent.execution.sql.SQLCommand.execute(SQLCommand.java:205)
    at oracle.odi.runtime.agent.execution.sql.SQLExecutor.execute(SQLExecutor.java:142)
    at oracle.odi.runtime.agent.execution.sql.SQLExecutor.execute(SQLExecutor.java:28)
    at oracle.odi.runtime.agent.execution.TaskExecutionHandler.handleTask(TaskExecutionHandler.java:52)
    at oracle.odi.runtime.agent.execution.SessionTask.processTask(SessionTask.java:206)
    at oracle.odi.runtime.agent.execution.SessionTask.doExecuteTask(SessionTask.java:117)
    at oracle.odi.runtime.agent.execution.AbstractSessionTask.execute(AbstractSessionTask.java:886)
    at oracle.odi.runtime.agent.execution.SessionExecutor$SerialTrain.runTasks(SessionExecutor.java:2225)
    at oracle.odi.runtime.agent.execution.SessionExecutor.executeSession(SessionExecutor.java:610)
    at oracle.odi.runtime.agent.processor.TaskExecutorAgentRequestProcessor$1.doAction(TaskExecutorAgentRequestProcessor.java:718)
    at oracle.odi.runtime.agent.processor.TaskExecutorAgentRequestProcessor$1.doAction(TaskExecutorAgentRequestProcessor.java:611)
    at oracle.odi.core.persistence.dwgobject.DwgObjectTemplate.execute(DwgObjectTemplate.java:203)
    at oracle.odi.runtime.agent.processor.TaskExecutorAgentRequestProcessor.doProcessStartAgentTask(TaskExecutorAgentRequestProcessor.java:800)
    at oracle.odi.runtime.agent.processor.impl.StartSessRequestProcessor.access$1400(StartSessRequestProcessor.java:74)
    at oracle.odi.runtime.agent.processor.impl.StartSessRequestProcessor$StartSessTask.doExecute(StartSessRequestProcessor.java:702)
    at oracle.odi.runtime.agent.processor.task.AgentTask.execute(AgentTask.java:180)
    at oracle.odi.runtime.agent.support.DefaultAgentTaskExecutor$2.run(DefaultAgentTaskExecutor.java:108)
    at java.lang.Thread.run(Thread.java:748)
Caused by: Error : 12154, Position : 154, Sql = 
    MERGE 
  INTO TARGET.USERS USERS
  USING
  (
SELECT 
  USE.NAME AS NAME ,
  USE.PASSWD AS PASSWD ,
  USE.USER_ROLE AS USER_ROLE   
FROM 
  **SOURCE.USERS@"MySource" USE**  
  ) MERGE_SUBQUERY
  ON
  (
    USERS.NAME = MERGE_SUBQUERY.NAME 
   )
  WHEN NOT MATCHED THEN
    INSERT
    (
      NAME ,
      PASSWD ,
      USER_ROLE 
    )
    VALUES
    (
      MERGE_SUBQUERY.NAME ,
      MERGE_SUBQUERY.PASSWD ,
      MERGE_SUBQUERY.USER_ROLE 
    )
  WHEN MATCHED THEN
    UPDATE SET
      PASSWD = MERGE_SUBQUERY.PASSWD ,
      USER_ROLE = MERGE_SUBQUERY.USER_ROLE    , OriginalSql = 
    MERGE 
  INTO TARGET.USERS USERS
  USING
  (
SELECT 
  USE.NAME AS NAME ,
  USE.PASSWD AS PASSWD ,
  USE.USER_ROLE AS USER_ROLE   
FROM 
  SOURCE.USERS@"MySource" USE  
  ) MERGE_SUBQUERY
  ON
  (
    USERS.NAME = MERGE_SUBQUERY.NAME 
   )
  WHEN NOT MATCHED THEN
    INSERT
    (
      NAME ,
      PASSWD ,
      USER_ROLE 
    )
    VALUES
    (
      MERGE_SUBQUERY.NAME ,
      MERGE_SUBQUERY.PASSWD ,
      MERGE_SUBQUERY.USER_ROLE 
    )
  WHEN MATCHED THEN
    UPDATE SET
      PASSWD = MERGE_SUBQUERY.PASSWD ,
      USER_ROLE = MERGE_SUBQUERY.USER_ROLE    , Error Msg = ORA-12154: TNS:невозможно разрешить заданный идентификатор соединения

    at oracle.jdbc.driver.T4CTTIoer11.processError(T4CTTIoer11.java:499)
    ... 30 more

不要與錯誤ORA-12154的俄語描述相混淆。 這意味着TNS：無法解析指定的連接標識符。

tnsnames.ora文件存在。 我也可以使用SQL Developer進行連接

經過一些調查，在我看來，這條線

SOURCE.USERS@"MySource" USE

是罪魁禍首

但是在執行此腳本之前，ODI執行了另一個腳本並成功執行了該腳本。 以下是其內容：

create database link "MySource" connect to SOURCE identified by <@=odiRef.getInfo("SRC_PASS") @> using '***'

Answer 1

我在SQL Developer中運行了兩個查詢，並將<@=odiRef.getInfo("SRC_PASS") @>替換為實際值。

我可以重現該錯誤。

我在下面運行查詢，以確保已創建dblink：

select * from all_db_links;

然后，我遇到了一個討論，有人建議以這種方式創建dblink：

create database link "MySource" connect to SOURCE identified by *** using 
'(DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = oracle.****.***.**)
    )
)';

有效。 我可以在后續查詢中使用此鏈接。 但是我注意到，一種較短的方法是僅使用SID創建dblink：

create database link "MySource" connect to SOURCE identified by *** using oracle;

因此，我切換到ODI，並將所有數據服務器中使用的連接字符串從jdbc:oracle:thin:@<host>:<port>/<service name>更改為jdbc:oracle:thin:@<host>:<port>:<sid>格式jdbc:oracle:thin:@<host>:<port>:<sid>

這解決了問題。 我可以成功運行映射。

不知道為什么不能使用基於服務名稱創建的dblink。

甲骨文不禁止使用該文件

創建數據庫鏈接：

https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_5005.htm