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Resolving ORA-00904 in Java MyBatis: Calling Custom Oracle Functions
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Learn how to effectively call custom Oracle functions in MyBatis without encountering the `ORA-00904` error, ensuring smooth operations in your Java applications.
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Visit these links for original content and any more details, such as alternate solutions, comments, revision history etc. For example, the original title of the Question was: Java MyBatis Call a custom function in mapper to get secure information receive Error Oracle ORA-00904
If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
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Troubleshooting Oracle ORA-00904 Error in Java MyBatis
When working with Java MyBatis and custom functions in an Oracle database, developers may sometimes encounter frustrating error messages. One such error is the ORA-00904: "SECUREUSER"."COLLECTION"."GETEXAMPLEID": invalid identifier. This error can slow down progress and lead to unnecessary debugging sessions.
In this guide, we will walk through the steps to identify and resolve this particular issue when trying to call a custom Oracle function in a MyBatis mapper.
Understanding the Situation
The Code Snippet
Here is the relevant code snippet where the issue arises:
[[See Video to Reveal this Text or Code Snippet]]
Error Explanation
The error you're facing, ORA-00904: invalid identifier, indicates that Oracle cannot find the specified function. After running the function directly in PL/SQL and confirming it works, we should look into potential pitfalls in how MyBatis interacts with the Oracle database.
Possible Reasons
Some common reasons for this error might include:
Name Changes: The function name or its schema may have been altered in the database.
Incorrect Object Names: Sometimes, quoting or case sensitivity can lead to confusion.
Misconfiguration in MyBatis: There's always a chance that the MyBatis mapper is misconfigured.
Solution Steps
Verify Database Object Names:
Test Directly in PL/SQL:
As you've done previously, confirm that the function works without issues through direct execution in PL/SQL environments.
Update MyBatis Mapper:
Once you verify the function's existence and correct naming, ensure your MyBatis mapper references the correct function name. If there was a name change, update it in the mapper file.
Remove Unnecessary Quotes:
As mentioned in your original question, avoid placing extra quotes around the names in the SQL statement, as this could lead to added complexity and unintended errors.
Debugging Using Logging:
Enable SQL logging in MyBatis to see the final executed SQL statements. This can provide insights on what MyBatis is actually trying to execute against the Oracle database.
Conclusion
In this specific case where you were experiencing the ORA-00904 error, it turned out that the function name had changed in the database, resulting in the invalid identifier error message.
Once you confirm the correct names and ensure your MyBatis mapper is accurately defined, it should resolve the issue. Always remember to keep track of schema changes in your database to avoid similar errors in the future.
By following these steps, you can effectively troubleshoot and resolve issues when trying to call custom functions in MyBatis, leading to smoother and more efficient development.
Keep experimenting, and you’ll soon find that debugging can be a rewarding part of the development process!
---
Visit these links for original content and any more details, such as alternate solutions, comments, revision history etc. For example, the original title of the Question was: Java MyBatis Call a custom function in mapper to get secure information receive Error Oracle ORA-00904
If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Troubleshooting Oracle ORA-00904 Error in Java MyBatis
When working with Java MyBatis and custom functions in an Oracle database, developers may sometimes encounter frustrating error messages. One such error is the ORA-00904: "SECUREUSER"."COLLECTION"."GETEXAMPLEID": invalid identifier. This error can slow down progress and lead to unnecessary debugging sessions.
In this guide, we will walk through the steps to identify and resolve this particular issue when trying to call a custom Oracle function in a MyBatis mapper.
Understanding the Situation
The Code Snippet
Here is the relevant code snippet where the issue arises:
[[See Video to Reveal this Text or Code Snippet]]
Error Explanation
The error you're facing, ORA-00904: invalid identifier, indicates that Oracle cannot find the specified function. After running the function directly in PL/SQL and confirming it works, we should look into potential pitfalls in how MyBatis interacts with the Oracle database.
Possible Reasons
Some common reasons for this error might include:
Name Changes: The function name or its schema may have been altered in the database.
Incorrect Object Names: Sometimes, quoting or case sensitivity can lead to confusion.
Misconfiguration in MyBatis: There's always a chance that the MyBatis mapper is misconfigured.
Solution Steps
Verify Database Object Names:
Test Directly in PL/SQL:
As you've done previously, confirm that the function works without issues through direct execution in PL/SQL environments.
Update MyBatis Mapper:
Once you verify the function's existence and correct naming, ensure your MyBatis mapper references the correct function name. If there was a name change, update it in the mapper file.
Remove Unnecessary Quotes:
As mentioned in your original question, avoid placing extra quotes around the names in the SQL statement, as this could lead to added complexity and unintended errors.
Debugging Using Logging:
Enable SQL logging in MyBatis to see the final executed SQL statements. This can provide insights on what MyBatis is actually trying to execute against the Oracle database.
Conclusion
In this specific case where you were experiencing the ORA-00904 error, it turned out that the function name had changed in the database, resulting in the invalid identifier error message.
Once you confirm the correct names and ensure your MyBatis mapper is accurately defined, it should resolve the issue. Always remember to keep track of schema changes in your database to avoid similar errors in the future.
By following these steps, you can effectively troubleshoot and resolve issues when trying to call custom functions in MyBatis, leading to smoother and more efficient development.
Keep experimenting, and you’ll soon find that debugging can be a rewarding part of the development process!