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Resolving SQLCODE=-104 Error in DB2

Learn how to fix the `SQLCODE=-104` error when using DBeaver with DB2 by properly qualifying your table names and understanding Db2 commands. --- This video is based on the question https://stackoverflow.com/q/70290732/ asked by the user 'Orly Orly' ( https://stackoverflow.com/u/16424414/ ) and on the answer https://stackoverflow.com/a/70290792/ provided by the user 'mao' ( https://stackoverflow.com/u/8290634/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: SQLCODE=-104, SQLSTATE=42601, SQLERRMC=table;reorg ;JOIN joined_table Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Resolving SQLCODE=-104 Error in DB2: A Step-by-Step Guide Working with SQL databases can sometimes lead to unexpected errors, especially when running queries through applications like DBeaver. One common error that you might encounter while working with DB2 is the SQLCODE=-104 error. This guide will dive into understanding this error and provide you with the steps to resolve it effectively. What Does the SQLCODE=-104 Error Mean? The error message you received indicates that there is a syntax issue in your SQL command. Specifically, it states: [[See Video to Reveal this Text or Code Snippet]] Breakdown of the Error SQLCODE=-104: This SQL error code signifies an illegal beginning of a statement. SQLSTATE=42601: This correlates to a syntax error. SQLERRMC: This shows the trouble area in your command: table;reorg;JOIN <joined_table>. In your case, it seems that you are trying to run a REORG TABLE command directly as an SQL statement, which is not the correct method in this instance. How Can I Fix the Error? To properly execute the REORG TABLE command in DB2 using DBeaver, follow these structured guidelines: Step 1: Understand Table Qualifiers When you’re accessing tables in DB2, it's essential to qualify the table name properly. If you do not explicitly provide the schema name (such as db2inst1), DB2 defaults to using the user ID you used to connect to the database. This might cause confusion, especially if the schema does not match the user ID. Step 2: Use the Correct Command Format For commands like REORG TABLE, DB2 expects them to be run in a specific manner as they differ from standard SQL statements. Here’s how to do it correctly: Instead of running your command directly, you should use the following command to call the appropriate stored procedure: [[See Video to Reveal this Text or Code Snippet]] Step 3: Alternative Ways to Execute Commands If you're more comfortable running commands outside of DBeaver, you can also execute REORG TABLE from the command line. This requires using either db2cmd.exe on Windows or using a terminal on Linux/Unix. Connect to the appropriate database. Execute the command like this: [[See Video to Reveal this Text or Code Snippet]] Conclusion When dealing with SQL errors, understanding the context and syntax of commands is crucial. The SQLCODE=-104 error you encountered is a common hiccup when working with DB2 through JDBC applications like DBeaver. By qualifying table names properly and using the CALL command to execute REORG TABLE, you can overcome this issue and manage your database efficiently. Should you encounter any other errors or have further questions, don’t hesitate to reach out or consult the official DB2 documentation for more information. Happy coding!