Why Am I Getting a \'Select Command Denied\' Error in MySQL, and How Can I Fix It?

Troubleshooting "select command denied" Errors in MySQL

When attempting to interact with MySQL tables via a web service, unexpected errors may arise, such as the "select command denied" error. This article aims to provide insights into the potential causes behind this issue and guide users towards a resolution.

As mentioned in the user's query, the error occurs while executing a MySQL statement that attempts to read data from a table. The error message indicates that the user lacks the necessary permissions to execute the operation. However, upon further investigation, it was discovered that the root cause of the error lay elsewhere.

In the provided code snippet, the error is encountered at the line attempting to execute a query in the "tbl_Position" table. The user reports having debugged the code and identified the source of the issue as the line: "MySqlDataReader result1 = command1.ExecuteReader();".

Upon closer examination of the code, it becomes apparent that the SQL statement in the command1 is attempting to read data from the "tbl_Position" table located in the "json" database. However, the code is incorrectly using the "jsontest" database instead.

Adjusting the SQL statement to point to the correct database should resolve the issue:

String newSQL = "Select `Strike`,`LongShort`,`Current`,`TPLevel`,`SLLevel` from `json`.`tbl_Position` where `TradeID` = '" + i + "'";

By correcting the SQL statement to target the intended database and table, the user will no longer encounter the "select command denied" error. This highlights the importance of verifying the correctness of SQL statements and ensuring that they accurately reflect the desired data retrieval.

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