Why Does My MySQL Code Throw 'Cannot issue data manipulation statements with executeQuery()'?

Error Handling: "Cannot issue data manipulation statements with executeQuery()"

When attempting to execute a data manipulation statement in MySQL, an error may occur if the wrong method is used. The error message "cannot issue data manipulation statements with executeQuery()" indicates that the executeQuery() method is not suitable for modifying data.

Understanding executeQuery() vs. executeUpdate()

The executeQuery() method is designed to retrieve data from a database and return a result set. It is commonly used for queries that select data or retrieve information.

In contrast, the executeUpdate() method is meant for data manipulation operations that alter the contents of a database, such as inserting, updating, or deleting rows.

Resolving the Error

To resolve the error, you should use the correct method for the task you want to perform. To manipulate data in MySQL, you should use the executeUpdate() method instead of executeQuery().

For example, if you have two queries to execute, one to insert data and the other to update data, you would use the following code:

executeUpdate(query1);
executeUpdate(query2);

By using executeUpdate(), you ensure that data modification statements are executed and any changes are made to the database.

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