c# - MySQL 服务器错误 - 您的 SQL 语法有错误

Question

我正在尝试更新数据库表并收到错误

"MySql.Data.MySqlClient.MySqlException: 'You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'group='superadmin' WHERE identifier='steam:steam:1100001098b5888'' at line 1'"

        // Creates query to run
public void UpdateInfo(String jobTitle, int jobGrade, String adminLevel, String identifier) {

    // Opens the database connection if it's not already open
    if (!(databaseConnected)) {
        openConnection();
    }

    // Creates query to run
    String query = "UPDATE " + table + " SET job=@jobTitle, job_grade=@jobGrade, group=@adminLevel WHERE identifier=@identifier";

    // Makes a new command
    MySqlCommand cmd = new MySqlCommand(query, connection);

    // Replaces the @ placeholders with actual variables
    cmd.Parameters.AddWithValue("@jobTitle", jobTitle);
    cmd.Parameters.AddWithValue("@jobGrade", jobGrade);
    cmd.Parameters.AddWithValue("@adminLevel", adminLevel);
    cmd.Parameters.AddWithValue("@identifier", identifier);

    // Executes it and if it's...
    if (cmd.ExecuteNonQuery() > 0) {
        // Successful
        MessageBox.Show("Successfully updated information");

        closeConnection();
        return;
    } else {
        // Not successful
        MessageBox.Show("Error with updating information!");

        // Closes the connection again to prevent leaks
        closeConnection();
        return;
    }

}

Answer 1

我在 https://sqltest.net/ 上尝试了您的查询当我尝试创建表格时，注意到它突出显示了“组”。我想知道问题是否可能是使用“group”作为列名，因为它是保留字。

是否可以尝试将列重命名为 group_level 或在“group”或“group”周围添加反勾号，看看是否有效？

举个例子

'group'=@grouplevel

我找到了this thread和 this thread on renaming the column他们对“group”作为列名有疑问。添加反引号似乎可以解决这两个问题。

编辑:根据OP，双引号(“)解决了问题而不是单引号。编辑后的答案包括在内。