Question

我目前正在制作一个ASP.NET网站。在Global.asax中，我有一些代码用于初始化某些表（如果它们不存在）。 init blog_post和booked_dates部分代码正确执行并创建表，但init image_info没有。它们非常相似，我找不到MySQL语法的错误。

错误讯息：
您的SQL语法有错误;查看与您的MySQL服务器版本对应的手册，以便在第1行的''description'TEXT，PRIMARY KEY（id））'附近使用正确的语法

        //init blog_post
        using (MySqlCommand cmd = new MySqlCommand("CREATE TABLE IF NOT EXISTS `blog_post` (" +
            "`id` INT AUTO_INCREMENT," +
            "`header` VARCHAR(255)," +
            "`bbcode` TEXT," +
            "`author` VARCHAR(255)," +
            "`time_posted` DATETIME, " +
            "PRIMARY KEY(id));", con))
        {
            cmd.ExecuteNonQuery();
            cmd.Dispose();
        }

        //init booked_dates
        using (MySqlCommand cmd = new MySqlCommand("CREATE TABLE IF NOT EXISTS `booked_dates` (" +
            "`id` INT AUTO_INCREMENT," +
            "`author` VARCHAR(255)," +
            "`start_time` DATETIME," +
            "`end_time` DATETIME," +
            "`time_booked` DATETIME, " +
            "PRIMARY KEY(id));", con))
        {
            cmd.ExecuteNonQuery();
            cmd.Dispose();
        }

        //init image_info
        using (MySqlCommand cmd = new MySqlCommand("CREATE TABLE IF NOT EXISTS `image_info` (" +
            "`id` INT AUTO_INCREMENT," +
            "`author` VARCHAR(255)," +
            "`file_name` TEXT," +
            "`title` TEXT," +
            "`album` TEXT, " +
            "'description' TEXT, " +
            "PRIMARY KEY(id));", con))
        {
            cmd.ExecuteNonQuery();
            cmd.Dispose();
        }

事先感谢您的帮助！

Answer 1

您没有在创建表代码中使用backticks。

"'description' TEXT, "

应该是

"`description` TEXT, "

Answer 2

您在说明'周围使用了不同的引号，它应该是另一个

`description`

或者由于description不是保留字，因此如果需要，可以省略引号。您的查询应该是：

using (MySqlCommand cmd = new MySqlCommand("CREATE TABLE IF NOT EXISTS `image_info` (" +
            "`id` INT AUTO_INCREMENT," +
            "`author` VARCHAR(255)," +
            "`file_name` TEXT," +
            "`title` TEXT," +
            "`album` TEXT, " +
            "`description` TEXT, " +
            "PRIMARY KEY(id));", con))

Answer 3

应该使用

backticks代替single quote

"'description' TEXT, " +

应该是

"`description` TEXT, " +

Answer 4

"'description' TEXT, " +还有其他引用！

Answer 5

无论如何都不需要引用/反击它们。

MySQL - 当类似的CREATE TABLE没有时，CREATE TABLE抛出错误

5 个答案: