Question

在此SQL select命令中找不到错误。数据库是mySql。 select命令与MS ACCESS数据库完美配合，但是：

<asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:recipesConnectionString %>" 
        ProviderName="<%$ ConnectionStrings:recipesConnectionString.ProviderName %>" 
        SelectCommand="SELECT IDrecipe, title FROM recipe WHERE (title LIKE '%' + @IDTextBox1 + '%')">

    </asp:SqlDataSource>

以上会产生以下错误：

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 '+ 'sauce' + '%')' at line 1

Answer 1

尝试此操作时不需要额外的引号和+。

 SelectCommand="SELECT IDrecipe, title 
                FROM recipe 
                WHERE title LIKE '%' @IDTextBox1 '%' ">

Answer 2

你不能在mysql中使用+运算符来阻塞字符串;使用CONCAT（）：

SelectCommand="SELECT IDrecipe, title FROM recipe WHERE (title LIKE CONCAT('%', @IDTextBox1, '%') )">

传递参数时SQL语句出错

2 个答案: