求解答 C#程序调试时总有这个错误
string text=textBox1.Text;
if (comboBox1.Text == "读者")
{
string sql = "SELECT RNAME FROM reader WHERE RNO =";
sql += text + "AND PASSWORD = '" + textBox2.Text.Trim()+"'";
调试时老是出现'PASSWORD‘附近有语法错误，不知道错误出在哪

[解决办法]