Question

我用它来处理PHP。

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 '' at line 1

编辑1：

$SQLQUERY = sprintf("SELECT pd_serial FROM product_details WHERE pd_model_type=%s AND pd_model_name=%s AND pd_model_version=%s AND pd_product_group=%s LIMIT 1",
GetSQLValueString($modeltype, "text"),
GetSQLValueString($modelname, "text"),
GetSQLValueString($modelversion, "text"),
GetSQLValueString($modelgroup, "text"));
$QUERYEXEC =  mysql_query($SQLQUERY, $dacreint) or die("OOPS! Please try again.");

while ($QUERYFETCH = mysql_fetch_array($QUERYEXEC))
{
    $pdserial = $QUERYFETCH['pd_serial'];
}

编辑2：

while ($QUERYFETCH = mysql_fetch_array($QUERYEXEC))
{
    $pdserial = $QUERYFETCH['pd_serial'];
}
$SQLQUERY = sprintf("SELECT product_serial_no FROM products WHERE product_serial_no = '$product_serial_no'");
$TCcount_QE = mysql_query($SQLQUERY, $dacreint) or die(mysql_error());

Answer 1

您应该将字符串放在单引号内。并确保使用mysql_real_escape_string()或类似函数

转义了这些字符串值

SELECT pd_serial FROM product_details WHERE (pd_model_type='%s' AND pd_model_name='%s') AND (pd_model_version='%s' AND pd_model_group='%s') LIMIT 1

更新1

            while ($QUERYFETCH = mysql_fetch_array($QUERYEXEC))
            {
                $pdserial = $QUERYFETCH['pd_serial'];
            }
    // let's comment out the following line
        //    $SQLQUERY = sprintf("SELECT product_serial_no FROM products WHERE product_serial_no = '$product_serial_no'");
// and modifying it as:
            $SQLQUERY = sprintf("SELECT product_serial_no FROM products WHERE product_serial_no = %s", GetSQLValueString($product_serial_no, "text"));
            $TCcount_QE = mysql_query($SQLQUERY, $dacreint) or die(mysql_error());

Answer 2

您能否添加“呈现”查询？您的参数是否应在引号中设置为“％s”？

顺便说一下：你不必在完全“AND”链接的WHERE语句中设置括号。

Answer 3

这是正确的查询

SELECT pd_serial FROM product_details WHERE pd_model_type=%s AND pd_model_name=%s AND pd_model_version=%s AND pd_model_group=%s LIMIT 1

被修改

SELECT pd_serial FROM product_details WHERE pd_model_type like '%s' AND pd_model_name like '%s' AND pd_model_version like '%s' AND pd_model_group like '%s' LIMIT 1

对不起，我忘了在括号中附上类似的条件，因为我们在这里使用外卡而我失踪了

如何使用两个以上的“WHERE”子句？ MYSQL错误

3 个答案: