PHP move information between SQL Tables - php

Question

I am trying to move information from Table A to Table B with the following code. in the same time I want to delete the row in table B once information is moved to table A
//Move from table A to table B
$sql = "insert into del_ussd_members SELECT * FROM members WHERE
member_id='$member_id'";
if (mysql_query($sql, $con)) {
$insertSuccessful = true;
} else {
echo $sql;
print_r($_POST);
echo "\n" . mysql_error($con); echo "mysql err no : " .
mysql_errno($con);
}
//Delete from members
$sql2 = "DELETE FROM members WHERE member_id='$member_id'";
if (mysql_query($sql1, $con)) {
$insertSuccessful = true;
} else {
echo $sql1;
echo "\n" . mysql_error($con);
echo "mysql err no : " . mysql_errno($con);
}
The move is happening no problem but the delete function gives me the following error
Query was emptymysql err no : 1065
Even if I run the string on its own I get the same error

Answer 1

Replace
if (mysql_query($sql1, $con)) { //because $sql1 doesn't exist as per your code.
with
if (mysql_query($sql2, $con)) {
You should first change mysql_* functions to mysqli or PDO. Because the whole mysql_* functions will be deprecated in the coming versions.

Answer 2

There is no $sql1 variable in your code so you can't use it. You probably wanted to use $sql2.
Also, think about moving to PDO or mysqli_*, because mysql_* is deprecated and will be removed from PHP.
Next thing is that your first query is incorrect. Split it to two separated queries.

Answer 3

you need to change $sql1 to $sql2 in second query.
//Delete from members
$sql2 = "DELETE FROM members WHERE member_id='$member_id'";
if (mysql_query($sql2, $con)) {

Answer 4

Copy Paste:
//Move from table A to table B
$sql = "insert into del_ussd_members SELECT * FROM members WHERE
member_id='$member_id'";
if (mysql_query($sql, $con)) {
$insertSuccessful = true;
} else {
echo $sql;
print_r($_POST);
echo "\n" . mysql_error($con); echo "mysql err no : " .
mysql_errno($con);
}
//Delete from members
$sql2 = "DELETE FROM members WHERE member_id='$member_id'";
if (mysql_query($sql2, $con)) {
$insertSuccessful = true;
} else {
echo $sql2;
echo "\n" . mysql_error($con);
echo "mysql err no : " . mysql_errno($con);
}