Getting count of insert/update rows from ON DUPLICATE KEY UPDATE - mysql

Question

I have a statement that tries to insert a record and if it already exists, it simply updates the record.
INSERT INTO temptable (col1,col2,col3)
VALUES (1,2,3)
ON DUPLICATE KEY UPDATE col1=VALUES(col1), col2=VALUES(col2), col3=VALUES(col3);
The full statement has multiple inserts and I'm looking to count number of INSERTs against the UPDATEs. Can I do this with MySQL variables, I've yet to find a way to do this after searching.

Answer 1

From Mysql Docs
In the case of "INSERT ... ON DUPLICATE KEY UPDATE" queries, the return value will be 1 if an insert was performed, or 2 for an update of an existing row.
Use mysql_affected_rows() after your query, if INSERT was performed it will give you 1 and if UPDATE was performed it will give you 2.

Answer 2

I've accomplished what you're describing using a while loop so that each iteration creates a MySQL statement that affects one row. Within the loop, I run the mysql_affected_rows() and then increment a counter depending upon whether the value returned was a 0 or a 1. At the end of the loop, I echo both variables for viewing.
The complete wording from MySQL Docs regarding the mysql_affected_rows function is (notice there are 3 possible values returned - 0, 1, or 2):
For INSERT ... ON DUPLICATE KEY UPDATE statements, the affected-rows
value per row is 1 if the row is inserted as a new row, 2 if an
existing row is updated, and 0 if an existing row is set to its
current values. If you specify the CLIENT_FOUND_ROWS flag, the
affected-rows value is 1 (not 0) if an existing row is set to its
current values.
(Sidenote - I set $countUpdate and $countInsert and $countUpdateNoChange to 0 prior to the while loop):
Here's the code that I developed that works great for me:
while (conditions...) {
$sql = "INSERT INTO test_table (control_number, name) VALUES ('123', 'Bob')
ON DUPLICATE KEY UPDATE name = 'Bob'";
mysql_query($sql) OR die('Error: '. mysql_error());
$recordModType = mysql_affected_rows();
if ($recordModType == 0) {
$countUpdateNoChange++;
}elseif($recordModType == 1){
$countInsert++;
}elseif($recordModType == 2){
$countUpdate++;
};
};
echo $countInsert." rows inserted<br>";
echo $countUpdateNoChange." rows updated but no data affected<br>";
echo $countUpdate." rows updated with new data<br><br>";
Hopefully, I haven't made any typos as I've recreated it to share while removing my confidential data.
Hope this helps someone. Good luck coding!

Answer 3

I know this is a bit old, but I was doing a bulk insert in PHP and needed to know exactly how many rows were inserted and updated (separately).
So I used this:
$dataCount = count($arrData); // number of rows in the statement
$affected = mysql_affected_rows(); // mysqli_*, PDO's rowCount() or anything
$updated = $affected - $dataCount;
$inserted = 2 * $dataCount - $affected;
Simple trace table:
-------------------------------
| data | affected | ins | upd |
-------------------------------
| 1 | 1 | 1 | 0 |
-------------------------------
| 2 | 2 | 2 | 0 |
| 2 | 3 | 1 | 1 |
| 2 | 4 | 0 | 2 |
-------------------------------
| 3 | 3 | 3 | 0 |
| 3 | 4 | 2 | 1 |
| 3 | 5 | 1 | 2 |
| 3 | 6 | 0 | 3 |
-------------------------------
| 4 | 4 | 4 | 0 |
| 4 | 5 | 3 | 1 |
| 4 | 6 | 2 | 2 |
| 4 | 7 | 1 | 3 |
| 4 | 8 | 0 | 4 |
-------------------------------
| 5 | 5 | 5 | 0 |
| 5 | 6 | 4 | 1 |
| 5 | 7 | 3 | 2 |
| 5 | 8 | 2 | 3 |
| 5 | 9 | 1 | 4 |
| 5 | 10 | 0 | 5 |
-------------------------------

Answer 4

if you want to get the number of records that have been inserted and updated separetly, you are to issue each statement separetly.