mysql insert ignore. Need to get only all inserted rows - mysql

Question

Good day everyone! I have MySQL Database with tables on
CREATE TABLE `TableWithInnoDBEngine` (
`userID` int(11) NOT NULL, PRIMARY KEY (`userID`),
UNIQUE KEY `userID_UNIQUE` (`userID`) )
ENGINE=InnoDB DEFAULT CHARSET=utf8;
mysql> select * from TableWithInnoDBEngine;
+--------+
| userID |
+--------+
| 1 |
| 2 |
| 3 |
+--------+
I'm doing :
INSERT IGNORE INTO TableWithInnoDBEngine (UserID) VALUES (1),(2),(3),(4),(5);
2 row(s) affected Records: 5 Duplicates: 3 Warnings: 0
And want to get all affected rows?
SELECT LAST_INSERT_ID() returns only last value (5), but need to return
+--------+
| userID |
+--------+
| 4 |
| 5 |
+--------+
I'm using PHP 5.6.17 + MySQL 5.5.46-0+deb7u1
Thank you for your responses!

Answer 1

I would create a temporary table similar to the destination table, insert all the id-s there, and then you can make 2 selects, one to select the duplicates and one to insert the non-duplicates into table.
I don't understand the second part of your question: inserting all id-s from 1 to 35000, and getting the duplicates? It's equivalent to:
SELECT DISTINCT userId FROM table;
Update:
When you do:
$mysqli->query("INSERT IGNORE INTO TableWithInnoDBEngine (UserID) VALUES (1),(2),(3),(4),(5)");
$info = $mysqli->info();
You can get the information you want in string format like "Records: 3 Duplicates: 0 Warnings: 0" see: http://php.net/manual/en/mysqli.info.php

Answer 2

If you use INSERT ... ON DUPLICATE KEY UPDATE ... istead of INSERT IGNORE ... you can save all duplicate IDs into one string doing something like this:
SET #duplicates := '';
INSERT INTO TableWithInnoDBEngine (UserID) VALUES (1),(2),(3),(4),(5)
ON DUPLICATE KEY UPDATE
userID = userID + if(#duplicates := concat(#duplicates,',',userID),0,0);
SET #duplicates := SUBSTRING(#duplicates FROM 2);
SELECT #duplicates;
You can now parse the resulting string on the application side to filter the inserted data.

Answer 3

Seems that fast and cheap in memory usage solution is to insert new data into temporary table and compare it with original table:
CREATE TABLE `Original_TableWithInnoDBEngine` (
`userID` int(11) NOT NULL,
UNIQUE KEY `userID_UNIQUE` (`userID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
CREATE TABLE `tmp_TableWithInnoDBEngine` (
`userID` int(11) NOT NULL,
UNIQUE KEY `userID_UNIQUE` (`userID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
and then:
INSERT INTO Original_TableWithInnoDBEngine (userID) VALUES (1),(2),(3),(4),(5),(6);
select * from Original_TableWithInnoDBEngine;
+--------+
| userID |
+--------+
| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
| 6 |
+--------+
INSERT INTO tmp_TableWithInnoDBEngine (userID) VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
select * from tmp_TableWithInnoDBEngine;
+--------+
| userID |
+--------+
| 1 |
| 2 |
| 3 |
| 4 |
| 5 |
| 6 |
| 7 |
| 8 |
| 9 |
| 10 |
+--------+
and now i use this query to get values that is in tmp table but not in original:
SELECT tmp_TableWithInnoDBEngine.UserID FROM tmp_TableWithInnoDBEngine WHERE tmp_TableWithInnoDBEngine.UserID NOT IN(SELECT UserID FROM original_TableWithInnoDBEngine)";
+--------+
| userID |
+--------+
| 7 |
| 8 |
| 9 |
| 10 |
+--------+