Similarly, I could check to see if $sql->error is not empty, except, again, that could be anything as well -- a syntax error, or a malformatted value, or whatever. title+author+version+date of purchase as the UI. PHP Code:
can return strange string codes // Exception expects an integer error code. It'd be cool if PHP's MySQLi class included these constants on it somewhere so I wasn't using the literal error code. –M Miller Aug 10 '14 at 0:48 Not Taylor Ren UUID should not be encouraged. Mysql Duplicate Entry For Key For error checking, use error codes, not error messages.
Add the parent row first. Mysql Unique Constraint Error Code If you are using PHP please use the [PHP] and [/PHP] forum tags for highlighting... ID is the primary key. http://stackoverflow.com/questions/20727269/database-handling-of-unique-constraint-violation Why is this file name truncated in Nautilus?
Error: HY0000 SQLSTATE: ER_INDEX_CORRUPT9 (ER_INDEX_CORRUPT8) Message: Cannot delete or update a parent row: a foreign key constraint fails ER_INDEX_CORRUPT7 reports this error when you try to delete a parent row that Mysql Insert Ignore Statements which support the IGNORE clause are: INSERT [ IGNORE ] UPDATE [ IGNORE ] DELETE [ IGNORE ] LOAD DATA [ IGNORE ] LOAD XML [ IGNORE ] CREATE TABLE… I have a corresponding USER table in which the First Name and the Mobile number form a composite unique key. Why can't I create a Permissions Level?
Add in the question the exact code you used. –ypercubeᵀᴹ Jul 8 '15 at 8:04 @ypercube yes it was a typo. http://dba.stackexchange.com/questions/106294/add-unique-index-fails-with-duplicate-entry-error-but-no-duplicates-found mysql> INSERT IGNORE INTO person_tbl (last_name, first_name) -> VALUES( 'Jay', 'Thomas'); Query OK, 1 row affected (0.00 sec) mysql> INSERT IGNORE INTO person_tbl (last_name, first_name) -> VALUES( 'Jay', 'Thomas'); Query OK, Mysql Unique Constraint Violation Error Code Why is bench pressing your bodyweight harder than doing a pushup? Insert Ignore Duplicate Entry Mysql I thought of a couple things, like checking if insert_id is set -- which it shouldn't be if the query generated an error.
The code can vary from DB to DB also. mysql>CREATE TABLE t(a INT) ENGINE = InnoDB; Query OK, 0 rows affected (0.44 sec) mysql> INSERT INTO t VALUES(1),(3),(1); Query OK, 3 rows affected (0.04 sec) mysql>ALTER TABLE t ADD CONSTRAINT Is a normed space which is homeomorphic to a Banach space complete? Word that includes "food, alcoholic drinks, and non-alcoholic drinks"? Mysqli Error Number
Browse other questions tagged mysql database or ask your own question. More: database, mysql Meet the author Craig Buckler Craig is a freelance UK web consultant who built his first page for IE2.0 in 1995. If two rows violate a UNIQUE constraint, we will get 2 warnings. We do not allow constraints to be broken inside the database. asked 2 years ago viewed 2036 times active 5 months ago Linked 3 How to get MySQL error parameters?
But this naturaly has a security flaw, Mysql remembers about results even after deletion(unless you optimise the table): PHP Code:
mysql_query("OPTIMIZEtblUsers"Hence, the unique constraint and handling the returned error. –Olie Feb 18 at 18:55 Besides, doing a SELECT first means extra workload for the servers. –Pang May 25 at
Using US "chip & signature" Credit Cards abroad in "chip & PIN" countries Is there a directory equivalent of /dev/null in Linux? If it's not 1586, check what it actually is by echoing the error code after your query. Obviously I'm not going to print out the actual MySQL error for the end user. Mysqli_errno I may bought another same book but with a different version or decoration.
ElDerecho Unique indexes are particularly handy in conjunction with MySQL's ON DUPLICATE KEY, allowing you to insert a row, or update an existing row with one statement. Contact Us Web Developer Forum Top Powered by vBulletin Version 4.2.2 Copyright © 2016 vBulletin Solutions, Inc. Approach 1: However the bug with the wrong duplicate entry message still there even after the database were dropped and recreated, but this is an evil I can/must live with. Check $mysqli->errno and $mysqli->error; } $schemaName = // Name of the schema (string).
Add a HAVING clause that eliminates unique values by requiring group counts to be greater than one. Reply Abhishek Ranjan says: October 14, 2016 at 9:22 am Hi Kazys, The reimplemtation of IGNORE clause tried not to change any existing behavior. If you have an additional step you want to do afterwards, which is specific to that, you want a specific errorhandling. –inetphantom May 8 '15 at 9:53 4 Doing the First I insert a row where title = "something".
Server error information comes from the following source files. INSERT IGNORE keeps the first of a set of duplicated records and discards the rest. For example, if the error occurs for a large ER_ERROR_IN_UNKNOWN_TRIGGER_BODY6, perform several smaller ER_ERROR_IN_UNKNOWN_TRIGGER_BODY5 operations. share|improve this answer answered Dec 9 '11 at 18:39 Julien 540931 1 Well, if you're providing products to a website then a product name should probably be unique, but you
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