Isam error duplicate value for a record with unique key vs primary

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Isam error duplicate value for a record with unique key vs primary

DAL: inconsistent behavior with constraint violation errors. Hans Murx. Reply to author. Report message as abuse. Show original message. Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message.

regret, that can key a primary duplicate isam value for record vs unique error with have removed this message Actually. You will

Join Stack Overflow to learn, share knowledge, and build your career. Find centralized, trusted content and collaborate around the technologies you use most. Connect and share knowledge within a single location that is structured and easy to search. When inserting a record into an informix db table, if I specify a value for one of the columns, no matter what the value, it will always throw the below error this little tidbit of info is golden and took me a while to figure out. The column is a char 4. There is no unique key index on the field that I can tell using squirrel.

You have a unique index (which is de facto the primary key, even though it is not is being inserted, and you can only have one row in the table with NULL in that column. Informix does not support 'UNIQUE UNLESS NULL'.

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Or, if the largest existing integer key is in use then an unused key value is chosen at random. Note that the integer key is one greater than the largest key that was in the table just prior to the insert. The new key will be unique over all keys currently in the table, but it might overlap with keys that have been previously deleted from the table. Then the key chosen will be one more than the largest key that has ever existed in that table. This is a feature, not a bug. SQLite uses dynamic typing. It does not enforce data type constraints.

Informix Error Messages and Error Codes From Error to new primary key) contains a duplicate value of some row that already exists. Why doesn't SQLite allow me.

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Closed as program error. in logging mode - Primary key constraint defined on the unique index column - Alter USERS AFFECTED: * * Constraint defined on the unique index column and later Problem Fixed In IBM Informix Server

DAL: inconsistent behavior with constraint violation errors

Oninit provides unrivalled technical expertise to the global Informix database -‚Äč Could not insert new row - duplicate value in a UNIQUE INDEX. column. The row that is being inserted (or being updated to have a new primary key) Another cause of this error might be a locking conflict if the table lock mode is page.

But first, a quick recap on what primary keys and unique constraints Being able to locate one specific row in a table is a fundamental feature of SQL And raises an error if anyone tries to insert a duplicate name: This avoids problems with having to cascade updates of key values from parent to children.

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A primary key is used to uniquely identify each record in the table. Columns with primary or unique keys cannot have duplicate values. The error clearly says that this statement violates the primary key constraint and that.

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Why doesn't SQLite allow me to use '0' and '' as the primary key on two What is an SQLITE_SCHEMA error, and why am I getting one? It causes every row of the table to be returned, not just the rows where column1 has the value The SQL standard requires that a UNIQUE constraint be enforced even if one or.

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He's worked for 15 years as a database consultant for IT companies like Informix and IBM. They provide a unique ID for every row in a database table. ERROR: duplicated key violation for primary key citizen_pkey can be sure you will not have duplicates and NULL values in the primary key column.

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  • Knox searshc. Every row must have a unique primary key. Let me explain more Note that 10 indexes on a table is a large number; I'd need some convincing that more than about 3 of them pull their weight, unless they are indexes on foreign key columns. During testing, the SQLite library is compiled with special instrumentation that allows the test scripts to simulate a wide variety of failures in order to verify that SQLite recovers correctly. Does the table havea trigger on it? You can save existing data to a temporary table, drop the old table, create the new table, then copy the data back in from the temporary table.