We then developed a method to measure compound muscle action potential (CMAP) in these rat models of facial nerve regeneration, for which no electrophysiological evaluation method for regenerated facial nerves had been established. ![]() Toward establishing new surgical treatments for facial nerve palsy, we have developed various experimental systems for facial nerve regeneration using rat models of facial nerve defects, including facial nerve regeneration in rats using a novel nerve conduit made of polylactic acid nonwoven fabric, facial nerve regeneration in rats using a basic fibroblast growth factor drug delivery system, facial nerve regeneration using dedifferentiated fat cells, facial nerve regeneration using adipose-derived stem cells (ADSCs) that were induced in vitro to differentiate into Schwann cell lineages, facial nerve reconstruction in rats using an artificial nerve conduit containing dental pulp cells extracted from incisor teeth, and facial nerve regeneration using an artificial nerve conduit made of a silicone tube containing a non-cultured stromal vascular fraction as the source of ADSCs. When the Current Value is less than Max Value, your sequence is out-of-sync. Validate, that the sequence is out-of-sync SELECT CURRVAL(PG_GET_SERIAL_SEQUENCE('"Foo"', 'Foo_id')) AS "Current Value", MAX("Foo_id") AS "Max Value" FROM "Foo" So, the table name must be in double quotes, surrounded by single quotes. ( Let's assume for all examples, that Foo is the table's name and Foo_id the related column.)Ĭommand to get the sequence name: SELECT PG_GET_SERIAL_SEQUENCE('"Foo"', 'Foo_id') In an e-mail from 2004 ( link) I got the right hint. In my case the tables were created by an ORM middleware (like Hibernate or Entity Framework Core etc.) and their names all started with a capital letter. Most examples use lower case table names. For Postgres, the name of the sequence can be determined with the command PG_GET_SERIAL_SEQUENCE. For this purpose the name of the sequence is needed. SolutionĪs mentioned in the answer from the sequence must be synchronized manually. After that the sequence was out of sync and no more records could be inserted via the app. Now a new entry had to be inserted manually via SQL. My case was as follows: There was a table that was filled with data using an app. However, I had to invest a lot of time in the details, which is why I am now writing a new answer in order to save this time for others. I also encountered this problem and the solution proposed by was basically the right solution. Than any existing primary key in the sequence. That will set the sequence to the next available value that's higher Back up your PG database (just in case), then run this command: SELECT setval('the_primary_key_sequence', (SELECT MAX(the_primary_key) FROM the_table)+1) If the first value is higher than the second value, your sequence is SELECT nextval('the_primary_key_sequence') ![]() ![]() Your values are out of sync, run these two commands: SELECT MAX(the_primary_key) FROM the_table Key index after restoring from a dump file. Call it a "bug byĭesign", but it seems that you have to manually reset the a primary Import process (or something along those lines). Working with has somehow become out of sync, likely because of a mass That likely means that the primary key sequence in the table you're If you get this message when trying to insert data into a PostgreSQLĭatabase: ERROR: duplicate key violates unique constraint This article explains that your sequence might be out of sync and that you have to manually bring it back in sync.Īn excerpt from the article in case the URL changes: Will if be enough or is there some other thing that should be done? If i add: ALTER TABLE comments ADD CONSTRAINT id_id_key UNIQUE(id) Can you help me to find the answer that can be used in the future for all tables that will be created? Let's say we have something easy like this: CREATE TABLE commentsĪLTER TABLE ments OWNER TO postgres ![]() I did everything as normal and I never had this problem before. If I add a UNIQUE constraint to that column will it help? I worked before many times on Postres but this error is showing for me for the first time. In the documentation, it says the sequence is foolproof and always works. This type of column is serial and the next value after each insert is coming from a sequence so everything seems to be all right but it still sometimes shows this error. The problem is that I have a table and a column "id" I want it to be unique number just as normal. I have a question I know this was posted many times but I didn't find an answer to my problem.
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