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Auto increment with XQuery Update?


Auto increment with XQuery Update?

By : user3861140
Date : November 19 2020, 07:01 PM
it helps some times Given an answer from Christian Grün on the BaseX mailing list, this is doable when the node one is adding is defined in the XQuery Update statement, and hence can be enhanced using an {enclosed expression} before inserting it:
code :


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SQL update to auto-increment column

SQL update to auto-increment column


By : Wayne Hunt
Date : March 29 2020, 07:55 AM
hop of those help? I am creating a test database. I have a bunch of columns and I want to 'purge' the sensitive information so that I can work on it. , For your case, it'll be:
code :
UPDATE table
SET email = CONCAT( "email", id, "@no-reply.com" );
mysql> update late
    -> set msg = concat( id, " ", msg );
Query OK, 74397 rows affected (4.15 sec)
Rows matched: 74397  Changed: 74397  Warnings: 0
MySQL : Insert Data With Single Query, But Auto Increment Number On Non-Auto Increment Column

MySQL : Insert Data With Single Query, But Auto Increment Number On Non-Auto Increment Column


By : Loan Baumgarten
Date : March 29 2020, 07:55 AM
hope this fix your issue I have this SQL query : , Try with this
code :
ALTER TABLE outbox_multipart AUTO_INCREMENT = 532;
ON DUPLICATE KEY UPDATE... how to update an AUTO INCREMENT?

ON DUPLICATE KEY UPDATE... how to update an AUTO INCREMENT?


By : Quinten
Date : March 29 2020, 07:55 AM
seems to work fine It would seem like you're looking for REPLACE instead of INSERT ... ON DUPLICATE KEY; it will remove the old row if one exists with a conflicting primary key or unique key, and insert a new one with a new FEED_ID;
code :
REPLACE INTO feeds (p_id,p_name) VALUES (1,'Olle');
Orientdb sql auto increment: id is always null (sql batch, update increment, variables)

Orientdb sql auto increment: id is always null (sql batch, update increment, variables)


By : user2544598
Date : March 29 2020, 07:55 AM
I wish did fix the issue. As stated in a comment to Lvca, the answer was:
(1) Change the field name. Id seems to be reserved (ish). It's probably possible to still bypass it and use a field named 'id', but I didn't want to mess around with it. (2) From some reason, the result was a collection (shown as '[id]'). It took me some time to figure it out, but I just had to choose the first value from it. (3) Also, there are 2 'values' here. One of the field ($current.value), and the second one(not sure where it's coming from).
code :
script sql
LET id = UPDATE CCounter INCREMENT value = 1 RETURN AFTER $current.value WHERE name='session'
LET csession = CREATE VERTEX CDate SET data_id=$id[0].value, meet_date='2015-01-01 15:23:00'
end
Update ID column value without auto increment

Update ID column value without auto increment


By : DingDing
Date : March 29 2020, 07:55 AM
Hope this helps See this question. Assuming your column name is ID,
code :
SET @i=0;
UPDATE table_name SET ID=(@i:=@i+1);
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