EF6 CodeFirst My [Key] Id Column is not auto-incrementing as an identity column should
c#,sql,entity-framework,code-first,on-duplicate-key
I remember when I used to do EF I would create a table with Identity and in the class I would attribute the id column with [DatabaseGenerated(DatabaseGeneratedOption.Identity)] so I am assuming that your code should be modelBuilder.Entity<MyBase>() .Property(c => c.Id) .HasDatabaseGeneratedOption(DatabaseGeneratedOption.Identity); ...
Update Multiple Rows mysql
mysql,sql,sql-update,on-duplicate-key
Use a case statement... Update tbl set points = CASE WHEN ID = 1 then 05 when ID = 2 then 10 when ID = 3 then 825 when ID = 4 then 48 END Working fiddle: http://sqlfiddle.com/#!9/6cb0d/1/0...
Duplicate key update MySQL not updating
I suspect your problem is related to this question: MySQL behavior of ON DUPLICATE KEY UPDATE for multiple UNIQUE fields From the accepted answer: UPDATE in ON DUPLICATE KEY UPDATE is performed if one of the UNIQUE field equals the value to be inserted It sounds like you are expecting...
timestamp autoupdate not working with ON DUPLICATE KEY UPDATE (PDO)
php,mysql,timestamp,on-duplicate-key
As far as I can see, the problem with your queries might be because you made timestamp field nullable `timestamp` timestamp NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP Try making it NOT NULL - since you have valid default value for it, MySQL won't complain you have not provided the value...
MySQL On Duplicate Insert
mysql,sql,sql-insert,on-duplicate-key
Removing the parenthesis around the duplicate key update expressions should do the trick.
Can Sequel be forced to always return autoincrement id with ON DUPLICATE KEY UPDATE?
mysql,ruby,sequel,on-duplicate-key
It is possible to cause Sequel to execute a function on the RDBMS using the Sequel.function() method To execute MySQL's native LAST_INSERT_ID() and pass the column id as its argument, pass the column name as a symbol as the second argument: Sequel.function(:last_insert_id, :id) The Dataset#on_duplicate_key_update method accepts a hash of...
Delete duplicated rows from my database + Make sure no more duplications will be added
php,mysql,database,insert-update,on-duplicate-key
for first question you can use this query: delete from logs where user IN (SELECT * from (select user FROM logs GROUP BY user HAVING COUNT(user) > 1) tempTable); for second question since you already have primary key you cannot use on duplicate key update on user column. But you...
INSERT INTO, SELECT DISTINCT - ignoring duplicate key entries
mysql,sql,select,insert-into,on-duplicate-key
What about: INSERT INTO songs(ID) SELECT DISTINCT songsID FROM iTunesImport WHERE (songsID IS NOT NULL) AND songsID NOT IN (SELECT ID FROM songs) ...
Insert If duplicate not found in table else update
mysql,sql,insert,sql-insert,on-duplicate-key
If the combination of roll and sub should be unique, you should define such a key in your table: ALTER TABLE student ADD CONSTRAINT student_uq UNIQUE(roll, sub) Note that if you do this, you don't have to explicitly create the index you're creating, the constraint will create on for you....