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Auto Increment skipping numbers?
auto increment doesn't care, if you delete some rows - everytime you insert a row, the value is incremented. If you want a numbering without gaps, don't use auto increment and do it by yourself. You could use something like this to achive this for inserting INSERT INTO tablename SET `order` = (SELECT max(`order`) + 1 FROM (SELECT * from tablename) t), ... and if you delete a row, you have to rearange the order column manually

Categories : PHP

How do I set auto increment field values to higher numbers?
You can't update an identity column but you can move the data to another location, delete the original data then set identity_insert on and move the data back with the updated incrimentor. SET NOCOUNT ON -- Create table for test CREATE TABLE #MyTable ( Id INT IDENTITY(1,1), Data INT ) INSERT INTO #MyTable ( Data ) VALUES ( 10 ) INSERT INTO #MyTable ( Data ) VALUES ( 20 ) INSERT INTO #MyTable ( Data ) VALUES ( 30 ) -- Store data in temp location SELECT * INTO #TempLocation FROM #MyTable -- Delete original data DELETE #MyTable -- Insert with updated id SET IDENTITY_INSERT #MyTable ON INSERT INTO #MyTable ( Id, Data ) SELECT Id + 500, Data FROM #TempLocation SET IDENTITY_INSERT #MyTable OFF

Categories : Mysql

Devise User ID skips several numbers in auto increment
If you're deployed on Heroku, you're using Postgres. In Postgres, primary keys ids are allocated just once in an linear, autoincremented sequence. But in the event that a transaction is rolled back, the allocated id will still be marked as used and will not be allocated again. It's impossible to tell definitively, but my guess is that the creation of all users between 30 and 61 were rolled back due to some transactional error. You may want to crosscheck against your repository commits to see whether you made any modifications to your User model that might correspond to the time frame during which no users were committed to the DB. Basically, things were working at one point, then they broke, and now they're working again. Check the period between User.find(29).created_at and User.find(6

Categories : Ruby On Rails

Auto Increment table id with mixture of letters and numbers
If you want do this, create a new field (e.g: fake_id) then use php's uniqid function. An autoincrement field is of integer type, so adding a letter there violates the constraint.

Categories : Mysql

Will large strings, instead of auto-increment numbers, as ids affect my database performance?
Yes. The increased size of the keys increases the size of the indexes and the pages used to store data. This results in fewer records per data page and more reads to get data into memory. For a single key in a single table, increasing from 4 to 32 bytes probably won't have a major impact on performance. But if you have an additional cost of 28 bytes for every foreign key reference -- and you have even tens of foreign key references in the database -- then the larger data size will start to impede performance. In this case, you should store the original key in the original data but also create an auto-incremented integer primary key.

Categories : Javascript

eclipse auto formate : How to stop new line after dot of method call?
That is occurring because of your Maximum line width setting. You might want to increase yours, or look at the other options available for wrapping. Go to Window > Preferences... Java > Code Style > Formatter > Edit... Maximum line width

Categories : Eclipse

My SQL AUto Increment
This query works in both mysql 5.6.12 and 5.5.25: ALTER TABLE `table_name` AUTO_INCREMENT =10 According to mysql manual: You cannot reset the counter to a value less than or equal to any that have already been used. For MyISAM, if the value is less than or equal to the maximum value currently in the AUTO_INCREMENT column, the value is reset to the current maximum plus one. For InnoDB, if the value is less than the current maximum value in the column, no error occurs and the current sequence value is not changed. If the table has no records, you can use TRUNCATE: TRUNCATE TABLE table_name From mysql manual: Any AUTO_INCREMENT value is reset to its start value. This is true even for MyISAM and InnoDB, which normally do not reuse sequence values. UPDATE: It

Categories : Mysql

Get the last auto increment id
PDO has a method for this: $id = $pdo->lastInsertId(); or in your case: $id = $bdd->lastInsertId(); You can find more information about the lastInsertID method here.

Categories : PHP

how to add auto increment and primary key in c#
For SQL Server check this http://www.w3schools.com/sql/sql_autoincrement.asp and for SQLite, this http://www.tutorialspoint.com/sqlite/sqlite_using_autoincrement.htm So, i think your code must look like this for SQLite Dictionary<String, String> field = new Dictionary<string, string>(); field.Add("id", "INTEGER PRIMARY KEY AUTOINCREMENT"); field.Add("mac", "VARCHAR(25)"); field.Add("serial_number", "VARCHAR(25)"); cDatabaseSQLite.CreateTables("satuan", field); and this for SQL Server Dictionary<String, String> field = new Dictionary<string, string>(); field.Add("id", "INT PRIMARY KEY IDENTITY"); field.Add("mac", "VARCHAR(25)"); field.Add("serial_number", "VARCHAR(25)");

Categories : C#

greenDao get auto-increment-ed ID
Yes there's a mean to do that, if you're using an ORM, this would be easy as !@#%. All you have to do for example is: Get the sequence name that generates the ID (there's always one even if you didn't create it manually). Create an SQL query in your code for example : session.createSQLQuery( "SELECT nextval( 'mySequenceName' )"); Then execute the query to retrieve the unique ID. I hope this will help. Cheers

Categories : Android

Primary key auto increment as -1,-2,-3
When I try to create new record using the database controllers in the application, StudentID automatically become -1 if i hit new again it's -2 By design. The negative values are temporary (in-memory only) values. When you update to the actual Db and refresh they will have become positive numbers.

Categories : C#

SQL userID auto increment
When the error is being caused it seems to be inserting a new row and incrementing the uniqueid. On error you will need to query the table for the latest ID and reset the auto increment value ALTER TABLE `table_name` AUTO_INCREMENT =new_number_here Found Here: http://forums.mysql.com/read.php?20,16088,17748#msg-17748

Categories : Mysql

auto increment id not inserted
You as inserting '' into auto-increment id. just insert other fields and MySQL handles the auto-increment column. $sql="INSERT INTO mytable(id,myvar) VALUES ('','$myvar')"; should be $sql="INSERT INTO mytable(myvar) VALUES ('$myvar')";

Categories : PHP

Getting last auto increment value in database
You should use LAST_INSERT_ID() after you insert something. For LAST_INSERT_ID(), the most recently generated ID is maintained in the server on a per-connection basis. It is not changed by another client. It is not even changed if you update another AUTO_INCREMENT column with a nonmagic value (that is, a value that is not NULL and not 0). Source You may also try SELECT max(id) FROM tableName But it will not suppose deleted rows.

Categories : Mysql

PHP MYSQL set AUTO INCREMENT to MAX + 1
This answer is about a prettier way to set the auto increment to the max(id) +1, You can do this with one Query only : $link->query("ALTER TABLE `make` AUTO_INCREMENT = ( SELECT max(id)+1 FROM `make` LIMIT 1 )" ); But your first solution should work if AUTO_INCREMENT is unique , check your database sheme

Categories : PHP

unable to auto increment session value
you seems to be resetting your counter every time. instead of having this line of code $_SESSION['countval']=0; make sure you only set it one time by testing to see if its already set. if (!isset($_SESSION['countval'])) $_SESSION['countval']=0;

Categories : PHP

MySQL auto increment refresh with new ID
You could put in such a field, but you would need a trigger to keep it up-to-date. Then, if rows are updated or deleted, maintaining becomes challenging. You can simulate this in a query pretty easily though, using variables: select e.*, @rn := if(@userid = userid, 1, @rn + 1) as UserSequenceNumber, @userid := userid from events e cross join (select @rn := 0) const order by userid; You can also incorporate this into an update statement, if you want to actually store the values in the table. Once again, let me say, keeping the value up to date requires a bunch of triggers. Also, the above works in practice. However, MySQL does not guarantee that arguments are processed in order. So, in theory, the @userid could be assigned before @rn, but this doesn't seem to hap

Categories : Mysql

Auto Increment Primary Key Integrity
A primary key is only for uniquely identifying a record. If you need specific order of your records then use an extra column for that. For instance a datetime column.

Categories : Mysql

mysql auto increment error
This could be caused by your server's configuration (/etc/my.cnf for example): You can set the auto_increment_increment and the auto_increment_offset. If the first is set to x, you will have (last_id + x) for your next id. If the second id is set to y, you start always with y (and then add xeach time). More probably: You just deleted all rows in your table and inserted again. This way the auto_increment value is not set to 1 again. You have to TRUNCATE tablename to reset this counter again (if you really want to delete all rows). Edit: Just saw your CREATE TABLE statement. If you really created your table with AUTO_INCREMENT=8440 in the options, than of course, after inserting 8000 rows you will have an ID at 16000. If this is just a SHOW CREATE TABLE after the insert statement, I sti

Categories : Mysql

How to get next Auto Increment value from specific table
See the link here. You should also add the increment value http://social.msdn.microsoft.com/Forums/vstudio/en-US/4d346672-4ad4-4a82-acf8-de392706a959/get-the-next-value-of-identity

Categories : Vb.Net

Getting Auto Increment multiple times
Ok as your comment shows you have a slight mistake in your INSERT, try this: $query = "INSERT INTO table (identifier1, identifier2) VALUES ('".$identifier1."','".$identifier2."')"; $result = mysql_query($query) or die(mysql_error()); $nextId = mysql_insert_id()+1; //you also need to +1 to get the next number But there is NO guarentee that the next id will be +1 from the last.

Categories : PHP

How I can auto increment each class objects?
You need to define next_id, or else it will compile, but not link. Like so: class Class { /* whatever */ }; Class::Class() :m_id(next_id++) { /* whatever */ } int Class::next_id = 0;

Categories : C++

EF insert not follow db auto increment(DB First)
It looks like Entity Framework is not recognizing the property as a table field. When creating an entity, you also shouldn't need to specify an html helper for its primary key if it is set to IsIdentity = true. If EF recognizes the entity, it will automatically generate a primary key for this field. Therefore you only need html helpers for its other fields. Make sure your model property is the same name as your database column. In this case, your db column should be titled uid it looks like. You can specify the target column in your model using the Column attribute if you don't want to change your db tables.

Categories : Sql Server

Use of auto increment in JavaScript and jquery
Assuming what you're really trying to do is to avoid repeating code and use [i] as an index to access each variable, then you can do that by putting your jQuery objects into an array instead of individual variables. You can replace this: this.subtrigger = []; this.subtrigger[0] = this.el.querySelector( '.submenu0' ); this.subtrigger[1] = this.el.querySelector( '.submenu1' ); this.subtrigger[2] = this.el.querySelector( '.submenu2' ); With something like this, you can access them by index. this.subtrigger = []; for (var i = 0; i <= 2; i++) { this.subtrigger[i] = this.el.querySelector('.submenu' + i); } Note: if your first object doesn't have a "0" suffix, then you will have to special case the code for that object.

Categories : Javascript

MYSQL Pull auto increment value
Yes, in mysql itself you can use the function LAST_INSERT_ID() or from php you can use mysqli_insert_id() or PDO::lastInsertId() to return the last value automatically inserted for an auto-increment column by a previous query. See: php documentation, mysql documentation

Categories : PHP

PostgreSQL table id won't auto-increment
When using Entity Framework and you make changes to a database, you must remember to update the model from database. Also, you have to save the model before you test your code again or else it will use the old model, and not get your the results you were looking for.

Categories : Database

Insert using PreparedStatement. How do I auto-increment the ID?
Leave the column out of the INSERT statement entirely. It will be generated by the database engine. Your query should be: INSERT INTO employee (time, name) VALUES (?, ?) Secondly, you have to perform the insert first, then get the keys out of the result. I believe your code should be: PreparedStatement preparedStatement = connect.prepareStatement("INSERT into employee (time, name) VALUES (?,?)", Statement.RETURN_GENERATED_KEYS); preparedStatement.setTimestamp(1, new java.sql.Timestamp(new java.util.Date().getTime())); preparedStatement.setString(2, "Test"); preparedStatement.executeUpdate(); ResultSet tableKeys = preparedStatement.getGeneratedKeys(); tableKeys.next(); int autoGeneratedID = tableKeys.getInt(1); Note this example does not c

Categories : Java

Auto-increment is not resetting in MySQL
From what I can see about the alter table statement. You can reset auto increment value by using the ALTER TABLE statement. The syntax of the ALTER TABLE statement to reset auto increment value is as follows: ALTER TABLE table_name AUTO_INCREMENT = value; You specify the table name after the ALTER TABLE clause and the value which we want to reset to in the expression AUTO_INCREMENT = value. Notice that the value must be greater than or equal to the current maximum value of the auto-increment column. Which is where your problem lies I suspect. So basically you are left with a couple of options as follows: TRUNCATE TABLE: which according to our discussion is not a option DROP and RECREATE the table: A long and painful experience ALTER auto number column: I have not tried this but yo

Categories : Mysql

mysql issue with auto-increment
To show auto_increment and its offset values, should use SHOW VARIABLES LIKE 'auto_inc%' For resetting AUTO_INCREMENT values, use : SET @@auto_increment_increment = 1; SET @@auto_increment_offset = 1; To set globally you should add @@GLOBAL : SET @@GLOBAL.auto_increment_offset = 1; SET @@GLOBAL.auto_increment_increment = 1;

Categories : Mysql

Auto increment Alphanumeric ID in MSSQL
Try this one - CREATE PROCEDURE dbo.NewEmployee @EmployeeName VARCHAR(50) AS BEGIN SET NOCOUNT ON; INSERT INTO dbo.tblEmployee(Employee_ID, Name) SELECT 'EP' + RIGHT('0000' + CAST(Employee_ID + 1 AS VARCHAR(4)), 4) , @EmployeeName FROM ( SELECT TOP 1 Employee_ID = CAST(RIGHT(Employee_ID, 4) AS INT) FROM dbo.tblEmployee ORDER BY Employee_ID DESC ) t END

Categories : SQL

Why does mysql skip some auto increment ids?
It's an example of auto increment locking in InnoDB: As you are executing 2 statements concurrently in the same session: the auto inc lock is obtained by the first query, and the autoincrement value generation is not interleaved between the statements - that is the whole point of transaction. This will always happen by design: If it didn't, the way the transactions in InnoDB work, well, wouldn't work. Scalability under OLTP type loads would be horrible as every insert would have to wait for every other insert to finish, be committed, or worse - rolled back. I.e.: If your first insert runs 5x longer than your second, and fails and is rolled back, the second one still completes and has been committed. Otherwise, you would have to wait for ea. query to be complete after the other. If you

Categories : Mysql

Add a second auto-increment field and allow duplicates
You could do it with a trigger. Here's an example. So you have your old table: drop table if exists invoices_old; create table invoices_old ( invoice_ID int, another_column int ); insert into invoices_old values (1,11), (2,12), (2,13), (3,14), (4,15), (5,16), (6,17), (6,18), (7,19); which you want to insert into your new table: drop table if exists invoices_new; create table invoices_new ( id int not null auto_increment, invoice_ID int default null, /*it's important here to have a default value*/ another_column int, primary key (id) ); You copy your data probably like this: insert into invoices_new (invoice_ID, another_column) select invoice_ID, another_column from invoices_old; Now that you have your data in the new table, you create a trigger on the new table to simulate an a

Categories : Mysql

How to increment a value in line conditioned by previous line in R?
dat$value[c(FALSE, dat$value[-nrow(dat)] == dat$value[-1]) ] <- dat$value[c(FALSE, dat$value[-nrow(dat)] == dat$value[-1]) ] +1 > dat name value 1 ADF 10 2 ABG 11 3 HFM 13 4 SAB 36 5 TCC 23 6 BHG 20 7 JKH 21 8 DRE 12 9 CFG 14 10 CFC 18 11 LKM 19 12 POI 47 13 TSE 21 14 BBB 9 This might be shorter with something like diff(x)==0. There's also an earlier [r] question about how to build an increment function that might be of interest. dat$value[c(FALSE, diff(dat$value)==0) ] <- dat$value[c(FALSE, diff(dat$value)==0 )] + 1

Categories : R

How to auto increment the size of an array in java
Use List for this requirement. You can use a ArrayList<ArrayList> in place of 2-dim array. ArrayList is Resizable-array implementation of the List interface. An array is a container object that holds a fixed number of values of a single type.

Categories : Java

Defining Composite Key with Auto Increment in MySQL
You can't have MySQL do this for you automatically for InnoDB tables - you would need to use a trigger or procedure, or user another DB engine such as MyISAM. Auto incrementing can only be done for a single primary key. Something like the following should work DELIMITER $$ CREATE TRIGGER xxx BEFORE INSERT ON issue_log FOR EACH ROW BEGIN SET NEW.sr_no = ( SELECT IFNULL(MAX(sr_no), 0) + 1 FROM issue_log WHERE app_id = NEW.app_id AND test_id = NEW.test_id ); END $$ DELIMITER ;

Categories : Mysql

Custom auto increment string field
If you are generating a slug for searching, try the friendly_id gem. It creates such strings and have lots of options for the configuration (for example, when to create or change the slug). EDIT: The you're looking for before_create. Use it like this: before_create :add_custom_id def add_custom_id self.custom_id = "service_#{id}" # whatever you need end It will run the add_custom_id method before creating a new instance in the db. More info on the ActiveRecord::Callbacks can be found in the documentation

Categories : Ruby On Rails

Force auto increment to follow another suequence
No you can't. Even if you tried the ALTER TABLE invoices AUTO_INCREMENT=bla +1 command, it would not work, as MySQL makes sure the value of AUTO_INCREMENT is higher than the highest value in the column. Basically you shouldn't use the value in your autoincremented column for anything else than primary key, so that you don't really need to care about what these values are and what sequence they follow. After all nobody sees them and they're only used by computer. If however you used these values for something that's visible for the end user... well your users will just need to adjust to the fact, that their invoces start from 99 now. Either that, or you need to renumber them, which is hell of a work and likely to introduce errors to your data.

Categories : Mysql

Primary key error in using auto increment in SQL Server CE
To avoid this error you should leave The ID column in your insertion alone. if you have a TABLE with Three COLUMNs, you should do your insertion LIKE this: the TABLE Declaration: CREATE TABLE Books ( ID INT IDENTITY, Name NVARCHAR(200), PublishYear DATETIME ) And Insert your record Like this: INSERT INTO Books (Name, PublishYear) VALUES (N'Boof-e koor', '1937-10-28 12:30:00.000') Again, you shall NOT mention the INDENTITY Column in your insertion statement.

Categories : C#

Retrieve auto increment id of last inserted record in MVC 4
You can do the following: var account = new Account(); context.Accounts.Add(account); context.SaveChanges(); var Phone = new Phone(); // account.Id will be populated with the Id from the Database. // as long as it's the identity seed or set to NewID()(Sql Server) phone.AccountId = account.Id; ...

Categories : C#

Php Mysql - Get value auto increment before and insert it to another column
Simple workaround: Save the record, get the inserted record's id, update it to the proper value $r = mysqli_query($conn, "INSERT INTO `test`(`name`) VALUES ('myvalue')"); //1. save the record $id=mysqli_insert_id($conn)); //2. get it's id mysqli_query($conn, "UPDATE `test` set `name` = $id"."'_myvalue' where id=$id limit 1"); //3. update the record appending correct id to the value as desired

Categories : PHP



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