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implement a manual increment with just simple SQL


implement a manual increment with just simple SQL

By : Darien Matthew
Date : October 16 2020, 06:10 PM
wish of those help I have a table that contain a column fieldName and another column numberOfLine. , You want row_number() :
code :
select t.*, row_number() over (partition by fieldname order by ?) as numberofline
from table t;


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Possible to implement a manual increment with just simple SQL INSERT?

Possible to implement a manual increment with just simple SQL INSERT?


By : debrocks
Date : March 29 2020, 07:55 AM
This might help you You understand that you will have collisions right?
you need to do something like this and this might cause deadlocks so be very sure what you are trying to accomplish here
code :
DECLARE @id int
BEGIN TRAN

    SELECT @id = MAX(id) + 1 FROM Table1 WITH (UPDLOCK, HOLDLOCK)
    INSERT INTO Table1(id, data_field)
    VALUES (@id ,'[blob of data]')
COMMIT TRAN
CREATE TABLE Table1(id int primary key not null, data_field char(100))
GO
Insert Table1 values(1,'[blob of data]')
Go
declare @i int
set @i =1
while @i < 10000
begin
BEGIN TRAN

INSERT INTO Table1(id, data_field)
SELECT MAX(id) + 1, '[blob of data]' FROM Table1

COMMIT TRAN;
set @i =@i + 1
end
mysql manual increment ids?

mysql manual increment ids?


By : Gina Leonard
Date : March 29 2020, 07:55 AM
Any of those help You should create a table called item_ids or something to generate id values. It's okay that this has only a single column.
code :
CREATE TABLE item_ids (
  item_id INT AUTO_INCREMENT PRIMARY KEY
) ENGINE=InnoDB;
START TRANSACTION;
INSERT INTO item_ids DEFAULT VALUES;
SET @id = LAST_INSERT_ID();
ROLLBACK;
CREATE TABLE items (
  item_id INT,
  seq_id INT AUTO_INCREMENT,
  name VARCHAR(20),
  etc VARCHAR(20),
  PRIMARY KEY (item_id, seq_id)
) ENGINE=MyISAM;
INSERT INTO items (item_id, name, etc) VALUES (@id, 'Stephane', 'etc');
php manual increment membership no

php manual increment membership no


By : MarkApollo
Date : March 29 2020, 07:55 AM
I wish this helpful for you Why not use an autoincrement field and append AE to it? Autoincrement will be carried out by MySQL so you don't have to worry about it in PHP : http://dev.mysql.com/doc/refman/5.0/en/example-auto-increment.html
And to display your user key in the format of AE0001 you can do
code :
$id = 'AE' . str_pad($autoincrementid, 5, "0", STR_PAD_LEFT);
manual variable increment

manual variable increment


By : A. Chairez
Date : March 29 2020, 07:55 AM
Hope this helps You'll have to use a mutable value holder instead of java.lang.Integer for the variable. java.util.concurrent.atomic.AtomicInteger would do for instance (you don't need atomicity, you can also go with MutableInt from Commons Lang).
Once you declare your variable as AtomicInteger, you can do $V{my_counter}.getAndIncrement() in your expressions.
Laravel Factory: Manual Increment of Column

Laravel Factory: Manual Increment of Column


By : p.kalpana
Date : March 29 2020, 07:55 AM
Any of those help For the following factory definition, the column order needs to be sequential. There is already a column id that is auto-incremented. The first row's order should start at 1 and each additional row's order should be the next number (1,2,3, etc.) , Here's something that might work.
code :
$factory->define(App\AliasCommand::class, function (Faker\Generator $faker) {
    static $order = 1;   
    return [
        'user_id' => App\User::inRandomOrder()->first()->id,
        'command' => $faker->word,
        'content' => $faker->sentence,
        'order'   => $order++
    ];
});
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